Articles de revues : « Heteropteran pests »

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Prado, Simone Souza, et Tiago Domingues Zucchi. « Host-Symbiont Interactions for Potentially Managing Heteropteran Pests ». Psyche : A Journal of Entomology 2012 (2012) : 1–9. http://dx.doi.org/10.1155/2012/269473.

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Insects in the suborder Heteroptera, the so-called true bugs, include over 40,000 species worldwide. This insect group includes many important agricultural pests and disease vectors, which often have bacterial symbionts associated with them. Some symbionts have coevolved with their hosts to the extent that host fitness is compromised with the removal or alteration of their symbiont. The first bug/microbial interactions were discovered over 50 years ago. Only recently, mainly due to advances in molecular techniques, has the nature of these associations become clearer. Some researchers have pursued the genetic modification (paratransgenesis) of symbionts for disease control or pest management. With the increasing interest and understanding of the bug/symbiont associations and their ecological and physiological features, it will only be a matter of time before pest/vector control programs utilize this information and technique. This paper will focus on recent discoveries of the major symbiotic systems in Heteroptera, highlighting how the understanding of the evolutionary and biological aspects of these relationships may lead to the development of alternative techniques for efficient heteropteran pest control and suppression of diseases vectored by Heteroptera.

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Ye, Fei, Hu Li et Qiang Xie. « Mitochondrial Genomes from Two Specialized Subfamilies of Reduviidae (Insecta : Hemiptera) Reveal Novel Gene Rearrangements of True Bugs ». Genes 12, n^o 8 (26 juillet 2021) : 1134. http://dx.doi.org/10.3390/genes12081134.

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Reduviidae, a hyper-diverse family, comprise 25 subfamilies with nearly 7000 species and include many natural enemies of crop pests and vectors of human disease. To date, 75 mitochondrial genomes (mitogenomes) of assassin bugs from only 11 subfamilies have been reported. The limited sampling of mitogenome at higher categories hinders a deep understanding of mitogenome evolution and reduviid phylogeny. In this study, the first mitogenomes of Holoptilinae (Ptilocnemus lemur) and Emesinae (Ischnobaenella hainana) were sequenced. Two novel gene orders were detected in the newly sequenced mitogenomes. Combined 421 heteropteran mitogenomes, we identified 21 different gene orders and six gene rearrangement units located in three gene blocks. Comparative analyses of the diversity of gene order for each unit reveal that the tRNA gene cluster trnI-trnQ-trnM is the hotspot of heteropteran gene rearrangement. Furthermore, combined analyses of the gene rearrangement richness of each unit and the whole mitogenome among heteropteran lineages confirm Reduviidae as a ‘hot-spot group’ of gene rearrangement in Heteroptera. The phylogenetic analyses corroborate the current view of phylogenetic relationships between basal groups of Reduviidae with high support values. Our study provides deeper insights into the evolution of mitochondrial gene arrangement in Heteroptera and the early divergence of reduviids.

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DURSUN, AHMET, et MERAL FENT. « Type Localities of Heteroptera (Insecta : Hemiptera) from Turkey ». Zootaxa 4227, n^o 4 (6 février 2017) : 451. http://dx.doi.org/10.11646/zootaxa.4227.4.1.

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The Heteroptera (Hemiptera) fauna of the Palaearctic Region is represented by 9365 species belonging to 1632 genera of which 1349 species belonging to 469 genera are also recorded from Turkey. Type localities of 237 species are in Turkey of which 108 species and 4 subspecies are endemic for the Heteroptera fauna of Turkey, indicating the importance of the country as a refugium, genetic hotspot and dispersal centre during pleistocene glaciation. Some heteroptera are important in agriculture as predators used in biological control or as ectoparasits and pests on plants. Most heteropteran species are phytophagous feeding on leaves, flowers, fruits, seeds and shoots and cause economic damage. The suborder Heteroptera comprises aquatic, semi-aquatic and terrestrial species.

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Gomes, Mariana Oliveira, Márcia Maria Urbanin Castanhole, Hederson Vinicius de Souza, Aline Sumitani Murakami, Tatiani Seni de Souza Firmino, Priscila Samara Saran, Cecilia Artico Banho, Leticia da Silva Monteiro, Jocielly Cristina Pereira da Silva et Mary Massumi Itoyama. « Morphological aspects of the testes of 18 species of terrestrial of Heteroptera from Northwestern São Paulo (Brazil) ». Biota Neotropica 13, n^o 3 (septembre 2013) : 131–35. http://dx.doi.org/10.1590/s1676-06032013000300016.

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The Heteroptera are known for their odour, for being pests or for being disease carriers. However, they are still not extensively studied, perhaps because they form a very large group. Therefore, with the aim of enhancing the knowledge of the morphology of the testes of this insect order, we collected and analysed 18 species of terrestrial Heteroptera from the northwestern part of São Paulo. The analysis of these species revealed some differences between the testicles of these species, including their shape (elongated, oval, round or pecten), the morphology of the testicular lobes (elongated and paired side by side or united in a single region), the colours of the peritoneal sheath that surrounds the lobes (red, orange, yellow or translucent), and the number of testicular lobes (one, two, four, five, six or seven). Because the aspects analysed were highly variable, our study suggests a need for further analysis of Heteropteran testicular morphological differences.

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Li, Xinyu, Li Tian, Hu Li et Wanzhi Cai. « Ultrastructural Variations of Antennae and Labia Are Associated with Feeding Habit Shifts in Stink Bugs (Heteroptera : Pentatomidae) ». Biology 10, n^o 11 (10 novembre 2021) : 1161. http://dx.doi.org/10.3390/biology10111161.

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The family Pentatomidae (stink bugs) is one of the largest groups in Heteroptera, containing many important pests and natural enemies. They exhibit highly diversified feeding habits and related structural modifications, but the key morphological characteristics associated with feeding habit radiation remain unclear. In the current study, we address this question by analyzing morphological variations of feeding related organs. We compare the ultrastructures of antennae and mouthparts across the chosen 17 species in Pentatomidae, representing both plant feeders and predators from four subfamilies. A strong association between ultrastructural adaptation and feeding habit transition has been revealed. The long, sharp, and hook-like mandibular teeth and maxillary barbs are exclusively present in predatory Pentatomidae, suggesting their tight association with the shift of feeding habit from phytophagy to predation. Significant differences between phytophagous and predatory species are also found in antennal and labial sensilla types and arrangements, implying their important function in food selection. Our data identify a series of key morphological structures associated with feeding habit variations among stink bugs, which will facilitate future studies on adaptive evolution of feeding habits, utilization, and population control of economic species in Pentatomidae as well as in other heteropteran lineages.

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Gibicsár, Szilvia, et Sándor Keszthelyi. « Topographical Based Significance of Sap-Sucking Heteropteran in European Wheat Cultivations : A Systematic Review ». Diversity 15, n^o 1 (13 janvier 2023) : 109. http://dx.doi.org/10.3390/d15010109.

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Sap sucking heteropteran cereal bugs—members of the Eurygaster and Aelia genus—are serious pests of wheat. Moreover, they feed on a variety of gramineous plant species, including rye, barley, oat, maize, and millet. They are widely distributed in the European continent. The purpose of this review paper is two-fold; it summarizes the currently available data on the biological characteristics, the inflicted damage, and their European distribution and, in addition, we aimed to determine their economic importance, based on data available in the current literature. For the most important cereal bug species, we have collected data on their occurrence in Europe to provide a comprehensive picture of their distribution, and characterized them according to their temperature requirements at different life stages. We have also determined the degree of their attachment to wheat as their host plant, examining the synchronization between the pests and the life cycle of the plant. Finally, we compared their migration characteristics. All the above-mentioned characteristics were merged, in order to assess and rank the damage potential of each species.

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C., Mohan, Pawankumar G, Rajeswar Rao, Raj Kumar Mishra et Shashikiran Barve. « Predatory Potential of Canthecona furcellata (Pentatomidae : Hemiptera) Against Key Defoliator Pests of Teak in Nursery and Chik Pea under Field Conditions ». Ecology, Environment and Conservation 28, n^o 08 (2022) : S141—S143. http://dx.doi.org/10.53550/eec.2022.v28i08s.022.

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Canthecona furcellata (Wolff.) (Hemiptera: Pentatomidae) is important biological control agents of many Lepidopteron, Coleopteran and Heteropteran insects. This predatory behavior of the species, this is a promising biological control agent for insect pests of agriculture and forest ecosystem. The nursery and field experiments were conducted to find out the predation potential of E. furcellata. The results revealed that maximum 93.66% predation was recorded on larvae of E. macheralis followed by 89.0 and 84.39% on larvae of H.puera and H. armigera respectively. Therefore, E. furcellata could be utilised effectively against E. machaeralis under field conditions, moreover, H. puera and H. armigera could be employed as laboratory hosts for mass rearing of E. furcellata.

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Riddick, E. W., G. Dively et P. Barbosa. « Season-Long Abundance of Generalist Predators in Transgenic versus Nontransgenic Potato Fields2 ». Journal of Entomological Science 35, n^o 4 (1 octobre 2000) : 349–59. http://dx.doi.org/10.18474/0749-8004-35.4.349.

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We estimated the effect of deploying Cry3A-transgenic potatoes resistant to the Colorado potato beetle, Leptinotarsa decemlineata (Say), on the season-long relative abundance of naturally-occurring generalist predators. Low inputs of foliar insecticides were used in the transgenic fields to suppress nontarget pests and in the nontransgenic fields to prevent total defoliation of potato plants by L. decemlineata. Dominant plant-foraging heteropteran predators and lady beetles were sampled by sweeping foliage, whereas, ground-foraging carnivorous carabids, ants, and spiders were sampled by trapping in pitfalls. Orius insidiosus (Say) was significantly (P ≤ 0.05) more abundant in transgenic treatment fields than in nontransgenic fields in 1994, but not in 1995. None of the coccinellids (3 taxa) were affected by the treatments in either season. The carnivorous carabids (3 taxa) and ants were not affected by either treatment, but spiders were significantly more abundant in the transgenic treatment fields in 1995. We conclude that the deployment of pure stands of Cry3A-transgenic potatoes, with a minimum input of insecticides to suppress non-target pests, will have no deleterious effects on the populations of generalist predators in the potato ecosystem.

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Dios, Rodrigo de V. P., Joachim Ziegler et Theo Zeegers. « The American genus Trichopoda (Diptera : Tachinidae) in Europe – Decades of a misidentified invasive species) ». Beiträge zur Entomologie = Contributions to Entomology 71, n^o 2 (31 décembre 2021) : 221–25. http://dx.doi.org/10.21248/contrib.entomol.71.2.221-225.

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Despite its importance for biological control of heteropteran pests (Hemiptera) and remarkable features, the taxonomy of the genus Trichopoda remained confusing for a long time. Due to a recent taxonomic revision, new information about its species real distribution and host records were found out. An invasive species of the genus has been recorded for Europe for decades, but it has been misidentified as Trichopoda (Galactomyia) pennipes for a long time. Here we present the correct name for that alien species, Trichopoda (Galactomyia) pictipennis. Some comments about the identification of Trichopoda species introduced in other areas, such as Australia, are also made. The correct species identification, as well as the correct host records, is crucial for future studies regarding biological control, and to under-stand the possible impacts that this invasive species could cause to the local environment.

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Fan, Shiyu, Chao Chen, Qing Zhao, Jiufeng Wei et Hufang Zhang. « Identifying Potentially Climatic Suitability Areas for Arma custos (Hemiptera : Pentatomidae) in China under Climate Change ». Insects 11, n^o 10 (4 octobre 2020) : 674. http://dx.doi.org/10.3390/insects11100674.

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Spodoptera frugiperda is a notorious pest that feeds on more than 80 crops, and has spread over 100 countries. Many biological agents have been employed to regulate it, such as Arma custos. A. custos is a polyphagous predatory heteropteran, which can effectively suppress several agricultural and forest pests. Thus, in order to understand where A. custos can survive and where can be released, MaxEnt was used to predict the potentially suitable areas for A. custos in China under climate change conditions. The results show that the annual mean temperature (bio1) and annual precipitation (bio12) are the major factors influencing the distribution of A. custos. The optimal range of the two are 7.5 to 15 °C, 750 to 1200 mm, respectively. The current climate is highly suitable for A. custos in Hebei, Henan, Shandong, Anhui, Hubei, Jiangsu, and Zhejiang Provinces. Considering the currently suitable distribution area of S. frugiperda, artificially reared A. custos is suitable for release in Fujian, Zhejiang, Jiangxi, Hunan, and southeastern Sichuan Provinces. Under the future climatic scenarios, the suitable area will decrease and shift towards the north. Overall, this result can provide a reference framework for future application of A. custos for biological control.

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Riley, J. R., D. R. Reynolds et R. A. Farrow. « The migration of Nilaparvata lugens (stål) (delphacidae) and other hemiptera associated with rice during the dry season in the Philippines : a study using radar, visual observations, aerial netting and ground trapping ». Bulletin of Entomological Research 77, n^o 1 (mars 1987) : 145–69. http://dx.doi.org/10.1017/s0007485300011627.

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AbstractThe migratory flight behaviour of Nilaparvata lugens (Stål), other delphacid and cicadellid pests of rice and some of their heteropteran predators was investigated during the dry-season crop in an irrigated rice-growing area of the Philippines. A combination of radar (including an X-band and a newly-developed Q-band system (8 mm wavelength)), aerial netting, ground trapping and visual observations was used to determine diel changes in aerial density and composition of arthropods in flight over the study site. The most abundant migrant caught in the aerial nets was Cyrtorhinus lividipennis Reuter (a mirid predator of N. lugens), with Nephotettix spp. and Nilaparvata lugens the next most abundant species. Flight activity in all migrants was found to be very largely confined to periods of about 30 min at dusk and dawn, with minimal activity at other times of the day and night. Migration distance in the dusk flight was generally limited to 6–30 km, depending on wind speed, and the dawn migration covered shorter distances due to the lighter winds. Small numbers of rice cicadellids and delphacids including N. lugens were occasionally detected later in the night, and these may have had the potential to migrate longer distances.

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Pumariño, L., O. Alomar et N. Agustí. « Development of specific ITS markers for plant DNA identification within herbivorous insects ». Bulletin of Entomological Research 101, n^o 3 (24 novembre 2010) : 271–76. http://dx.doi.org/10.1017/s0007485310000465.

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AbstractDNA-based techniques have proved to be very useful methods to study trophic relationships between pests and their natural enemies. However, most predators are best defined as omnivores, and the identification of plant-specific DNA should also allow the identification of the plant species the predators have been feeding on. In this study, a PCR approach based on the development of specific primers was developed as a self-marking technique to detect plant DNA within the gut of one heteropteran omnivorous predator (Macrolophus pygmaeus) and two lepidopteran pest species (Helicoverpa armigera and Tuta absoluta). Specific tomato primers were designed from the ITS 1–2 region, which allowed the amplification of a tomato DNA fragment of 332 bp within the three insect species tested in all cases (100% of detection at t=0) and did not detect DNA of other plants nor of the starved insects. Plant DNA half-lives at 25°C ranged from 5.8 h, to 27.7 h and 28.7 h within M. pygmaeus, H. armigera and T. absoluta, respectively. Tomato DNA detection within field-collected M. pygmaeus suggests dietary mixing in this omnivorous predator and showed a higher detection of tomato DNA in females and nymphs than males. This study provides a useful tool to detect and to identify plant food sources of arthropods and to evaluate crop colonization from surrounding vegetation in conservation biological control programs.

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Bogale, Mesfin, Shova Mishra, Kendall Stacey, Lillie Rooney, Paula Barreto, Gina Bishop, Katherine Bossert et al. « First Description of the Nuclear and Mitochondrial Genomes and Associated Host Preference of Trichopoda pennipes, a Parasitoid of Nezara viridula ». Genes 14, n^o 6 (27 mai 2023) : 1172. http://dx.doi.org/10.3390/genes14061172.

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Trichopoda pennipes is a tachinid parasitoid of several significant heteropteran agricultural pests, including the southern green stink bug, Nezara viridula, and leaf-footed bug, Leptoglossus phyllopus. To be used successfully as a biological control agent, the fly must selectively parasitize the target host species. Differences in the host preference of T. pennipes were assessed by assembling the nuclear and mitochondrial genomes of 38 flies reared from field-collected N. viridula and L. phyllopus. High-quality de novo draft genomes of T. pennipes were assembled using long-read sequencing. The assembly totaled 672 MB distributed among 561 contigs, having an N50 of 11.9 MB and a GC of 31.7%, with the longest contig at 28 MB. The genome was assessed for completeness using BUSCO in the Insecta dataset, resulting in a score of 99.4%, and 97.4% of the genes were single copy-loci. The mitochondrial genomes of the 38 T. pennipes flies were sequenced and compared to identify possible host-determined sibling species. The assembled circular genomes ranged from 15,345 bp to 16,390 bp and encode 22 tRNAs, two rRNAs, and 13 protein-coding genes (PCGs). There were no differences in the architecture of these genomes. Phylogenetic analyses using sequence information from 13 PCGs and the two rRNAs individually or as a combined dataset resolved the parasitoids into two distinct lineages: T. pennipes that parasitized both N. viridula and L. phyllopus, and others that parasitized only L. phyllopus.

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Cervantes, Felix A., Elaine A. Backus, Larry Godfrey, Maria G. Rojas, Waseem Akbar et Thomas L. Clark. « Quantitative Differences in Feeding Behavior of Lygus lineolaris (Hemiptera : Miridae) on Transgenic and Nontransgenic Cotton ». Journal of Economic Entomology 112, n^o 4 (27 mars 2019) : 1920–25. http://dx.doi.org/10.1093/jee/toz054.

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Abstract Lygus lineolaris (Palisot de Beauvois) is one of the most important pests on cotton in the United States. Previous research showed that transgenic cotton plants expressing the Bacillus thurigiensis (Bt) crystalline protein Cry51Aa2.834_16 (designated MON 88702) have insecticidal effects on nymphal L. lineolaris. The present study is the first to examine effects of a Bt-expressing cotton on feeding by a heteropteran like L. lineolaris. We compared stylet probing behaviors of third-instar nymphs on pin-head squares (i.e., buds <3 mm wide) of MON 88702 cotton versus nontransgenic (control) DP393 plants using AC-DC electropenetrography. Waveforms were quantified based on appearances previously characterized and correlated with adult L. lineolaris feeding behaviors; nymphal and adult waveforms had the same appearance. Generalized third-instar feeding included maceration of tissues during cell rupturing (waveform CR), tasting/testing during a waveform called transition (T), and ingestion (I); all were similar between MON 88702 and DP393 plants. However, the number of events and duration of each waveform were different between treatments. Relative to nymphs on DP393, those on MON 88702 spent more time overall in stylet probing, due to increased number of maceration events per probe and longer durations of tasting/testing, per waveform event, per probe, and per insect; yet, ingestion events were shorter and more frequent. These findings support that MON 88702 cotton plants were less palatable and/or preorally digestible to L. lineolaris nymphs than DP393, suggesting antixenosis for MON 88702. Transgenic cotton antixenosis could positively affect cotton pest management by reducing feeding of L. lineolaris nymphs and protecting crop yield.

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Vélez, Mayra, Lívia Aguiar Coelho, David dos Santos Martins et Paulo Sergio Fiuza Ferreira. « Survey of the Heteroptera (Hemiptera) on pastures from Espírito Santo state, Brazil : new records, range extension, and notes of potential pests ». EntomoBrasilis 13 (28 août 2020) : e907. http://dx.doi.org/10.12741/ebrasilis.v13.e907.

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Espírito Santo is a Brazilian state that has a wide variety of habitats, providing a high biological diversity of fauna and flora. However, few reports had been shown about the insect diversity of this region, especially of heteropterans insects that inhabit on pasture ecosystems. In the present study, forty-three species of Heteroptera belonging to thirteen families were collected on pastures on Espírito Santo state, Brazil: Alydidae (1 sp.), Berytidae (3 sp.), Blissidae (1 sp.), Coreidae (7 sp.), Miridae (16 sp.), Nabidae (1sp.), Pentatomidae (3 sp.), Pyrrhocoridae (1 sp.), Reduviidae (6 sp.), Rhopalidae (1 sp.), Rhyparochromidae (1sp.), Thaumastocoridae (1 sp.) and Tingidae (1 sp). Among the species; Cebrenis tenebrosa (Brailovsky, 1995) is recorded for the first time in Brazil. The range extension is also included for several heteropterans collected on the Espírito Santo state. The following species: Blissus aff. antillus (Leonard, 1968); Collaria oleosa (Distant, 1883); Oebalus ypsilongriseus (De Geer, 1773), and Trigonotylus tenuis (Reuter, 1893) were observed causing damages on pastures, therefore, in this study, we suggested those species as potential pastures pests. This study aims to increase the knowledge about the heteropterans and to show the presence of some pest species that may cause serious damage to pastures and consequently affect the economy of cattle breeders on the state.

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Musolin, Dmitry L., Natalia I. Kirichenko, Natalia N. Karpun, Evgeniy V. Aksenenko, Viktor B. Golub, Ivan A. Kerchev, Michail Y. Mandelshtam et al. « Invasive Insect Pests of Forests and Urban Trees in Russia : Origin, Pathways, Damage, and Management ». Forests 13, n^o 4 (28 mars 2022) : 521. http://dx.doi.org/10.3390/f13040521.

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Invasive alien insects cause serious ecological and economical losses around the world. Here, we review the bionomics, modern ranges (and their dynamics), distribution pathways, monitoring, and control measures of 14 insect species known to be important invasive and emerging tree pests in forest and urban ecosystems of Russia: Leptoglossus occidentalis (Hemiptera: Heteroptera: Coreidae), Halyomorpha halys (Hemiptera: Heteroptera: Pentatomidae), Corythucha arcuata (Hemiptera: Heteroptera: Tingidae), Agrilus fleischeri, A. mali, A. planipennis, Lamprodila (Palmar) festiva (Coleoptera: Buprestidae), Ips amitinus, Polygraphus proximus (Coleoptera: Curculionidae: Scolytinae), Cydalima perspectalis (Lepidoptera: Crambidae), Acrocercops brongniardella, Cameraria ohridella, Phyllonorycter issikii, and P. populifoliella (Lepidoptera: Gracillariidae). We identified three major scenarios of tree pest invasions in the country and beyond: (1) a naturally conditioned range expansion, which results in the arrival of a pest to a new territory and its further naturalization in a recipient region; (2) a human-mediated, long-distance transfer of a pest to a new territory and its further naturalization; and (3) a widening of the pest’s trophic niche and shift to new host plant(s) (commonly human-introduced) within the native pest’s range frequently followed by invasion to new regions.

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Zhu, Wenli, Lin Yang, Jiankun Long, Zhimin Chang, Nian Gong, Yinlin Mu, Shasha Lv et Xiangsheng Chen. « Characterizing the Complete Mitochondrial Genomes of Three Bugs (Hemiptera : Heteroptera) Harming Bamboo ». Genes 14, n^o 2 (28 janvier 2023) : 342. http://dx.doi.org/10.3390/genes14020342.

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Herein, we report the mitochondrial genomic characteristics of three insect pests, Notobitus meleagris, Macropes harringtonae, and Homoeocerus bipunctatus, collected from bamboo plants in Guizhou Province, China. For the first time, the damaged conditions and life histories of M. harringtonae and H. bipunctatus are described in detail and digital photographs of all their life stages are provided. Simultaneously, the mitochondrial genome sequences of three bamboo pests were sequenced and analyzed. Idiocerus laurifoliae and Nilaparvata lugens were used as outgroups, and the phylogenetic trees were constructed. The mitochondrial genomes of the three bamboo pests contained 37 classical genes, including 13 protein-coding genes (PCGs), two ribosomal RNA genes (rRNAs), 22 transfer RNAs (tRNAs), and a control region, with a total length of 16,199 bp, 15,314 bp, and 16,706 bp, respectively. The A+T values of the three bamboo pests were similar, and trnS1 was a cloverleaf structure with missing arms. The phylogenetic analyses, using the Bayesian inference (BI) and Maximum likelihood (ML), supported that N. meleagris and H. bipunctatus belonged to the Coreoidea family, whereas M. harringtonae belonged to the Lygaeoidea family with high support values. This study involves the first complete sequencing of the mitochondrial genomes of two bamboo pests. By adding these newly sequenced mitochondrial genome data and detailed descriptions of life histories, the database of bamboo pests is improved. These data also provide information for the development of bamboo pest control methods by quick identification techniques and the use of detailed photographs.

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Petrakis, P. V., et P. Moulet. « First record of the Nearctic Zelus renardii (Heteroptera, Reduviidae, Harpactocorinae) in Europe ». ENTOMOLOGIA HELLENICA 20, n^o 2 (1 juin 2017) : 75. http://dx.doi.org/10.12681/eh.11511.

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The Nearctic assasin bug species Zelus reinardii was found for the first time in Attica, Greece, Europe. This species is a generalist predator which can contribute to the control of insect pests. This is also a known predator of several biological control agents of pests. Therefore, its naturalization in Greece is potentially problematic in economic settings since the insect may act as both an intraguild and a beneficial predator. The risky nature of importation in other areas (e.g. Hawaii) showed the possibility of these ecological roles.

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Roychoudhury, N., Subhash Chandra, Ram Singh, Shashi Barve et Anand Das. « New Record of Insect Pests on Seedlings of Eucalyptus ». Indian Journal of Forestry 38, n^o 2 (1 juin 2015) : 117–24. http://dx.doi.org/10.54207/bsmps1000-2015-b58e7v.

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The present paper reports the occurrence of insects damaging Eucalyptus in nursery stage. Out of nine insects recorded, seven species observed as occasional defoliating species, viz. Achaea janata (Linnaeus) (Lepidoptera : Noctuidae), Catapsilia crocale Cramer (Lepidoptera : Pieridae), Dasychira grotei Moore (Lepidoptera : Lymantriidae), Eurema hecabe Linnaeus (Lepidoptera : Pieridae), Hyposidra talaca (Walker) (Lepidoptera : Geometridae), Lymantria sobrina Moore (Lepidoptera : Lymantriidae) and Spodoptera litura (Fabricius) (Lepidoptera : Noctuidae), one rare sap-sucking species, Chrysocoris purpureus Westwood (Heteroptera : Pentatomodae) and one gall making species, Leptocybe invasa Fisher & LaSalle (Hymenoptera : Eulophidae). Among the nine species collected, six defoliators and one sap sucker are new addition to the Eucalyptus entomology. Further, H. talaca is the first record of occurrence on Eucalyptus in India. On the basis of percentage infestation/damage caused by above insects, L. invasa, commonly known as blue gum chalcid wasp, was recorded only as a key insect pest in nursery stage of Eucalyptus. The results have been discussed in the light of the present observations.

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Stonedahl, G. M., W. R. Dolling et G. J. duHeaume. « Identification guide to common tingid pests of the world (Heteroptera : Tingidae) ». Tropical Pest Management 38, n^o 4 (janvier 1992) : 438–49. http://dx.doi.org/10.1080/09670879209371743.

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PAZYUK, IRINA M., et TATYANA S. FOMINYKH. « The evaluation of potato virus Y transfer by some beneficial bugs (Hemiptera : Heteroptera) ». Biodiversitas Journal of Biological Diversity 20, n^o 4 (2 avril 2019) : 1222–27. http://dx.doi.org/10.13057/biodiv/d200439.

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Abstract. Pazyuk IM, Fominykh TS. 2019. The evaluation of potato virus Y transfer by some beneficial bugs (Hemiptera: Heteroptera). Biodiversitas 20: 1222-1227. The predatory bugs Podisus maculiventris, Orius majusculus, Nesidiocoris tenuis, and Macrolophus pygmaeus were commonly used for control of pests in potato meristem culture in greenhouses. In this study, the risk of transmission of potato virus Y (PVY) by entomophagous bugs was estimated in cage experiments. It has been shown that none of the bugs tested was capable of transmitting the PVY. However, N. tenuis and M. pygmaeus have been shown to damage potato seedlings in the absence of animal food (pests or factitious food). The bug N. tenuis caused severer damage to potato plants than did the bug M. pygmaeus. Therefore, we can recommend only P. maculiventris and O. majusculus for pest control in potato meristem culture in greenhouses.

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Levchenko, I. S., A. I. Gubin et V. V. Martynov. « To the study of formation of phytophagous true bugs (Insecta : Heteroptera) complex on introduced coniferous in Donbass ». Plant Biology and Horticulture : theory, innovation 1, n^o 157 (11 janvier 2021) : 42–49. http://dx.doi.org/10.36305/2712-7788-2020-4-157-42-49.

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Three species of true bugs: Dichrooscytus gustavi Josifov, 1981 (Miridae), Gonocerus juniperi HerrichSchaeffer, 1839 (Coreidae) and Chlorochroa pinicola (Mulsant & Rey, 1852) (Pentatomidae) was firstly found during the reconnoiter surveillance of specialized phytophagous Hemiptera (Heteroptera) on introduced coniferous in the territory of Donbass for the period 2019–2020. Two species (G. juniperi and C. pinicola) are recorded for the first time for the southeast of Ukraine, D. gustavi - for the first time for Ukraine. The paper presents information on the distribution, biology and ecology of the recorded species. Dichrooscytus gustavi and G. juniperi are trophically associated with junipers (Juniperus spp.), C. pinicola – with pines (Pinus spp.). The expansion of phytophagous species composition on pines in Donbass is a consequence of active forest management activities. In addition to the nearby invaders, which include C. pinicola, an increase in the number of dangerous alien invasive pests such as Leptoglossus occidentalis Heidemann, 1910 (Heteroptera: Coreidae) has recently been observed on pines. The invasion of the sucking-feeders species on junipers into Donbass may be the result of massive import potted crops of this breed from nurseries and independent dispersal of this insects from adjacent territories. An increase of the number of sucking pests - the main vectors of viral and phytoplasmic diseases on pines and junipers can negatively affect the decorative and sanitary condition of coniferous plantations in Donbass. To develop a forecast of harmfulness and a complex of protective measures, it is necessary to control the appearance of new phytophagous species on introduced coniferous and to constantly monitor the state of their populations.

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Guessan-Bi, Trazié Kevin, Konan Lucien Kouame, Koffi Éric Kwadjo, Kouadio Dagobert Kra et Mamadou Doumbia. « Abundance and Dynamics of the Main Heteroptera Pests of Cocoa Tree in the Orchards of the Department of Méagui (South-West, Côte d’Ivoire) ». Journal of Agricultural Science 14, n^o 8 (15 juillet 2022) : 40. http://dx.doi.org/10.5539/jas.v14n8p40.

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The capsids Sahlbergella singularis and Distantiella theobromae, the cocoa mosquito Helopeltis sp., and the green bug Bathycoelia thalassina are the main Heteroptera pests causing immense damage in cocoa fields in the department of Méagui, the main cocoa producing area of Côte d’Ivoire. The actual study was conducted to assess the spatial and temporal distribution of these pests in this department. From May 2020 to April 2021, the pest abundance and population dynamics were recorded once a month in seven selected cocoa farms in the localities of Yaodankro and Sérigbangan. Tarping and systematic search methods were used. The results indicated that the three types of insect pests are present and the abundance rates ranging from 20.83% to 42.22% from 15 910 individuals recorded. Capsids were more abundant in the Sérigbangan orchards than in those of Yaodankro, while the cocoa mosquito and the green bug were more abundant in Yaodankro than in Sérigbangan. The number of individuals remained relatively high throughout the year except in May-June (months of intense rainfall) where capsid and cocoa mosquito populations were less abundant. Peak populations occurred during the dry season (July, August, February, and March-April) and during the low/medium rainfall season (September and November). The cocoa mosquito and the green bug once considered minor pests were shown to be major pests.

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Scudder, Geoffrey G. E., et Robert G. Foottit. « Alien true bugs (Hemiptera : Heteroptera) in Canada : composition and adaptations ». Canadian Entomologist 138, n^o 1 (février 2006) : 24–51. http://dx.doi.org/10.4039/n05-801.

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AbstractThe distribution, spread, and adaptations of the 81 alien heteropterous species recorded in Canada are summarized. Sixty-nine species had eastern introductions and 47 had western introductions; 35 were introduced separately on both coasts. Most of the alien species are mirids of European origin. Several of these alien mirids have adapted and become pests of fruit and other agricultural crops, and some have become useful predators. Only 3 have adapted and spread across the whole country.

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Solhjouy-Fard, Samaneh, Alimorad Sarafrazi, Mehdi Minbashi Moeini et Ali Ahadiyat. « Predicting Habitat Distribution of Five Heteropteran Pest Species in Iran ». Journal of Insect Science 13, n^o 116 (octobre 2013) : 1–16. http://dx.doi.org/10.1673/031.013.11601.

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Ribeiro, Genésio Tâmara, Marcelo da Costa Mendonça, João Basílio de Mesquita, José Cola Zanuncio et Gervásio Silva Carvalho. « Spittlebug Cephisus siccifolius damaging eucalypt plants in the State of Bahia, Brazil ». Pesquisa Agropecuária Brasileira 40, n^o 7 (juillet 2005) : 723–26. http://dx.doi.org/10.1590/s0100-204x2005000700015.

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Most common pests of eucalyptus plants in Brazil are leaf cutting ants and defoliating caterpillars. Other groups, eventually, feeding on eucalyptus include Heteroptera and cicadas. The objectives of this work were to identify and to describe attack symptoms of Cephisus siccifolius (Walker 1851) (Hemiptera: Aphrophoridae) on eucalyptus trees in a stand of 25.77 hectares in the State of Bahia, Brazil, where 99.3% of them were attacked by this spittlebug. Damage was more severe on branches and leaves. Tree death was, relatively, low while those cut showed 4.7 colonies of this spittlebug with 21.9 nymphs per colony. Cultural control with the removal of trees attacked was recommended.

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Calvo, F. J., A. Torres, E. J. González et M. B. Velázquez. « The potential of Dicyphus hesperus as a biological control agent of potato psyllid and sweetpotato whitefly in tomato ». Bulletin of Entomological Research 108, n^o 6 (8 février 2018) : 765–72. http://dx.doi.org/10.1017/s0007485318000020.

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AbstractThe potential of the mirid predator Dicyphus hesperus Knight (Heteroptera: Miridae) as a biological control agent of the sweetpotato whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) and the potato psyllid, Bactericera cockerelli Sulcer (Hemiptera: Psyllidae) in tomato was investigated in two experiments. The first experiment focused on the study of the life history traits of D. hesperus when fed on nymphs of the potato psyllid compared with the factitious prey Ephestia kuehniella Zeller (Lepidoptera: Pyrallidae) eggs. Although reproductive and development rates were higher on E. kuehniella eggs, the predator exhibited a good intrinsic rate of natural increase (rm) when feeding on B. cockerelli nymphs (rm: B. cockerelli 0.069 ± 0.0001; E. kuehniella 0.078 ± 0.0001), thus reflecting good potential as a biocontrol agent of this pest. The second experiment focused on the efficacy of D. hesperus as a biocontrol agent of the potato psyllid and the sweetpotato whitefly in a tomato greenhouse. Prey species were offered individually or together in a series of five treatments in greenhouse cages. Results showed that the predator was able to establish and suppress populations of both pests inhabiting tomato plants when pests occurred alone or together. Thus, D. hesperus was demonstrated to be a suitable biocontrol agent of these two important pests that could be used in tomato greenhouses.

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Afun, J. V. K., D. E. Johnson et A. Russell-Smith. « Weeds and natural enemy regulation of insect pests in upland rice ; a case study from West Africa ». Bulletin of Entomological Research 89, n^o 5 (mai 1999) : 391–402. http://dx.doi.org/10.1017/s0007485399000528.

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AbstractEffects of five weed management regimes on abundance of weeds, insect pests, generalist predators and on pest damage and rice yield were investigated in upland rice in Côte d‘Ivoire over two years. In both years there was a highly significant negative correlation between weed biomass and grain yield across all treatments. Only two pest insect groups,Nephotettixspp. (Cicadellidae) and seed sucking Heteroptera, were consistently more abundant in unweeded plots and had a consistent significant positive correlation between abundance and weed biomass across all seven treatments. These polyphagous groups may have been more dependent on resources provided by weeds than the other pests studied. However, pest damage was not affected by presence or absence of weeds, suggesting that populations were below a damage threshold. Ants were the most abundant predators in the rice canopy and were most abundant in unweeded treatments. Abundance of both ants and spiders was significantly positively correlated with weed biomass across treatments. Abundance of reduviid bugs was positively correlated with weed biomass only in 1995. Any benefits due to presence of weeds in the crop were completely outweighed by loss of crop yield due to weed competition. However, if crop losses due to weeds were sufficiently reduced, it is possible that significant losses due to insect pests might emerge.

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Neimorovets, V. V. « DISTRIBUTION OF THE SUNN PESTS FROM THE GENUS EURYGASTER (HETEROPTERA : SCUTELLERIDAE) IN RUSSIA ». PLANT PROTECTION NEWS, n^o 4(102) (2019) : 36–48. http://dx.doi.org/10.31993/2308-6459-2019-4-102-36-48.

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Esenbekova, P. A., I. I. Temreshev, A. M. Kenzhegaliev, A. M. Tursynkulov et T. M. Dosmukhambetov. « TRUE BUGS (HEMIPTERA : HETEROPTERA) – ALFALFA PESTS (BARLEY, TRITICALE, WHEAT) OF «BAYSERKE-AGRO» LLP ». Izvestiâ Nacionalʹnoj akademii nauk Respubliki Kazahstan 2, n^o 50 (15 avril 2019) : 55–65. http://dx.doi.org/10.32014/2019.2224-526x.17.

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Rugholm Simonsen, Marie-Louise, Annie Enkegaard, Camilla Nordborg Bang et Lene Sigsgaard. « Anthocoris nemorum (Heteroptera : Anthocoridae) as predator of cabbage pests – voracity and prey preference ». Entomologica Fennica 21, n^o 1 (14 août 2019) : 12–18. http://dx.doi.org/10.33338/ef.84494.

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Laboratory experimentswere performed with adult female Anthocoris nemorum (Linnaeus) (Heteroptera: Anthocoridae) at 20°C ± 1°C, L16:D8, 60–70% RH to determine voracity and preference on cabbage aphids (Brevicoryne brassicae L.) (Hemiptera: Aphididae), diamondback moth larvae (Plutella xylostella L.) (Lepidoptera: Plutellidae) and Western flower thrips (Frankliniella occidentalis Pergande) (Thysanoptera: Thripidae) (model species for cabbage thrips (Thrips angusticeps Uzel) (Thysanoptera: Thripidae)). When offered individually, A. nemorum readily accepted all three species with no significant differences in consumption. When aphids and moth larvae were offered simultaneously, A. nemorum showed preference for the latter (numbers eaten and biomass consumed). When aphids and thrips were offered together, A. nemorum preferred thrips in terms of numbers eaten but preferred aphids in terms of biomass consumed. The results showed that A. nemorum is a voracious predator of B. brassicae, P. xylostella and F. occidentalis and can therefore be considered as a potential candidate for biological control in cabbage.

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Stonedahl, G. M., M. B. Malipatil et W. Houston. « A new mind (Heteroptera) pest of cashew in northern Australia ». Bulletin of Entomological Research 85, n^o 2 (juin 1995) : 275–78. http://dx.doi.org/10.1017/s0007485300034362.

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AbstractHelopeltis pernicialis, a new species of bryocorine Miridae, is described from northern Australia, where it has become established as a serious pest of cultivated cashews, Anacardium occidentale (Anacardiaceae). Information on the biology and pest status of the bug is provided from studies conducted near Darwin, Northern Territory.

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Haouas, D., H. Glida‐Gnidez, C. Hafsi, H. Nhaili et A. Matocq. « Nysius cymoides (Heteroptera, Lygaeidae), an emerging insect pest in Tunisia ». EPPO Bulletin 49, n^o 2 (5 juillet 2019) : 355–58. http://dx.doi.org/10.1111/epp.12568.

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Aldrich, J. R., J. E. Oliver, W. R. Lusby, J. P. Kochansky et J. A. Lockwood. « Pheromone strains of the Cosmopolitan pest,Nezara viridula (heteroptera : Pentatomidae) ». Journal of Experimental Zoology 244, n^o 1 (octobre 1987) : 171–75. http://dx.doi.org/10.1002/jez.1402440121.

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Larivière, M. C., et C. H. Wearing. « Orius vicinus(Ribaut) (Heteroptera : Anthocoridae), a predator of orchard pests new to New Zealand ». New Zealand Entomologist 17, n^o 1 (janvier 1994) : 17–21. http://dx.doi.org/10.1080/00779962.1994.9721980.

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Konjević, Aleksandra, Pero Štrbac, Dušan Petrić, Aleksandra Popović et Aleksandra Ignjatović-Ćupina. « Temperature-dependent Development Model of Pest Wheat Bugs Eurygaster and Aelia spp. (Heteroptera : Scutelleridae and Pentatomidae) ». Entomologia Generalis 35, n^o 2 (1 juillet 2014) : 87–102. http://dx.doi.org/10.1127/0171-8177/2014/0041.

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Koczor, Sándor, et Andrej Cokl. « Percussion signals of Lygus rugulipennis Poppius (Heteroptera : Miridae) ». Open Life Sciences 9, n^o 5 (1 mai 2014) : 543–49. http://dx.doi.org/10.2478/s11535-014-0285-2.

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AbstractThe European tarnished plant bug (Lygus rugulipennis Poppius) is among the most serious pests in the family Miridae, and therefore there is increasing interest in understanding the behaviour of this species. In the present study, laboratory recordings were taken using a laser vibrometer on adult males and females to ascertain whether acoustic signals are involved in intraspecific communication. Recordings were both carried out on plant and loudspeaker membrane substrates. Males and females emitted vibratory signals and the present results indicate that these signals are important during courtship. The basic signal characteristics measured were the dominant frequency, pulse duration, repetition time and number of pulses per group within the signal. Male and female signals did not differ in respect to any of these characteristics. Plant recorded signals were longer because of different mechanical properties of substrates. Additionally, the high frequency components were attenuated due to the low-pass filtering properties of plants. As this is the first study on vibratory communication of the European tarnished plant bug, we believe these findings may contribute considerably to the better understanding of the mating behavior of this important pest species.

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Vladimír, Hemala, et Kment Petr. « First record of Halyomorpha halys and mass occurrence of Nezara viridula in Slovakia (Hemiptera : Heteroptera : Pentatomidae) ». Plant Protection Science 53, No. 4 (30 août 2017) : 247–53. http://dx.doi.org/10.17221/166/2016-pps.

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The brown marmorated stink bug, Halyomorpha halys Stål, 1855 (Hemiptera: Heteroptera: Pentatomidae), is recorded from Slovakia for the first time based on a 5<sup>th</sup> instar larva collected in the town of Štúrovo, Slovakia. The current distribution, economic importance and biology of the species are briefly reviewed. During the visit to Štúrovo, a mass occurrence of adults and larvae of the southern green stink bug, Nezara viridula (Linnaeus, 1758) (Pentatomidae), so far captured in Slovakia in 2014 only as a single specimen, was also observed. This observation confirms the presence of N. viridula as an established species in southern Slovakia. Both species are important pests to a large number of crops (vegetables, fruit trees, decorative plants, etc.) and can cause considerable economic losses.

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Tursynkulov, A. M., Z. Amangeldikyzy, M. А. Gabdulov, I. I. Temreshev, A. M. Makezhanov et G. E. Kozhabaeva. « LABORATORY EVALUATION OF THE EFFECTIVENESS OF THE BIOLOGICAL DRUG ENTOLEK K PLANTECO® ON DIFFERENT SPECIES OF PEST INSECTS OF FODDER CROPS ». Bulletin of the Korkyt Ata Kyzylorda University 62, n^o 3 (2022) : 283–91. http://dx.doi.org/10.52081/bkaku.2022.v62.i3.103.

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The article presents the data on the results of laboratory tests of effectiveness of the biological drug Entolek K Planteco® on different species of insect pests of fodder crops. The authors used the following pest species as test-objects - imago of Eurydema ornata(Linnaeus, 1758) (Heteroptera, Pentatomidae), larvae of Tettigonia viridissima(Linnaeus, 1758) (Orthoptera, Tettigoniidae), larvae and adults of Anacanthotermes ahngerianus Jacobson, 1904 (Blattodea, Hodotermitidae), adults of Oxythyrea cinctella (Schaum, 1841) (Coleoptera, Scarabaeidae), caterpillars of Pieris rapae (Linnaeus, 1758) (Lepidoptera, Pieridae). Of the pest arthropods tested, the most resistant to the effects of Entolek K Planteco® were the adults of O. cinctella - the death of insects reached 100% in 15 minutes after treatment. The same resistance was shown by E. ornata. The larvae of T. viridissima showed average resistance - 7 minutes. A. ahngerianus and P. rapae were the most susceptible to the preparation - 99- 100% of insects died 5 minutes after treatment. This difference is largely due to the thickness of the chitinous cover of the insects used as test objects. Based on this, we can say that the Entolek K Planteco® can be used with the greatest effectiveness against insect pests with thin covers or in the younger age of larval stage when they are the least resistant. Also, it may be better used against agricultural pests with thick chitinous covers (beetles, adult bugs, etc.) by increasing the concentration. Based on the results of the studies, Planteco® Entolek K can be used against various pests, which are quite numerous on the crops of fodder crops. Analysis of the obtained results showed that after 7-15 minutes (depending on the pest species), the drug efficiency reaches 99-100%. This efficiency is good enough for a biological preparation and will allow to obtain organic products of fodder crops, and then livestock, containing no toxic residues.

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Pal, Amartya, Swetapadma Dash, Susmita Khanra et Devanshu Gupta. « Diversity and distribution of predatory stink bugs from India and their role in insect pest management (Hemiptera : Heteroptera : Pentatomidae : Asopinae ». International Journal of Zoology and Applied Biosciences 8, n^o 2 (28 mars 2023) : 29–35. http://dx.doi.org/10.55126/ijzab.2023.v08.i02.004.

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Asopinae is the only subfamily among Pentatomidae (Hemiptera: Heteroptera), whose members exhibit predatory feeding habits. They are called predatory stink bugs as they mainly predate on several soft-bodied arthropods. In this study, we compile a consolidated list of the subfamily Asopinae from India, covering 30 species in 17 genera, supplemented with prey information of selected species based on our observations and literature records.

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Mame Diarra KANE, Adiouma Georges Robert Jacques SARR, Mouhamadou Moustapha NDIAYE, Abdoul Aziz NIANG et Mbacké SEMBENE. « Abundance of pests of flood recession maize (Zea mays L.) in the Senegal River Valley ». GSC Biological and Pharmaceutical Sciences 23, n^o 2 (30 mai 2023) : 006–19. http://dx.doi.org/10.30574/gscbps.2023.23.2.0159.

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Maize, a foodstuff of economic and nutritional importance, is grown in Senegal in four regions such as the Senegal River valley, especially in the cold season. However, maize is subject to many pests. In view of the damage they cause, a knowledge of the entomofauna remains interesting. The abundance of the entomofauna of floodplain maize in the river valley, particularly in Dembancané, was determined. Thus, a population of 590 individuals was collected. Consequently, the absolute and relative abundance and frequency of occurrence or Constance were evaluated. The Kruskall-wallis test was performed followed by the DUNN test. Following this a Fisher test and a Chi-2 test were performed. From the beginning of flowering to the beginning of ripening, the study covered 58 species of insects and 5 species of spiders belonging to eight orders. The absolute abundance of species varies according to the plot and the development phase. In addition, Heteroptera are the most represented with 35.46% followed by Coleoptera and Orthoptera with 26.24%. The contribution of each species in this study area differs as a result of the different values found of relative abundance and Constance.

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Ferran, A., A. Rortais, J. C. Malausa, J. Gambier et M. Lambin. « Ovipositional behaviour of Macrolophus caliginosus (Heteroptera : Miridae) on tobacco leaves ». Bulletin of Entomological Research 86, n^o 2 (avril 1996) : 123–28. http://dx.doi.org/10.1017/s0007485300052354.

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AbstractThe ovipositional behaviour of the mirid predator Macrolophus caliginosus Wagner, a potential biological control agent of glasshouse pests, was studied in detail using a modified video camera technique. In the laboratory, females laid their eggs in the leaves of tobacco plants. They remained generally motionless on the main veins of the leaves, raised their body, folded the rostrum towards the thorax and extended their ovipositor when selecting a site in which to oviposit. The ovipositor was inserted into the plant tissue by a downward and forward thrust of the body and contractions of the abdominal muscles. After a period of immobility, the ovipositor was retracted and the insect's body and organs returned to their initial positions. This behaviour was preceded and followed by extensive rostral exploration of the oviposition site. In most females the same area was explored before and after egg-laying and the ovipositor was inserted approximately in the middle of the selected area. The sequence and pattern of ovipositional behaviour varied between females.

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Esenbekova, P. A., I. I. Temreshev, A. M. Kenzhegaliev, A. M. Tursynkulov et T. M. Dosmukhambetov. « TRUE BUGS (HEMIPTERA : HETEROPTERA) - PESTS OF GRAIN CROPS (BARLEY, TRITICALE, WHEAT) OF «BAYSERKE-AGRO» LLP ». Izvestiâ Nacionalʹnoj akademii nauk Respubliki Kazahstan 2, n^o 50 (15 avril 2019) : 21–30. http://dx.doi.org/10.32014/2019.2224-526x.12.

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Stonedahl, Gary M. « Taxonomy of AfricanEurystylus(Heteroptera : Miridae), with a review of their status as pests of sorghum ». Bulletin of Entomological Research 85, n^o 1 (mars 1995) : 135–56. http://dx.doi.org/10.1017/s0007485300052093.

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AbstractThe African species ofEurystylusare revised and their status as pests of important agricultural crops is reviewed. A key is provided for the 12 recognized species, one of which,E. lestoni, is described as new. A diagnosis and description are provided for each species, as well as illustrations of diagnostic taxonomic characters and information on host-plant associations and distribution. Lectotype designations are made for eight nominal species ofEurystylusand two species are removed from the genus. The following new synonymies are established:E. annulipes(Poppius)=E. annulipes impunctatus(Poppius),syn. n.;E. bellevoyei(Reuter)=E. parvulus(Reuter),syn. n.,E. occidentalsWagner,syn. n.,E. gallouedeciVilliers,syn. n.andE. argenticepsOdhiambo,syn. n.;E. lineaticollisPoppius=E. pallidiventrisPoppius,syn. n.andE. mutabilisBergoth,syn. n.;E. oldiPoppius=E. kivuensisSchouteden,syn. n.,E. risbeciSchouteden,syn. n.,E. phaiopterusOdhiambo,syn. n.,E. immaculatusOdhiambo,syn. n.andE. bilqisLinnavuori & Al-Safadi,syn. n.Two species are removed from the genusEurystylus(E. sobrius(Walker)=Plesiocapsus sobrius(Walker),comb. n.and E.sericeus(Walker)=Proboscidocoris sericeus(Walker),comb. n.) and one species,E. rufocunealisPoppius, is assigned the status ofnomen dubium.

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Montemayor, S. I., P. M. Dellapé et M. C. Melo. « Predicting the potential invasion suitability of regions to cassava lacebug pests (Heteroptera : Tingidae : Vatiga spp.) ». Bulletin of Entomological Research 105, n^o 2 (19 décembre 2014) : 173–81. http://dx.doi.org/10.1017/s0007485314000856.

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AbstractCassava (Manihot esculenta Crantz) is one of the most important staple crops for small farmers in the tropics, feeding about 800 million people worldwide. It is currently cultivated in South and Central America, Africa and Asia. The genus Vatiga is widespread throughout the Neotropical region. Its species are sympatric and feed exclusively on cassava. The main objectives of this paper are: (1) to assess the potential distribution of Vatiga, one of the most relevant pests of cassava; (2) to project the resulting models onto the world; (3) to recognize areas with suitable and optimal climates (and thus, high probability) for future colonization, and (4) to compare this model with the harvested area of cassava analyzing the climatic variables required by both the host and the pest species. Species distribution models were built using Maxent (v3.3.3k) with bioclimatic variables from the WorldClim database in 2.5 arc min resolution across the globe. Our model shows that Vatiga has the potential to expand its current distribution into other suitable areas, and could invade other regions where cassava is already cultivated, e.g., Central Africa and Asia. Considering the results and the high host specificity of Vatiga, its recent appearance in Réunion Island (Africa) poses a serious threat, as nearby areas are potentially suitable for invasion and could serve as dispersal routes enabling Vatiga to reach the continent. The present work may help prevention or early detection of Vatiga spp. in areas where cassava is grown.

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Aldrich, Jeffrey R., Jocelyn G. Millar, Antônio R. Panizzi et Mark M. Feldlaufer. « True Bugs (Heteroptera) : Chemical Ecology of Invasive and Emerging Pest Species ». Psyche : A Journal of Entomology 2012 (2012) : 1–2. http://dx.doi.org/10.1155/2012/925823.

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Perdikis, D., A. Fantinou et D. Lykouressis. « Enhancing pest control in annual crops by conservation of predatory Heteroptera ». Biological Control 59, n^o 1 (octobre 2011) : 13–21. http://dx.doi.org/10.1016/j.biocontrol.2011.03.014.

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Melnichuk, Fedir, Svitlana Alekseeva, Oleksandra Hordiienko, Oleksii Nychyporuk et Andrii Borysenko. « Influence of irrigation on the Sunn pest Eurygaster integriceps Put. (Insecta : Heteroptera) in the Central Forest-Steppe of Ukraine ». Ecological Questions 34, n^o 2 (1 mars 2023) : 1–11. http://dx.doi.org/10.12775/eq.2023.022.

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The aim of the research is to establish the influence of watering on the phenological and biological features of winter wheat pests development, in particular Sunn pests. Trials were conducted on winter wheat crops under sprinkler irrigation in 2015-2020 in conditions of the Central Forest-Steppe of Ukraine. The size of the experimental plots in the field experiments was 50 m2 (10.4x4.8 m) at the 4 times replication. The allocation of plots was randomized. The average numbers of Sunn pest nymphs in 2015-2020 were 0.7-2.7 exemplars/m² on non-irrigated winter wheat crops and 0.8-3.8 exemplars/m² on irrigated. The share of the factor “presence of irrigation” that impacts on the number of Sunn pests reaches 80.2%. The sums of degree-days necessary for the beginning of different development stages of this phytophagous were calculated. The stage of the revival of Sunn pest nymphs began in mid-May – the first decade of June, which coincided with the phases of development of winter wheat: the end of flowering – soft dough ripening of the grain. The sum of degree-days required for the beginning of this stage was 177.8-233.8°C without irrigation, while in sprinkler irrigation conditions – 275.5-349.1°C. For the beginning of the transformation of the fifth instar nymphs into adults, the required sum of degree-days was 410.5-481.5°C on the non-irrigated crops and 545.7-630.4°C – under conditions of irrigation. Clarifying the sum of degree-days required for different stages of Sunn pest development will allow for predicting the terms of protective measures against this pest in the field conditions under irrigation.

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Lam, Truong Xuan, Nguyen Thi Phuong Lien et Nguyen Quang Cuong. « The functional response and predatory ability of the reduviid Coranus fuscipennis Reuter (Heteroptera : Reduviidae)) fed on the rice meal moth Corcyra cephalonica (Stainton) ». Vietnam Journal of Biotechnology 18, n^o 2 (3 novembre 2020) : 265–72. http://dx.doi.org/10.15625/1811-4989/18/2/14948.

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The reduviid Coranus fuscipennis Reuter (Heteroptera: Reduviidae) is an important predator for biological control the pests of vegetables in Vietnam. The functional response of the 2nd, 3rd, 4th, 5th nymphal instars and adult male and female of the predator C. fuscipennis to the larvae of rice meal moth Corcyra cephalonica (Stainton) (Lepidoptera: Pyralidae) was evaluated in laboratory conditions (temperature 30±2ºC; relative humidity 75±5%; and 14:10 h Light:Dark). The results show that the nymph and adult of C. fuscipennis responded to different densities of prey. They killed more number of prey at higher prey densities and less prey at lower prey densities that produced a curve linear type II functional response (Holling 1959). The maximum consumption was always found restricted when rearing the C. fuscipennis at high prey densities. The relationship between the predation rate of the C. fuscipennis and the prey densities was negative correlation (R is between 0.70 and 0.98), but between the number prey killed and the prey density is positive correlation. The searching time prey of the C. fuscipennis decreased when the prey densities increased that was confirmed by the negative correlation (R between 0.85 and 0.98). The reduviid C. fuscipennis bred by the C. cephalonica in laboratory and they can use for biological control some pests of vegetables (P rapae, S. litura and P. xylostella) in Vietnam.

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Barta, Marek, et Tomáš Bibeň. « Stephanitis takeyai and S. rhododendri (Heteroptera : Tingidae) in Slovakia : first record and economic importance ». Journal of Plant Protection Research 56, n^o 2 (1 avril 2016) : 193–98. http://dx.doi.org/10.1515/jppr-2016-0022.

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Abstract This is the first report on the occurrence of andromeda lace bug, Stephanitis (Stephanitis) takeyai Drake and Maa, 1955, and rhododendron lace bug, Stephanitis (Stephanitis) rhododendri Horvath, 1905, in Slovakia. Syntopic colonies of both species were found on rhododendron shrubs (Rhododendron sp.) in south-western Slovakia in 2015. The feeding of the lace bugs resulted in damage to infested rhododendrons. Leaves turned yellow and brown, prematurely dropped what led to continuous drying up of twigs and the whole plants. Details on morphology of adult stages of the two species, description of damage symptoms and economic importance of these pests are presented and discussed.

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