Artículos de revistas: "Sucking pests"

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V, Vijayasree, Nalinakumari T y Naseemabeevi S. "Bioecology and Seasonal Abundance of Sucking Pests Infesting Coccinia". Madras Agricultural Journal 99, December (2012): 829–31. http://dx.doi.org/10.29321/maj.10.100205.

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A survey was carried out at the Instructional Farm, College of Agriculture, Vellayani and nearby locations in Thiruvananthapuram, Kerala during 2006-2007 to assess the seasonal abundance of sucking pests infesting coccinia. The dominant sucking pests were scale insect, Saissetia hemispherica (Targ.) and aphid, Aphis spiraecola Patch. The minor sucking pests recorded were leaf footed bug, Leptoglossus australis F. and pentatomid bug, Aspongopus obscurus F. Very low infestation of green stink bug, Nezara viridula Linn. and mealy bug, Ferrisia virgata (Ckll.) was also observed. Due to desapping activity of these pests, the vigour of the plant was reduced. Seasonal occurrence of the pests showed higher population and more damage in summer than rainy season. Correlation studies revealed strong positive correlation between maximum temperature and population of the pests and extent of damage whereas rainfall had significant negative relationship with them.

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Sattar, Muzammil y Muhammad Sarwar. "Management of Sucking Pests of early Season Cotton by Application of different Seed and Soil Insecticides in Pakistan". JOURNAL OF NANOSCOPE (JN) 3, n.º 1 (25 de junio de 2022): 37–46. http://dx.doi.org/10.52700/jn.v3i1.54.

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Cotton is cash crop of Pakistan and sucking insect pests are serious issue especially in early cotton season. To cope with the issue, a field experiment was conducted to investigate the post emergence effectiveness of two seed and two soil applied insecticides on populations’ development of sucking insect pests in cotton. The seed applied insecticides i.e. Imidacloprid (Confidor 70 WS) and Thiamethoxam (Actara 70 WS) were applied to the seed before sowing. Two granular insecticides i.e. Aldicarb (Temik 10 G) and Carbaryl (Sevin 10 D) were applied in furrows with a modified applicator that was calibrated to deliver the desired rate. The results showed that all the tested insecticides were very effective in controlling the targeted sucking insect pests i.e. thrips, whiteflies and jassids as compared to untreated cotton. Conversely, the seed applied insecticides i.e. Imidacloprid and Thiamethoxam showed more effectiveness compared to soil applied granular insecticides i.e. Aldicarb and Carbaryl in reducing sucking pests’ populations. Such systemic insecticides applied as treated seed can be present in sufficient quantity in germinating plants leading to toxicity to pests, and helpful for safety of natural enemies. The population trends of the three principal sucking insect pests namely thrip, whitefly and jassid were varied significantly over the study months thereby indicating that the population build up was favoured by certain factors. Consequently, the use of seed applied insecticides can be a major component to put into practice in the integrated pest management technology of cotton.

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KUMAR, RISHI, D. MONGA, MUKESH NITHARWAL, DINESH SWAMI y SATNAM SINGH. "Incidence of non-target pest species and validation of IPM strategies in Bt cotton hybrids deployed with different events of cry genes". Indian Journal of Agricultural Sciences 85, n.º 11 (17 de noviembre de 2015): 1448–54. http://dx.doi.org/10.56093/ijas.v85i11.53695.

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Cotton cultivars incorporated with different events of Cry proteins were evaluated for the incidence of sucking insect pests and abundance of predators under unprotected conditions during the years, 2009 and 2010. Among the sucking pests, whitefly, leafhopper and thrip were the major pests and there was no difference in the abundance of sucking pests among different hybrids. An integrated pest management (IPM) module based on use of eco-friendly strategies was developed and evaluated for transgenic cotton cultivars carrying different events including non-Bt cotton during 2010 and 2011 and was compared with the recommended regional package of practices (RPP) involving use of selective insecticides for sucking insect pests and bollworms. Results indicated low population of leafhopper, thrips and whitefly in IPM as compared to RPP. In addition, the cotton hybrids managed by IPM practices supported higher abundance of natural enemies. The incidence of cotton leaf curl disease (CLCuD) was also less in IPM as compared to RPP module. No bollworm incidence was recorded in any of transgenic cotton hybrid in either of the modules; however IPM and RPP with non-Bt hybrid showed rosette flowers and green boll damage due to pink bollworm, which was less in IPM as compared to RPP. IPM module resulted in low cost of insecticidal sprays and increase in C: B ratio compared to RPP. Furthermore, as the hybrids carrying different events did not differ significantly for the incidence of sucking pests, the IPM module developed was found effective for all hybrids including non Bt cotton hybrid with some revision in the light of bollworm incidence.

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Wari, David, Kazumu Kuramitsu y Nickolas G. Kavallieratos. "Sap-Sucking Pests; They Do Matter". Insects 12, n.º 4 (19 de abril de 2021): 363. http://dx.doi.org/10.3390/insects12040363.

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Srinivasnaik, S., M. Suganthy, S. Mohan Kumar y V. Jegadeeswari. "Survey, documentation and identification of entomofauna of cocoa, Theobroma cacao L. in major cocoa growing regions of South India". Journal of Applied and Natural Science 8, n.º 3 (1 de septiembre de 2016): 1444–51. http://dx.doi.org/10.31018/jans.v8i3.980.

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Survey, monitoring and documentation of entomofauna of cocoa was carried out in three cocoa growing states viz., Tamil Nadu, Kerala and Andhra Pradesh during 2014-2015. Results revealed that a total number of 23 species of insect pests and 13 species of natural enemies were documented and identified. Among the insect pests, 14, 2 and 7 species were sucking pests, borers and defoliators, respectively. Among the natural enemies, 7 species of predators and 6 species of parasitoids were documented and identified on different insect pests of cocoa. Among the insect pests, sucking pests were found to be predominant and maximum number of entomofauna were recorded in major coco growing areas of Tamil Nadu. From the results it was concluded that the list of entomofauna documented can enhance the knowledge on diversity of the entomofauna associated with cocoa in three different cocoa growing states. Sucking pests were found to be predominant and caused huge yield loss in Tamil Nadu and Kerala. While in Andhra Pradesh pod borer and bark eating caterpillar were found to be predominant causing severe yield loss. This information provides a base for development of location specific Integrated Pest Management module.

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Vonzun, Messmer, Boller, Shrivas, Patil y Riar. "Extent of Bollworm and Sucking Pest Damage on Modern and Traditional Cotton Species and Potential for Breeding in Organic Cotton". Sustainability 11, n.º 22 (12 de noviembre de 2019): 6353. http://dx.doi.org/10.3390/su11226353.

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Resistance against cotton bollworm is one of the main arguments for the use of genetically modified (GM) Bt cotton around the globe. The use of GM is prohibited in organic systems and thus the remunerative value of organic cotton cultivation depends on effective bollworm control. In this study, we investigated the extent of bollworm and sucking pest damage in 68 different hybrid and varietal lines of Gossypium hirsutum and varietal lines of G. arboreum at two different locations with contrasting soil fertility and water dynamics. The damage potential of bollworms was assessed from open capsules at two time points. Sucking pests were assessed at three time points using a scoring method. G. arboreum varietal lines and G. hirsutum hybrids were on average significantly more tolerant than G. hirsutum varietal lines to bollworm under fertile and irrigated situations. For sucking pests, the G. arboreum varietal lines were clearly more tolerant than G. hirsutum hybrids and varietal lines. Since, recently, pink bollworm (Pectinophora gossypiella) became resistant against Bt cotton and pressure of sucking pests severely increased, screening of genetic resources and systems-based cotton breeding for bollworm and sucking pest tolerance will improve sustainability of organic and conventional cotton production.

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Rajasekhar, N., P. Venkata Subbaiah, P. N. Siva Prasad, M. Raja Narasimha y I. Venkata Reddy. "Study on the Incidence of Sucking Pests and Pink Bollworm in Cotton". Journal of Experimental Agriculture International 45, n.º 7 (19 de abril de 2023): 18–25. http://dx.doi.org/10.9734/jeai/2023/v45i72128.

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Sucking pests and pink bollworm are serious pest of cotton one after the other in India by causing serious yield losess. The present investigation was carried out in three major cotton growing mandals of NTR district to understand the level of pest incidence in Bt cotton during Kharif, 2022-23 on regular interval. Among the sucking pests only thrips population recorded 32.26 no/3 leaves and crossed the ETL at 45 DAS. Remaining sucking pests such as Leafhopper, whitefly and aphid did not crossed ETL during crop growth period and highest incidence of 5.92, 4.04 and 27.14 no/3 leaves was recorded respectively at 45, 60 and 120 DAS. Whereas pink bollworm recorded 23.10% rosette flowers, 44.04% boll damage in Bheemavaram village of Vastavai mandal and 40.83% locule damage in Konakanchi village of Penuganchiprolu mandal.

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Panickar, Bindu, M. P. Patel y R. M. Patel. "Impact of Date of Sowing and Weather Parameters on Insect Pests Infesting Summer Mungbean". Environment and Ecology 41, n.º 4C (diciembre de 2023): 2832–37. http://dx.doi.org/10.60151/envec/hygf4397.

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An experiment was conducted at Pulses Research Station, SDAU, Sardarkrushinagar during summer 2021 and 2022 to find out the insect pests attacking mungbean crop sowing at different dates to determine the optimum date(s) of sowing. It is seen that the incidence and population fluctuation of various insect pests was very much dependent on the prevailed climatic conditions of the cropping season. Study on the impact of date of sowing on sucking pests revealed that the sucking pest populations of whitefly, leafhopper and thrips were significantly high during the crop sown on February 15 and March 8 during both years, and high pod borer damage and low yield were also recorded on this date of sowing. Sucking pest population and percent pod borer damage were comparatively low on the date of sowing on February 26th, and the highest yield was also recorded on this date of sowing. The last week of February is advisable for sowing summer mungbean to get a higher yield and the lowest sucking pest and pod borer populations

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Mensah, Robert K., Peter C. Gregg, Alice P. Del Socorro, Christopher J. Moore, Anthony J. Hawes y Nick Watts. "Integrated pest management in cotton: exploiting behaviour-modifying (semiochemical) compounds for managing cotton pests". Crop and Pasture Science 64, n.º 8 (2013): 763. http://dx.doi.org/10.1071/cp13060.

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We review here research on semiochemicals for cotton pest management carried out in successive Cotton Co-operative Research Centres from 1998 to 2012. Australian cotton is now dominated by transgenic (Bt) varieties, which provide a strong platform for integrated pest management of key pests such as Helicoverpa spp., but new technologies are required to manage the development of resistance in Helicoverpa spp. to transgenic cotton and the problems posed by emerging and secondary pests, especially sucking insects. A long-range attractant for Helicoverpa moths, based on plant volatiles, has been commercialised as Magnet®. The product has substantial area-wide impacts on moth populations, and only limited effects on beneficial insects. Potential roles are being investigated for this product in resistance management of Helicoverpa spp. on transgenic cotton. Short-range, non-volatile compounds on organ surfaces of plants that do not support development of Helicoverpa spp. have been identified; these compounds deter feeding or oviposition, or are toxic to insect pests. One such product, Sero X®, is effective on Helicoverpa spp. and sucking pests such as whiteflies (Bemisia tabaci), green mirids (Creontiades dilutus), and other hemipteran insects, and is in the advanced stages of commercialisation.

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10

Ghimire, Anup. "A REVIEW ON INTEGRATED MANAGEMENT OF COTTON AND SUGARCANE PEST". i TECH MAG 5 (3 de enero de 2023): 16–21. http://dx.doi.org/10.26480/itechmag.05.2023.16.21.

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Various insect pests can damage crops to different extents, reducing both their quality and quantity. Cotton and sugarcane are particularly vulnerable to sucking complex pests and borer complex pests, which cause damage in different ways. Complex pest sucking sap from delicate plant components, while borer complex pests bore into the crop. These pests have the potential to cause significant damage to the agricultural sector, leading to a considerable loss in yield and quality. The haphazard use of insecticides and pesticides to manage these pests has become a global problem, resulting in harmful effects on human health, plant systems, and the environment. To regulate pest populations, different integrated pest management techniques are followed, including physical, mechanical, cultural, and biological methods. These strategies, which are both sustainable and environmentally sound, attempt to keep pest populations below the economic threshold level. This paper gives an introduction to the invasive pest, biology, lifecycle, and integrated management of cotton and sugarcane pests.

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11

Zulfiqar, Sharon y Muhammad Faheem Malik. "Neonicotinoids and sucking insect-pests: A review". Farming and Management 2, n.º 1 (2017): 11. http://dx.doi.org/10.5958/2456-8724.2017.00002.9.

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Murzina, M. I. "PREVALENCE OF SUCKING PESTS IN GRAPEVINE AGROCENOSIS". Russian Vine 21 (septiembre de 2022): 30–36. http://dx.doi.org/10.32904/2712-8245-2022-21-30-36.

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Тhe article presents data on the prevalence of sucking pests ‒ grape thrips, rose leafhopper, buffalo leafhopper during the growing season of grapevine plants in 2021. In recent years, an increase in the number and harmfulness of sucking pests of thrips and leafhoppers has been noted in the Rostov region, which is due to climate change, the weakening of organiza-tional and economic measures and agricultural practices (an increase in the number of waste lands and the spread of weeds on them). The research was carried out in the conditions of the experimental fields of the "Novocherkassk" and "Nizhenekundryuchensky" departments on the varieties Cvetochniy and Cabernet Severny. So, in the conditions of 2021, two generations of grapevine thrips, three generations of roseate cicadas and one generation of ceres-buffalo ci-cadas developed. In the course of monitoring studies, we found that the most widespread populations in the conditions of the vegetation period of 2021 were: the roseate cicada and the ceres-buffalo cicada, which were identified both in the conditions of the experimental field of the Novocherkassk branch (more South – Novocherkassk) so it is in the conditions of the experimental field of the "Nizh-nekundryuchenkso" department (more northern – Ust-Donetsk district). Planning and organiza-tion of plant protection should be based on the forecast of the phytosanitary state of the agro-cenosis, which is based on the monitoring of harmful sucking pests.

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13

Jeyakumar, P., R. K. Tanwar, Mangal Chand, Amar Singh, D. Monga y O. M. Bambawale. "PERFORMANCE OF BT COTTON AGAINST SUCKING PESTS". Journal of Biopesticides 01, n.º 02 (1 de diciembre de 2008): 223–25. http://dx.doi.org/10.57182/jbiopestic.1.2.223-225.

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ABSTRACT Studies were taken up to monitor the population of sucking pests as well as boll damage in commercially released Bt cotton entries. In the present study it was found that the jassid population was almost negligible (< one per three leaves) both in Bt as well as non Bt cotton hybrids. In five Bt cotton hybrids (JKCH 1947, RCH 317, NCEH 6, Ankur 2534 and MRC 6301) it was less than that of non Bt cotton hybrid. However, whitefly incidence was more in all Bt cotton hybrids than that of the non Bt cotton hybrid, which may be due to reduction in the spray of chemical insecticides or the negligible infestation of bollworms. The bollworm damage in the current experiments revealed almost nil damage to the bolls in Bt cotton compared to non Bt cotton hybrid. The seed cotton yield in 12 out of 13 Bt cotton hybrids were more than that of non Bt cotton hybrid. This reveals the superiority of Bt cotton hybrids in terms of yield.

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Khajuria, Shakti, A. K. Rai, B. S. Khadda, Raj Kumar y K. Lata. "Participatory analysis and evaluation of IPM practices against sucking pests of Bt cotton". International Journal of Agricultural and Applied Sciences 1, n.º 2 (30 de diciembre de 2020): 79–81. http://dx.doi.org/10.52804/ijaas2020.1212.

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Farmer’s participatory demonstrations were evaluated during kharif seasons of 2017-2018 and 2018-2019 at four villages of Panchmahal district, Gujarat to introduce IPM practice and to evaluate their effectiveness through demonstrations. Farmers identified several constraints of which, increased infestation of sucking insect pests viz., aphid (Aphis gossypii Glover), leaf hopper (Amrasca biguttula biguttula Ishida) and whitefly (Bemisia tabaci Gennadius) were the most important. IPM practice consisting of one spray application of Beauveria bassiana (2 x 108cfu) @ 4 g /l water, two spray applications of thiamethoxam 25 WG @ 0.01 per cent (0.4 g /l water) and one spray application of acephate 75 SP @ 0.075 per cent (1 g /l water) following threshold level (5 sucking pests /leaf) was found effective and economical for the management of sucking insect pests without any adverse effect on the natural enemies in Bt cotton. The application of this practice also resulted higher seed cotton yield as compared to farmers practice.

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B, Vinothkumar, Kuttalam S y Muralitharan V. "Influence of Spirotetramat 150 OD on the Incidence of Sucking Pests and Natural Enemies in Bt and Non-Bt Cotton". Madras Agricultural Journal 100, June (2013): 534–38. http://dx.doi.org/10.29321/maj.10.001351.

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The effect of spirotetramat 150 OD (insecticide) application on sucking pests (whitefly, aphids, thrips and mealy bug) and predators (spiders, coccinellids and chrysopids) was investigated in transgenic Bt cotton and non-transgenic cotton agroecosystems at Tamil Nadu Agricultural University, Coimbatore. Transgenic cotton did not cause changes in population of pests and did not reduce number of predators considerably. Pesticide application decreased number of whitefly, aphid and mealy bug population significantly on both transgenic and non-transgenic cotton plants. Reduction in the population of predators was observed immediately after application. Later the population of predators started increasing gradually. However the population was found to be less than that of untreated plots. The result revealed that, transgenic Bt cotton did not affect sucking pest populations and did not cause considerable reduction in predator populations. The performance of spirotetramat on the incidence of sucking pests and abundance of natural enemies was similar on both Bt and non Bt cotton.

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AMRENDER KUMAR, P.W. NEMADE, RAKHEE SHARMA, R. K TANWAR, C. CHATTOPADHYAY, S.S. WANJARI y T.H. RATHOD. "Statistical forewarning models for sucking pests of cotton in Maharashtra". Journal of Agrometeorology 20, n.º 1 (1 de marzo de 2018): 62–65. http://dx.doi.org/10.54386/jam.v20i1.507.

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Weather-based prediction models for pests (aphids, thrips and leafhoppers) in cotton crop were developed on various aspects viz., crop age at first appearance of pests and maximum population of pests at Akola (Maharashtra). Historical data from 1997-98 to 2010-11 on population of aphids, thrips and leafhoppers along with weekly weather data (two weeks before sowing) were considered fordevelopment of models and validated for the subsequent three years from 2011-12 to 2013-14. Weatherbased indices were generated, which were used as explanatory variables in development of models. The study reveals that the prediction for crop age at first appearance of pests, crop age at peak population of pests, and maximum population of pests can be issued at least two to three weeks in advance.

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17

Murzina, M. I. "PREVALENCE OF SUCKING PESTS IN CONDITIONS OF DON REGION". Russian Vine 26 (diciembre de 2023): 88–91. http://dx.doi.org/10.32904/2712-8245-2023-26-88-91.

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The article provides data on the number of sucking pests in 2022. The research was carried out in the conditions of Novocherkassk branch of the experimental field on the technical varie-ty Cvetochniy. Over the past decade, in the Rostov region, due to changes in climatic con-ditions, as well as with the appearance of a large number of lands overgrown with weeds, sucking pests have moved to grapevine plants. Subsequently, damage by sucking pests leads to a decrease in the yield and quality of grapes. The lack of precipitation in June 2022 and the high temperatures in July are factors that did not favorably affect the prevalence of cicada populations. Chemical treatments with insecti-cides were carried out in a timely manner. The effectiveness of insecticide Kinfos was proved against sucking pests of grapes in vineyards of Rostov region. In order to determine an eco-nomically significant threshold for the number of pest populations and make a decision on protective measures, it is advisable to systemat-ically monitor their prevalence. To predict the development of harmful organisms, it is neces-sary to take into account the meteorological conditions of winter and growing season. Ac-cording to the results of monitoring studies, it was found that in the conditions of 2022, three generations of the roseate cicada and one gen-eration of the humpback buffalo, two genera-tions of the grape thrips developed.

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Ghulam Ali, Bugti, Bin Wang, Na Cao y Feng Lin Hua. "Pathogenicity of Beauveria bassiana strain 202 against sap-sucking insect pests". Plant Protection Science 54, No. 2 (10 de febrero de 2018): 111–17. http://dx.doi.org/10.17221/45/2017-pps.

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An experimental trial was conducted to determine the pathogenicity of Beauveria bassiana strain 202 (Bb-202) against multiple targeted sucking insect species that are serious pests of crops and ornamental plants. The insect species, Myzus persicae Sulzer (Hemiptera: Aphididae), Jacobiasca formosana Paoli (Hemiptera: Cicadellidae), Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae), and Stephanitis nashi (Hemiptera: Tingidae) were exposed to conidia of B. bassiana at rates of 1.0 × 102, 3.5 × 103, 5 × 104, and 6.75 × 105 conidia/mm2 to determine the pathogenicity of B. bassiana. The fungal strain Bb-202 showed the highest pathogenicity to M. persicae and 100% corrected mortality observed in the treatments over 1.0 × 102 conidia/mm2, followed by the J. formosana with the final corrected mortality of 86.6, 94.4, and 97.4% after 10 days of fungal inoculation with 3.5 × 103, 5 × 104, and 6.75 × 105 conidia/mm2, respectively. The strain Bb-202 also showed good pathogenicity to B. tabaci and corrected mortalities of 77.9 and 81.1% were recorded when exposed to 5 × 104 and 6.75 × 105 conidia/mm2. Relatively weak pathogenicity was observed in S. nashi, in which the highest corrected mortality of 63.7% occurred at 6.75 × 105 conidia/mm2. Accordingly, the LC50 and LT50 values of concentrations 1 × 105, 1 × 106, 1 × 107, and 1 × 108 conidia/ml were calculated for M. persicae, J. formosana, B. tabaci, and S. nashi that were determined as 6.7 × 104, 1.3 × 106, 3.6 × 106, and 1.2 × 107 conidia/ml and LT50 was observed as 5.2~8.24, 5.1~6.6, 7.2~9.0, and 7.9~9.6 in days, respectively.

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Kozhevnikova, Alevtina Gregorovna. "Monitoring Of Sucking Pests Of Vegetable Crops From The (Auchenorrhyncha) Series Of Uzbekistan". American Journal of Agriculture and Biomedical Engineering 03, n.º 04 (17 de abril de 2021): 1–5. http://dx.doi.org/10.37547/tajabe/volume03issue04-01.

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The article presents the monitoring of sucking pests of vegetable crops of the families Aphrophoridae and Cicadellidae from the Auchenorrhyncha series, their sistematic position, food connections, harmfulness, and modern control measures are recommended.

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Syed, T. S., G. H. Abro ., R. D. Khuhro . y M. H. Dhauroo . "Relative Resistance of Cotton Varieties Against Sucking Pests". Pakistan Journal of Biological Sciences 6, n.º 14 (1 de julio de 2003): 1232–33. http://dx.doi.org/10.3923/pjbs.2003.1232.1233.

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Rajveer, Vijay Kumar Mishra, Deepika Chauhan, Gopi Ram Yadav y R. S. Bisht. "Population dynamics of major sucking pests of okra". Indian Journal of Entomology 80, n.º 3 (2018): 1035. http://dx.doi.org/10.5958/0974-8172.2018.00170.0.

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Srinivasnaik, S., M. Suganthy, V. Jegadeeswari y S. Mohan Kumar. "Seasonal abundance of major sucking pests of cocoa". Acta Horticulturae, n.º 1241 (junio de 2019): 531–36. http://dx.doi.org/10.17660/actahortic.2019.1241.78.

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N, Balakrishnan, Vinothkumar B y Sivasubramanian S. "Bioefficacy of Kinadongold against Sucking Pests of Cotton". Madras Agricultural Journal 97, January March (2010): 88–91. http://dx.doi.org/10.29321/maj.10.100353.

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Supervised field trials were conducted to evaluate Kinadongold (Phosphamidon 40% + imidacloprid 2% SP) as foliar application for its bioefficacy against sucking insects, phytotoxicity and effect on natural enemies on cotton in Tamil Nadu Agricultural University, Coimbatore. Two season field experiments on cotton revealed that the higher dose of Kinadongold (700 g ha-1) recorded 76.43, 73.28, 76.06 and 69.66 per cent reduction over untreated check for leafhoppers, thrips, aphids and whiteflies, respectively and it was followed by with on par Kinadongold (600 g ha-1), that recorded 74.02, 72.33, 74.34 and 66.77 per cent reduction over untreated check for leafhoppers, thrips, aphids and whiteflies, respectively. There was an initial setback in the population of natural enemies in the Kinadongold treated plots, but it started increasing gradually. Kinadongold did not cause any phytotoxic symptoms even up to a dose of 2400 g ha-1 on cotton.

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Wang, Wanwan, Pengyong Zhou, Xiaochang Mo, Lingfei Hu, Nuo Jin, Xia Chen, Zhuoxian Yu et al. "Induction of defense in cereals by 4-fluorophenoxyacetic acid suppresses insect pest populations and increases crop yields in the field". Proceedings of the National Academy of Sciences 117, n.º 22 (20 de mayo de 2020): 12017–28. http://dx.doi.org/10.1073/pnas.2003742117.

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Synthetic chemical elicitors, so called plant strengtheners, can protect plants from pests and pathogens. Most plant strengtheners act by modifying defense signaling pathways, and little is known about other mechanisms by which they may increase plant resistance. Moreover, whether plant strengtheners that enhance insect resistance actually enhance crop yields is often unclear. Here, we uncover how a mechanism by which 4-fluorophenoxyacetic acid (4-FPA) protects cereals from piercing-sucking insects and thereby increases rice yield in the field. Four-FPA does not stimulate hormonal signaling, but modulates the production of peroxidases, H2O2, and flavonoids and directly triggers the formation of flavonoid polymers. The increased deposition of phenolic polymers in rice parenchyma cells of 4-FPA-treated plants is associated with a decreased capacity of the white-backed planthopper (WBPH)Sogatella furciferato reach the plant phloem. We demonstrate that application of 4-PFA in the field enhances rice yield by reducing the abundance of, and damage caused by, insect pests. We demonstrate that 4-FPA also increases the resistance of other major cereals such as wheat and barley to piercing-sucking insect pests. This study unravels a mode of action by which plant strengtheners can suppress herbivores and increase crop yield. We postulate that this represents a conserved defense mechanism of plants against piercing-sucking insect pests, at least in cereals.

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Prof. T. V. Sathe, Prof T. V. Sathe, Dr Nishad T. Sathe, Dr Dattatray Ghodake y Dr Asawari Sathe. "Sucking insect pests and medicinal value of Tulsi Ocimum sanctum L. (Lamiaceae)". Indian Journal of Applied Research 4, n.º 3 (1 de octubre de 2011): 31–33. http://dx.doi.org/10.15373/2249555x/mar2014/102.

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Qureshi, S. A., D. J. Midmore, S. S. Syeda y D. J. Reid. "A comparison of alternative plant mixes for conservation bio-control by native beneficial arthropods in vegetable cropping systems in Queensland Australia". Bulletin of Entomological Research 100, n.º 1 (27 de marzo de 2009): 67–73. http://dx.doi.org/10.1017/s0007485309006774.

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AbstractCucurbit crops host a range of serious sap-sucking insect pests, including silverleaf whitefly (SLW) and aphids, which potentially represent considerable risk to the Australian horticulture industry. These pests are extremely polyphagous with a wide host range. Chemical control is made difficult due to resistance and pollution, and other side-effects are associated with insecticide use. Consequently, there is much interest in maximising the role of biological control in the management of these sap-sucking insect pests. This study aimed to evaluate companion cropping alongside cucurbit crops in a tropical setting as a means to increase the populations of beneficial insects and spiders so as to control the major sap-sucking insect pests. The population of beneficial and harmful insects, with a focus on SLW and aphids, and other invertebrates were sampled weekly on four different crops which could be used for habitat manipulation: Goodbug Mix (GBM; a proprietary seed mixture including self-sowing annual and perennial herbaceous flower species); lablab (Lablab purpureus L. Sweet); lucerne (Medicago sativa L.); and niger (Guizotia abyssinica (L.f.) Cass.). Lablab hosted the highest numbers of beneficial insects (larvae and adults of lacewing (Mallada signata (Schneider)), ladybird beetles (Coccinella transversalis Fabricius) and spiders) while GBM hosted the highest numbers of European bees (Apis mellifera Linnaeus) and spiders. Lucerne and niger showed little promise in hosting beneficial insects, but lucerne hosted significantly more spiders (double the numbers) than niger. Lucerne hosted sig-nificantly more of the harmful insect species of aphids (Aphis gossypii (Glover)) and Myzus persicae (Sulzer)) and heliothis (Heliothis armigera Hübner). Niger hosted significantly more vegetable weevils (Listroderes difficillis (Germar)) than the other three species. Therefore, lablab and GBM appear to be viable options to grow within cucurbits or as field boundary crops to attract and increase beneficial insects and spiders for the control of sap-sucking insect pests. Use of these bio-control strategies affords the opportunity to minimise pesticide usage and the risks associated with pollution.

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Grytsiuk, N. "The effectiveness of treaters against sucking pests in winter wheat agrocenosis". Interdepartmental Thematic Scientific Collection of Plant Protection and Quarantine, n.º 68 (20 de abril de 2023): 57–66. http://dx.doi.org/10.36495/1606-9773.2022.68.57-66.

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Goal. The assesment of the technological and economic efficiency of the insecticidal treaters of different chemical groups against autumn pests entomocomplex. Methods. Standard entomological methods were used to determine the number of insect pests in winter wheat agrocenosis. The leafhoppers and Schizaphis graminum count was carried out during autumn period (phase ВВСН 21—30) on the 7th, 14th day after germination. The leafhoppers were counted by using the method of accounting plots, and the Schizaphis graminum were counted by using the method of plant tests. Results. The phytophagous insects control by means of plant protection products is an effective method, but the result depends on the choice of the insecticides among a wide range of preparations. The results of the effects of treating on the dynamics of leafhoppers and Schizaphis graminum count in winter wheat agrocenosis have been presented. Entomological monitoring of the wheat field in the minds of the first-last-last field established that the biggest threat to winter wheat crops was cicadas and grasshoppers. The results of studying of modern insecticidal disinfactants against sucking pest density in a phase of ВВСН 21—30 have been presented. Conclusions. It has been established that the preparations Gaucho Plus 466 FS, TH, 0.5 l/t, Comando Grand, TH, 0.3 l/t and Cruizer 350 FS, 0.4 l/t were the most effective for the control of sucking phytophages of seedlings. The toxicity of winter wheat plants with insecticides under treatment contributed to higher qualitative and quantitative indicators of wheat yield as compared with a control variant. Under modern technologies of control, the growth and development intensity of sucking pests on winter wheat depends on climatic factors as well as on special protective measures on pests control on the first stages of crop organogenesis. The phytophageous insects spread and the harm under autumn control depend on timely monitoring when using the models of forecasting the number of sucking pests of the seedlings.

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Anuradha, M. y K. Divija. "Influence of Weather Parameters on the Population of Sucking Pests in Castor Genotypes". International Journal of Environment and Climate Change 13, n.º 10 (23 de agosto de 2023): 927–32. http://dx.doi.org/10.9734/ijecc/2023/v13i102737.

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Field experiment were carried out to study the seasonal incidence of leafhopper, Empoasca flavescens and thrips, Scirtothrips dorsalis and also the influence of weather parameters on the sucking pest population in five castor genotypes i.e., DCH-519, DCH-177, ICH-66, NBCH, PCH-111 during Rabi, 2020-21 at the research farm of RARS, Palem, PJTSAU, Telanagana. The pest population was recorded from 10 random plants and the incidence was observed from 48th standard meterological week and the peak population of sucking pests was observed during 6th to 8th standard week. PCH-111 and NBCH were observed to be more susceptible to sucking pests whereas DCH-519 was least susceptible. The observed pest population is correlated with weather parameters by taking the weather data from the agro meteorological observatory located at RARS, Palem. Correlation studies indicated that all the parameters except max temperature had a negative influence on thrips whereas temperature showed positive influence towards hoppers.

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Doolotkeldieva, Tinatin, Sagynych Tolonbekova y Saykal Bobusheva. "In vitro Screening of Natural Metarhizium spp. Isolates for Bioinsecticidal and Biofungicidal Activity". Journal of Advances in Microbiology 24, n.º 2 (28 de febrero de 2024): 103–21. http://dx.doi.org/10.9734/jamb/2024/v24i2799.

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Aims: To increase conidia production of local Metarhizium spp—strains by selecting the low-cost media to test obtained bioformulation against the sucking pests and fungal plant pathogens. Study Design: The phytophages like black bean aphid (Aphis fabae), a scale insect (Aspidiotus nerii) and spider mite (Tetranychus urticae) are economically essential pests in Kyrgyzstan. The current requirement is to use environmentally friendly protection to reduce the number of these pests. The entomopathogenic fungus from the Metarhizium genus was used to reduce harmful pests in vitro and in vivo experiments. Place and Duration of Study: Department of Plant Protection, Kyrgyz-Turkish Manas University between May 2021 and May 2023. Methodology: Natural Metarhizium spp. strains were isolated from dead insect bodies of the Lepidoptera and Apidae families. A laboratory bioassay was conducted to evaluate isolated Metarhizium spp.strains against nymphal stages and adults of sucking pests like A. fabae ((Blackfly), A.nerii (Scale insect) and T.urticae (Spider mite). The inhibitory effect of Metarhizium spp.against Fusarium oxysporum, Alternaria spp. and Rhizoctonia solani was detected using a dual culture technique. Results: The results of in vitro bioassay tests against sucking pests have revealed the LC50 and LT50 values of TLK-1 isolate. The LC50 of this isolate for A. fabae adults was 1 × 106 conidia\ mL-1; for A.nerii, it was lower - 7 × 105 conidia\ ml-1; while for adults T.urticae it was higher- 13 × 106 conidia \ ml-1. Such mortality occurred after 49.63 hours in adults of A. fabae (LT50), after 46.30 hours in A.nerii (LT50), and after 75.87 hours in deutonymph and adults of T. urticae (LT50). Three isolates, TLK-1, TLA-2 and BZТК1, have exhibited biofingicide activity in pathogen fungi like Fusarium oxysporum and Alternaria spp. Conclusion: The found isolates can be simultaneously used against pathogenic fungi, essential for developing inexpensive biological formulas based on these fungi.

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Barros, Emerson Cristi de, Rômulo Augusto Cotta Dângelo, Jose Augusto Amorim Silva do Sacramento, Paulo Sergio Taube y Sorrel Godinho Barbosa de Souza. "Impacts of Planting System, Plant Age, and Climatic Variables on Pests And Predators in Common Bean Fields". Journal of Agricultural Studies 10, n.º 3 (26 de mayo de 2022): 78. http://dx.doi.org/10.5296/jas.v10i3.19767.

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Understanding the environmental influences on insect pests and predator dynamics is essential for the development of integrated pest management strategies for common bean plants. This study aimed to determine the effects of the planting system, plant age, climatic variables, and predator populations on common bean pests under field conditions. Planting systems, plant age, climatic variables, and the abundance of insect pests and predators were evaluated under field conditions over two years in three planting seasons per year. A generalized linear mixed model (GLMM) was adjusted to quasi-Poisson and negative binomial distributions. Model selection was based on the Akaike information criterion. According to the selected model, chewing, sap-sucking, cell content-sucking, and boring insects were influenced by plant age, planting system, air temperature, rainfall, and relative humidity. Additionally, predators including spiders, beetles, ants, pirate bugs, and ladybugs were influenced by plant age, air temperature, rainfall, relative humidity, and abundance of insect pests on common bean plants. This information is essential for conservation biology programs and integrated pest management.

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Ghaffar, Hafsah. "ECOLOGICAL IMPACT OF PB-ROPES ON POPULATION OF THRIPS TABACI AND ITS NATURAL ENEMIES". Agricultural Sciences Journal 2, n.º 1 (25 de septiembre de 2021): 23–32. http://dx.doi.org/10.56520/asj.v2i1.36.

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Cotton is most important fiber crop of Pakistan. Cotton contributes 1.6% in GDP of Pakistan. The sucking and chewing insect pests attack on the cotton and cause yield reduction. Among sucking pests, Thrips tabaci is the major one. The study was conducted to observe the ecological impacts of PB ropes on population dynamics of T. tabaci as well as beneficial fauna on cotton. The study was conducted at MNS University of Agriculture Multan at experimental farm Multan on an area of 27 acres. The experimental plot was divided into 3 blocks and each block consisted of 3 acres. Cotton variety NIAB-878 was cultivated as test crop and data was recorded on weekly bases from 20 random selected plants in each sub-plot for sucking insect pests and 10 plants for beneficial insects. The results revealed that population of T. tabaci remained significantly lower in double application of PB-ropes in a season treated plots as compared to treatment i.e., one application of PB-ropes + insecticides, while higher population was recorded in untreated block, managed through use of pesticides. The study resulted that all recorded green lacewing and Geocoris were showed negative correlation with T. tabaci and kept its population at minimum level as compared with control.

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Akash, A., N. Manikanda Boopathi, R. Ravikesavan, A. Subramanian y K. Thirukumaran. "Identification of Contrasting Parents and Development of Mapping Population for Sucking Pest Resistance in Cotton". International Journal of Environment and Climate Change 13, n.º 10 (26 de septiembre de 2023): 4119–41. http://dx.doi.org/10.9734/ijecc/2023/v13i103089.

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The current study was conducted to identify the best parents with good agronomical features and contrasting characteristics for sucking pest resistance to develop a population that can be used for Quantitative Trait Loci mapping of resistance component traits. Initial attempts at this university have enabled to identify of five potential parents (viz., KC3, NDLH 1938, CO18, K12, and RG8) with improved sucking pest resistance and yield characters and they were crossed with the recently released high-yielding variety CO-17, which is also suitable for high-density planting. All these six parents were evaluated for fiber yield and quality traits besides anatomical characters such as trichomes density, length, width, and sharpness that confers sucking pest resistance and genotyped with 200 Simple Sequence Repeats markers that span the entire genome. Efforts have been dedicated to the careful selection of optimal parents, namely CO17 and KC3, each possessing distinct traits related to resistance against sucking pests and also fiber quality characters in addition. This strategic approach aims to combine their contrasting genetic components for sucking pest resistance, to develop a new generation of plants that exhibit heightened resilience to these types of pests. CIR139, a polymorphic SSR marker of these two parents was used to fix the true hybrids which were advanced to generate an F2 mapping population. This population is believed to be useful for QTL mapping of anatomical features that confer sucking pest resistance such as trichome length, density, breadth, and sharpness besides fiber yield and quality traits.

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Bauetdinov, Bakhtiyor Otebayevich y Fatima Arepbay Kizi Sultanbaevna. "Developmental Bioecology And Control Measures Of Sucking Pests In Wheat Biotope Of Karakalpakstan Agrobiocenosis". American Journal of Horticulture and Floriculture Research 03, n.º 02 (28 de febrero de 2021): 7–11. http://dx.doi.org/10.37547/tajhfr/volume03issue02-02.

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The article presents the results of research on the bioecology of development of sucking pests, damage caused by dominant species, in wheat grown in Karakalpak agrobiocenosis. Spreading and damage of wheat aphid, harmful bug and wheat thrips, which are the main types according to their spreading areas and damage, were determined and controlling actions were recommended.

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Halder, Jaydeep, Pratap A. Divekar y K. K. Pandey. "SYNTHESIS AND EVALUATION OF DIFFERENT PEST MANAGEMENT MODULES AGAINST VECTOR AND SUCKING PESTS OF BITTER GOURD". Indonesian Journal of Agricultural Science 23, n.º 1 (15 de agosto de 2022): 32. http://dx.doi.org/10.21082/ijas.v23n1.2022.p32-37.

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Bitter gourd, Momordica charantia Linn., is one of the most important traditional vegetable in India. Infestations of sucking pests especially jassid, and whitefly occurred thorough out the crop growth period in the region. For ecofriendly management, different pest management modules viz., bio-intensive, chemical, and integrated modules were evaluated against these sucking pests and compared under field conditions during 2019–2021. Among the three tested modules, the integrated pest management (IPM) comprised seed treatment with imidacloprid @ 5–10 g kg-1 of seed, installation of yellow sticky traps @ 25–30 ha-1, border crop with maize, spraying of azadirachtin 1500 ppm @ 10 ml L-1, thiamethoxam @ 1 g 3-1 L, imidacloprid @ 1 g 12-1 L, cyantraniliprole @ 1.8 ml L-1, neem oil (0.5%) + Lecanicillium lecanii @ 2.5 g L-1, and neem oil (0.5%) + Beauveria bassiana @ 2.5 g L-1 from 20 to 70 days after sowing at 10 days intervals each harboured lowest whiteflies population (0.63 per leaf) with maximum per cent reduction over control of 70.14. The number of predatory lady bird beetles and polyphagous spiders were also higher. The highest healthy fruit yields (171, 179, and 153 q ha-1) were recorded from the IPM module for three consecutive years (2019, 2020, and 2021, respectively). In terms of return, maximum net profit of ₹71,211 was obtained from the IPM module with the highest incremental cost-benefit ratio of 1:5.18. Therefore, the IPM module could be a viable ecofriendly option in the management of the sucking pests of bitter gourd, along with the conservation of natural enemies.

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Baker, M. A., A. H. Makhdum, M. Nasir, A. Imran, A. Ahmad y F. Tufail. "COMPARATIVE EFFICACY OF SYNTHETIC AND BOTANICAL INSECTICIDES AGAINST SUCKING INSECT PEST AND THEIR NATURAL ENEMIES ON COTTON CROP". Journal of Mountain Area Research 1 (27 de agosto de 2016): 1. http://dx.doi.org/10.53874/jmar.v1i0.6.

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The Synthetic and botanical insecticides are relatively safer for environment and beneficial insects. The study was conducted in Rahim Yar Khan during the cotton cropping season 2014 to evaluate the comparative efficacy of two Synthetic insecticides i.e. Nitenpyram (Jasper 10% SL) and Pyriproxyfen (Bruce 10.8% EC) and two botanical extracts of Calotropic procera and Azadirachta indica, against sucking insect pest complex of cotton and their natural enemies. Upon reaching economic thresholds, the recommended field doses of all the insecticides were applied on cotton cultivar MNH-886. Data against sucking pests and their natural enemies was recorded 24 hours prior to insecticidal application and then 24, 48, 72 and 96 hours after insecticidal application. Results revealed that Nitenpyram was much toxic against sucking pests followed by Pyriproxyfen as compared to two botanical extracts. On the other hand, the synthetic insecticides did not prove safer for natural enemies as compared to botanical extracts. It was concluded that as an Integrated Pest Management (IPM) strategy, botanical extracts can be used at low infestation levels so that ecosystem service of biological control may be sustained.

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Lee, Scott T., Chaoyang Li y Jeffrey A. Davis. "Predator-Pest Dynamics of Arthropods Residing in Louisiana Soybean Agroecosystems". Insects 13, n.º 2 (31 de enero de 2022): 154. http://dx.doi.org/10.3390/insects13020154.

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Over the past two decades, management practices within Louisiana soybean production have shifted. Successful application of an integrated pest management (IPM) strategy requires an understanding of how these changes have affected predator-pest dynamics. Surveys monitoring foliage-foraging arthropod populations in soybean took place across six locations within Louisiana over six years (2012–2014 and 2015–2018). Temporal associations of pest groups, defoliating and piercing-sucking, and predator groups relating to soybean phenology were observed. Additionally, soybean maturity groups (III, IV, and V) were also evaluated to delineate potential differences. Results indicated higher abundances of piercing-sucking pests compared to defoliating pests across both datasets (2012–2014 and 2015–2018). Pest groups were more abundant in later soybean reproductive periods, mainly attributed to Chrysodeixis includens and Piezodorus guildinii. Predator populations were mainly comprised of Araneae and Geocoridae throughout the survey periods. From 2015 to 2018, soybean growth had a significant effect on total predator abundance with more predators present at the pod-fill and soybean maturity stage. Correlations between total pest abundance and total predators exhibited a moderate positive linear relationship. Soybean maturity groups only influenced piercing-sucking pest abundance, with later maturing groups (IV and V) having higher numbers. Thus, control tools and tactics aimed at controlling late season pests should be modified to avoid reducing predator populations.

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37

Rusli Rustam y Ice S. Hutagalung. "¬UJI BEBERAPA KONSENTRASI BIJI PINANG (Areca catechu L.) UNTUK MENGENDALIKAN Helopeltis theivora". DINAMIKA PERTANIAN 37, n.º 2 (17 de enero de 2023): 141–48. http://dx.doi.org/10.25299/dp.2021.vol37(2).11867.

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Cocoa (Theobroma cacao L.) is a plantation commodity that plays an important role in Indonesia’s economic activities and is a potential foreign exchange earner. One of the biggest obstacles in growing cacao in Indonesia is the attack of the cocoa pod-sucking pests (Helopeltis theivora Waterhouse). The aim of this study is to obtain an effective concentration of betel nut to control the fruit-sucking pests (Helopeltis theivora Waterhouse) in cocoa plants in the laboratory. The research was conducted at the Plant Pest Laboratory and Experimental farm, Faculty of Agriculture, Riau University from August to October 2020. The treatment given was the administration of areca nut extract with the following concentrations: P0: 0 g.l-1 water, P1: 20 g.l-1 water, P2: 40 g.l-1 water, P3: 60 g.l-1 water, P4: 80 g.l-1 water, P5: 100 g.l-1 water and 20 experimental units were obtained. The results showed that the application of betel nut had a significant effect in controlling cocoa pod sucking pests (Helopeltis theivora Waterhouse). The application of areca nuts extract at a concentration of 60 g.l-1 of water was an effective concentration in controlling Helopeltis theivora Waterhouse with a mortality of 80% with an initial time of death of 10.50 hours after application and lethal time of 50 which is 33.00 hours after application.

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38

D H, LAKSHMIKANTHA, VEERANNA R, GURUPRASAD G S y BABU P. "Studies on population dynamics of major pests of okra". Journal of Farm Sciences 36, n.º 03 (10 de enero de 2024): 321–23. http://dx.doi.org/10.61475/jfs.2023.v36i3.18.

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Okra [Abelmoschus esculentus (L.) Moench] is known tobe infested by many insect pest among them the most important onesare sucking pests like aphids, leafhopper, whitefly and fruit borerslike Earias vitella and Helicoverpa armigera. Controlling these pestsis very much important to obtain good yield, hence knowledge aboutthese pest incidence needed for taking up management practices. Inthis context, okra was sown during last week of November (rabi2020-21) and observations were recorded at weekly interval. Peakincidence of aphid (23.44 aphids/3 leaves) and leafhopper (16.97leafhopper/3 leaves) noticed during last week of December, whitefly(12.70 whiteflies/3 leaves) during second week of March. Fruit borersduring third week of February and second week of March with percent fruit damage of 44.9 (Earias vitella) and 13.59 (Helicoverpaarmigera).Sucking pests incidence more up to 10th week old crop,there after the population declined. In case of fruit borers, theypersisted upto end of the season

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39

VIDYA, C. V. y HASEENA BHASKAR. "Scymnini (Coleoptera:Coccinellidae) associated with major sucking pests of Kerala". Journal of Biological Control 31, n.º 4 (6 de abril de 2018): 212. http://dx.doi.org/10.18311/jbc/2017/18618.

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40

Sujatha, B. y T. M. Bharpoda. "Evaluation of Insecticides against Sucking Pests Grown During Kharif". International Journal of Current Microbiology and Applied Sciences 6, n.º 10 (10 de octubre de 2017): 1258–68. http://dx.doi.org/10.20546/ijcmas.2017.610.150.

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41

Murugan, S. Bala y S. Arivudainambi. "Field efficacy of botanicals against sucking pests on Chilli". Annals of Plant Protection Sciences 29, n.º 3 (2021): 179–82. http://dx.doi.org/10.5958/0974-0163.2021.00038.0.

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42

Kaushal, Shruti, Pawan K. Sharma, P. C. Sharma y Manishkumar J. Joshi. "Efficacy of Natural Products on Sucking Pests of Okra". Indian Journal of Entomology 83, n.º 3 (2021): 388–90. http://dx.doi.org/10.5958/0974-8172.2020.00219.9.

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43

Yakuba, G. V. "Insecticide Lirum® against sucking pests of apple tree". Защита и карантин растений, n.º 5 (2021): 21. http://dx.doi.org/10.47528/1026-8634_2021_5_21.

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44

SHAIKH, A. A., J. B. BHUT y M. V. VARIYA. "Effectiveness of different insecticides against sucking pests in brinjal". INTERNATIONAL JOURNAL OF PLANT PROTECTION 7, n.º 2 (15 de octubre de 2014): 339–44. http://dx.doi.org/10.15740/has/ijpp/7.2/339-344.

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45

T, Anandmurthy, GM Parmar y Divyashree HJ. "Yield losses due to sucking pests in summer cowpea". International Journal of Chemical Studies 8, n.º 2 (1 de marzo de 2020): 81–84. http://dx.doi.org/10.22271/chemi.2020.v8.i2b.9596.

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46

Pawar, S. A., P. R. Zanwar, S. G. Lokare, R. P. Dongarjal y M. M. Sonkamble. "Efficacy of newer insecticides against sucking pests of Okra". Indian Journal of Entomology 78, n.º 3 (2016): 257. http://dx.doi.org/10.5958/0974-8172.2016.00068.7.

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47

Tonğa, Adil, Suna Çakmak, Kadri Şeker, Mefhar Gültekin Temiz y Ahmet Bayram. "cis-Jasmone treatments affect multiple sucking insect pests and associated predators in cotton". Entomologia Generalis 40, n.º 1 (31 de marzo de 2020): 49–61. http://dx.doi.org/10.1127/entomologia/2019/0771.

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48

Sulajmonov, O. A., A. A. Hakimov y G. T. Dusmurodova. "HARM OF SUITING CITRUS CROPS PEST". EurasianUnionScientists 10, n.º 5(74) (14 de junio de 2020): 31–33. http://dx.doi.org/10.31618/esu.2413-9335.2020.10.74.804.

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The article discusses the harm, biology and morphology of sucking pests of citrus crops. Citrus whitefly on citrus, in case of early settlement and high density, yield can be reduced up to 30%. It can give up to 3-4 generations. In the conditions of the Bukhara and Khorezm regions of Uzbekistan, citrus whitefly (Dialeurodes citri.) Can develop, which is distinguished by its smaller size and yellowish color.Citrus aphids One of the most common and dangerous pests of lemons and tangerines is aphids. It most often affects the plant during the period of active growth of young shoots, settling on them and quickly sucking juice from them. By this, it slows down its development; one can also observe that the leaves of citrus dry and fall, and young growth dries out

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49

Chandrayudu, E., K. Tejeswara Rao y P. B. Pradeep Kunar. "Stem application technique for sucking pest management in cotton at tribal area of Andhra Pradesh". INTERNATIONAL JOURNAL OF PLANT PROTECTION 13, n.º 2 (15 de octubre de 2020): 156–59. http://dx.doi.org/10.15740/has/ijpp/13.2/156-159.

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Cotton is one of the most important fibre and cash crop in tribal area at Visakhapatnam district of Andhra Pradesh and plays a major share in the agricultural economy of the country. Nearly 65 per cent of cotton area is under rainfed and mainly in the plain and High altitude tribal areas of the district. Sucking pests of leaf hopper, white fly, thrips, mealy bugs, mites, redcotton bugs and aphids are becoming more serious, inviting indiscriminate use of pesticides in Bt cotton growing areas. Sucking pest incidence was controlled by the stem application of systemic insecticides viz., monocrotophos 1:4 ratio at 20 days after sowing and imidacloprid 200 SL with 1:20 ratio at 40 and 60 days after sowing. Within three days of application the population of sucking pests was reduced. This technique is being demonstrated and documented for two years at 20 locations in tribal farmers fields of Visakhapatnam district. Stem application in cotton showed better performance by reducing sucking pests damage of aphids (1.89%), leaf hoppers (3.57%), white fly (5.86%), thrips (4.31%), mealy bugs (5.09%), red cotton bug (6.82%) and mite (8.31%) along with more number of bolls and kapas yield in demo plots when compared to the farmers practice aphids (16.16%), leaf hoppers (27.32%), white fly (37.29%), thrips (18.42%), mealy bugs (36.87%), red cotton bug (7.90%) and mite (25.43%). On an average both years cotton kapas yield (2111kg/ha) under Front Line Demonstrations (FLDs) were higher by 19.76 per cent as compared to farmer’s practices. Results from the study showed that farmers realized additional net income of Rs.17, 260 due to increased cotton kapas yield by 19.76 per cent with reduction of cost of cultivation by Rs.3300, it could be attributed in reduction of manual labour requirement for stem application and also increase in yield.

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Prasad, B. Ram. "Bio-efficacy of Sulfoxaflor and Other Insecticides Against Sucking Pests of Cotton". International Journal of Bio-resource and Stress Management 13, n.º 6 (30 de junio de 2022): 535–42. http://dx.doi.org/10.23910/1.2022.2824.

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The field trials were conducted for two consecutive years during kharif, 2015 and 2016 seasons at the Regional Agricultural Research Station, Warangal, Telangana, India to study the bio efficacy of sulfoxaflor and other broad-spectrum insecticides on sucking pests and natural enemies of cotton under rain fed black soils. Among the treatments, a significant (47.6%) reduction of aphids was recorded with sulfoxaflor at 100 g a.i. ha-1 followed by flonicamid at 75 g a.i. ha-1 (42.8%) and sulfoxaflor at 90 (42.8%) as compared to other treatments. The highest reduction (61.0 %) of jassid was observed in flonicamid at 75 g a.i. ha-1 followed sulfoxaflor at 90 (50.8%) as compared to other treatments. The highest reduction (30.2%) of thrips was observed in sulfoxaflor at 100 g a.i. ha-1 followed by flonicamid at 75 g a.i. ha-1 (19.8%) and sulfoxaflor at 90 (19.8%) respectively, as compared to other treatments. The highest reduction (41.9%) of whitefly was observed in buprofezin at 250 g a.i. ha-1 followed by dinotefuran at 150 g a.i. ha-1 (35.5%) as compared to other treatments. None of the insecticidal treatments has affected the abundance of the natural enemy population during both the years of study. Overall, the study further revealed that, Sulfoxaflor at 100 g a.i ha-1 and flonicamid at 75 g a.i. ha-1 have shown good efficacy against sucking pests as well as recorded the highest seed cotton yield compared to other treatments and can be used as an alternative to other insecticides in the control of Cotton sucking pests.

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