Дисертації з теми "Lac Insect"
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Vargas, Niño Andrea Patricia. "Contatos interindividuais mediando sociabilidade em cupins (Insecta: Isoptera)." Universidade Federal de Viçosa, 2010. http://locus.ufv.br/handle/123456789/3981.
Повний текст джерелаConselho Nacional de Desenvolvimento Científico e Tecnológico
Os cupins apresentam uma alta complexidade social, onde os indivíduos que compõem uma colonia presentam uma divisão reproductiva do trabalho, na qual muitos indivíduos trabalham a favor de uns poucos que se reproduzem. A evolução dessa alta complexidade social tem sido um tema de pesquisa muito interesante, assim como os comportamentos sociais desses organismos. Entretanto um aspecto chave das mesmas interações sociais tem sido subestimado. Os efeitos do grupo vão mais além das simples vantagens na reprodução, proteção contra predadores ou melhoramento no forrageamento. O objetivo do trabalho foi testar se existe um efeito do tamanho do grupo e da complexidade social, sobre o numero de interações per capita e da sobrevivência dos indivíduos. Foram realizados experimentos no laboratório, empregando operários de 17 colonias de cupins, correspondentes a 6 especies as quais representam uma sequencia filogenética em Isoptera. Foram separados operários de cada colônia em diferentes tamanhos de grupo, e observadas as interações sociais e comportamentos desenvolvidos entre os indivíduos. Posteriormente foi calculada a sobrevivência promedio dos indivíduos em cada tamanho de grupo e correlacionada com los respectivos dados de interações. Finalmente foram comparados os resultados entre as três famílias de térmitas empregadas no presente estúdio. Os resultados obtidos no trabalho corroboram os resultados obtidos em estudos anteriores, onde o efeito do grupo aumenta a sobrevivência de operários de térmitas. Respeito ao incremento no tamanho de grupo, existe uma diminuição no numero de interações per cápita/segundo. A sobrevivência dos indivíduos é afetada pelo tamanho de grupo, mas não pelas interações per cápita/segundo para ninhuma das espécies estudadas. Entretanto existe uma clara tendência no incremento do numero de comportamentos com o incremento do tamanho do grupo e com a complexidade social.
Las termitas presentan una gran complejidad social, donde los indivíduos que componen una colonia presentan una división reproductiva del trabajo, en la cual gran cantidad de indivíduos trabajan a favor de algunos pocos que se reproducen. La evolución de esta alta complejidad social ha sido un tema de investigación muy interesante, asi como los comportamientos sociales de estos organismos. Sin embargo un aspecto clave de las mismas interacciones sociales ha sido subestimado. Los efectos de grupo van mas allá de las simples ventajas en la reproducción, protección contra depredadores o mejoramiento en el forrajeamento. El objetivo del trabajo fue ensayar si existe un efecto del tamaño de grupo y de la complejidad social, sobre el numero de interacciones per capita y sobrevivencia de los indivíduos. Fueron realizados experimentos en laboratório, utilizando obreros de 17 colonias de termitas, correspondientes a 6 especies las cuales representan una secuencia filogenética en Isoptera. Fueron separados obreros de cada colonia en diferentes tamaños de grupo, y observadas las interacciones sociales y comportamientos desarrollados entre los indivíduos. Posteriormente fue calculada la sobrevivência promedio de los indivíduos en cada tamaño de grupo y correlacionada con los respectivos datos de interacciones. Finalmente fueron comparados los resultados entre las tres famílias de termitas empleadas para este estúdio. Los resultados obtenidos en este trabajo corroboran los resultados obtenidos por estudios anteriores, según los cuales el efecto de grupo aumenta la sobrevivencia de obreros de térmitas. Se encontró que con el incremento en el tamaño de grupo, existe una disminución en el número de interacciones per cápita/segundo. La sobrevivencia de los individuos es afectada por el tamaño de grupo, sin embargo no es afectada por las interacciones per cápita/segundo para ninguna de las especies estudiadas. No obstante existe una clara tendencia en el aumento del número de comportamientos con el incremento del tamaño del grupo y con la complejidad social.
Sarmiento-Ponce, Edith Julieta. "An analysis of phonotactic behaviour in the cricket Gryllus bimaculatus." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/290108.
Повний текст джерелаSakata, Yuzu. "Temporal dynamics of resistance in an exotic plant Solidago altissima: geographic variation of plant-herbivore interactions in native and invaded range." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215342.
Повний текст джерелаMoisan-De, Serres Joseph. "Influence du paysage de bleuetières sur les communautés de pollinisateurs indigènes du Lac-St-Jean et évaluation du potentiel de pollinisation des pollinisateurs du bleuet nain." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29330/29330.pdf.
Повний текст джерелаMkize, Nolwazi. "Insect pests of cultivated and wild olives, and some of their natural enemies, in the Eastern Cape, South Africa." Thesis, Rhodes University, 2009. http://hdl.handle.net/10962/d1005403.
Повний текст джерелаPinto, Caballero Jesús Antonio. "Identificación de fuentes de alimentación de Panstrongylus Herreri (Hemíptera, Triatominae) mediante una prueba de precipitación, en el distrito de Cajaruro, provincia de Utcubamba, Amazonas - Perú." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2006. https://hdl.handle.net/20.500.12672/909.
Повний текст джерелаThe current work has the finality of identify the feeding sources of Panstrongylus herreri obtained from the location of Cajaruro (Utcubamba-Amazonas) where its presence distinguishes in domestic environments and is considered to be a principal vector of Chagas's disease in the nor east of Peru. For it, we propose to use the test of capillary tube precipitation known as precipitin test, developed in liquid phase; this give to us information over the type of blood consumed by the vector. For the precipitation test, there was used the intestinal content of the triatomine bugs as antigen and as antibody the precipitated antiserum obtained of rabbits immunized with human, dogs, cats, guinea-pigs and chickens serums. The work consists of two stages: In the first stage there was standardized the preparation of antiserums that contains the precipitated antibodies, likewise there was used nymphs of Triatoma infestans of IV and V stages maintained in the laboratory, which were fed with dog, guinea-pig and human blood, resolving the yield of the test as his sensibility and specificity, and in the second stage there were evaluated specimens of Panstrongylus herreri proceeding from two localities (El Ron and Hebrón) from Cajaruro's district, department of Amazonas, through the test already standardized.
Tesis
Chen-Hussey, Vanessa. "A cluster-randomised trial to assess whether the insect repellent 'N,N-diethyl-m-toluamide'(DEET) can provide additional protection against clinical malaria over current best practice in Lao, PDR." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2012. http://researchonline.lshtm.ac.uk/4646547/.
Повний текст джерелаJohnson, Jennifer N. "Lack of Rhythmicity in the Honey Bee Queen: An Investigation of Temporal Behavioral Patterns in Apis mellifera ligustica." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etd/1751.
Повний текст джерелаTreadwell, Danielle Dion. "Tillage and cover crop management influence weeds, insects, soil and crop nutrients, crop development and yield in organically managed North Carolina sweetpotato Ipomoea batatas (L.) Lam. systems." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-06182005-181203/.
Повний текст джерелаVega, Pallamar Xaviera Paz de la. "Efecto de la fragmentación del bosque Maulino en la composición, riqueza de especies y abundancia de insectos defoliadores de actividad nocturna asociados a Aristotelia chilensis (maqui)." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/101890.
Повний текст джерелаLa deforestación y fragmentación de los bosques nativos son una amenaza a la biodiversidad, alterando la biota e interacciones ecológicas. En el bosque Maulino, la herbivoría sobre Aristotelia chilensis (maqui) es negativamente afectada por la fragmentación del bosque, siendo mayor en el bosque continuo que en los fragmentos, particularmente a inicios de la temporada de crecimiento. Este fenómeno puede deberse a cambios en la dinámica de las poblaciones de defoliadores, esencialmente insectos. En este trabajo se evaluó la abundancia, riqueza de especies y composición de insectos defoliadores de actividad nocturna presentes en A. chilensis en un bosque continuo (600 ha) y en ocho fragmentos remanentes (0,4- 20 ha). Los muestreos se realizaron mensualmente, entre agosto de 2005 y febrero de 2006, en 32 ejemplares adultos de A. chilensis en el bosque continuo y en 32 ejemplares en los fragmentos. Los insectos fueron muestreados durante las 5 primeras horas después del anochecer. En cada árbol, durante 10 min se observaron todas las hojas de 5 ramas, colectando los insectos presentes. Además, se utilizó el método de sacudido de follaje y paraguas entomológico. Se colectaron 890 insectos defoliadores, pertenecientes a 17 familias y 77 especies de Coleoptera, Orthoptera y Lepidoptera. El 93,5% de las especies fueron identificadas a nivel de especie o morfoespecie, siendo todas nativas. La abundancia total no varió según el hábitat. Sin embargo, a nivel de orden, familia o especie hubo un efecto de la fragmentación taxón-dependiente. La riqueza de especies por árbol tampoco fue afectada por la fragmentación del bosque, aunque el número total de especies fue considerablemente mayor en los fragmentos que en el bosque continuo. La similitud de especies fue mayor dentro del bosque continuo que entre el bosque continuo y los fragmentos o que entre los fragmentos. A principios de la temporada (Septiembre), la abundancia de Sericoides obesa, insecto muy voraz, fue significativamente mayor en el bosque continuo que en los fragmentos. Al avanzar en la temporada, Chrysomelidae y Sericoides viridis se hicieron más abundantes en los fragmentos. Estos insectos serían los principales responsables de los patrones de defoliación de A. chilensis en el bosque Maulino.
In this work, the effect of the Maulino forest fragmentation on the abundance, species richness and composition of nocturnal defoliating insects associated with A. chilensis was evaluated. The insects were sampled every month, between August 2005 and february 2006, in 32 A. chilensis trees located in a continuous forest (600 ha) and in 32 trees from eight forest fragments (0,4- 20 ha). Sampling was carried out during the first 5 hours after dusk. 890 defoliating insects from 17 families and 77 species of Coleoptera, Orthoptera and Lepidoptera were collected. All species were native. The total abundance did not vary with habitat fragmentation. Nevertheless, at the ordinal, family or species level there was a taxon-dependent habitat fragmentation effect. The species richness per tree did not vary with forest fragmentation, though the total number of species was considerably higher in the forest fragments. The species similarity was higher within the continuous forest than between the continuous forest and fragments or between the fragments. At the beginning of the season (September), the abundance of Sericoides obesa, a very voracious folivorous species, was significantly higher in the continuous forest than in the forest fragments. Later in the season, Chrysomelidae and Sericoides viridis became more abundant in the forest fragments. These insects seem to be responsible of the defoliating patterns of A. chilensis at the Maulino forest.
Ludwig, Tobias. "Regulierung von Rapsschädlingen im ökologischen Winterrapsanbau durch den Mischanbau mit Rübsen (Brassica rapa L. var. silvestris (Lam.) Briggs) sowie den Einsatz naturstofflicher Pflanzenschutzmittel." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2013. http://dx.doi.org/10.18452/16759.
Повний текст джерелаOn three sites the pest-regulating effect of a rape-turnip rape mixed cropping system (ratio 9:1) in comparison to rape in pure stand was assessed. Further, natural and self-produced natural insecticide solutions (§ 6a Plant Protection Act) and a beetle collecting machine to regulate the stem weevils (Ceutorhynchus spp.) and the pollen beetles (Meligethes aeneus F.) were applied in laboratory and field experiments. Compared to the fields in pure stand the mixed crop showed a significantly greater abundance of pests. This resulted in a sometimes significantly greater pest infestation of the rape plants in the mixed crop. Furthermore, the mixed crop often had a significantly lower grain yield. The use of natural pyrethrum and Spinosad resulted in significantly higher mortality rates of the stem weevils in laboratory tests. Under field conditions no effect could be detected. In the regulation of the pollen beetles, Spinosad demonstrated under field and laboratory conditions efficiencies of up to 100 %. Sprayed mineral powder or SiO2 had only a slight effect. For a uniform wetting of the plants with these compounds the formulation of the phytosanitary broth and its repeated application are important factors. From an economic perspective, however, repeated applications are inefficient. For reasons of practicality rock-dusted flour and the beetle-collecting machine are not suitable for pollen beetle regulation. Quassin is just as inappropriate as Azadirachtin, or Bacillus thuringiensis (B.t.t.) for the regulation of the pollen beetle. With the exception of one Spinosad application, no protection measure provided an economic surplus. Nitrogen deficiency and weeds seem to more frequently limit grain yield than slight to moderate pest infestation levels. The better the nutrient supply and the lower the weed competition, the more likely by crop protection can be realized an economic surplus. Adequate crop protection strategies, however, have not yet been developed.
Santos, Rodrigo Souza. "Parasitismo de ovos de Leptopharsa heveae Drake & Poor, 1935 (Hemiptera: Tingidae) em seringueira (Hevea brasiliensis Müell. Arg.) no Estado do Mato Grosso /." Jaboticabal : [s.n.], 2007. http://hdl.handle.net/11449/102314.
Повний текст джерелаBanca: Valmir Antonio Costa
Banca: Angélica Maria Penteado Martins Dias
Banca: Francisco Jorge Cividanes
Banca: Sergio Antonio de Bortoli
Resumo: O objetivo deste trabalho foi realizar um levantamento de parasitóides associados à Leptopharsa heveae (Hemiptera: Tingidae) em talhões de seringueiras de cultivo na fazenda da empresa "Plantações E. Michelin Ltda.", município de Itiquira - MT (17º22'23''S, 54º44'23''W). Foram realizados três ensaios para determinar a ocorrência, porcentagem de parasitismo e flutuação populacional da praga e parasitóides em talhões com e sem aplicação de produtos fitossanitários. Também foi verificada a influência a idade da folha de seringueira na oviposição de L. heveae e na ocorrência de parasitóides e a distribuição espacial de parasitóides nos lados dos talhões, em cinco clones de seringueira (RRIM 600, PR 255, PB 217, PB 235 e GT 1). Nos ensaios realizados eram coletadas folhas maduras (completamente expandidas), sendo demarcadas as áreas contendo os ovos de L. heveae, do terço inferior da copa de árvores dos cinco clones estudados. No ensaio correspondente à influência da idade das folhas, além de folhas maduras, eram coletadas folhas intermediárias (semiexpandidas e verde-claras) e novas (não expandidas e arroxeadas). Em todos os ensaios realizados a espécie Erythmelus tingitiphagus (Hymenoptera: Mymaridae) foi a mais abundante e freqüente. A porcentagem de parasitismo de E. tingitiphagus sobre ovos de L. heveae variou entre 13,8% no clone PB 235 a 30,8% no RRIM 600 em condições naturais. Os picos populacionais de L. heveae e de E. tingitiphagus deram-se nos meses de outubro e novembro nas áreas estudadas. Verificou-se que a distribuição de E. tingitiphagus ocorreu de maneira eqüitativa nos lados dos talhões, com tendência a concentrar-se no centro dos mesmos. A oviposição de L. heveae é maior em folhas maduras em relação às intermediárias e novas.
Abstract: The objective of this work was to make a survey of parasitoids associated with Leptopharsa heveae (Hemiptera: Tingidae) in lots of rubber trees cultivation on the farm of the company "Plantações E. Michelin Ltda.", municipality of Itiquira - MT (17º22'23'', 54º44'23''W). Three experiments were made to determine the occurrence, percentage of parasitism and population flotation of the pest and parasitoids in lots with and without application of pesticides. Also the influence of the age of the rubber tree leaf was verified in the oviposition of L. heveae and in the parasitoids occurrence and the space distribution of parasitoids beside the lots, in five rubber tree clones (RRIM 600, PR 255, PB 217, PB 235 and GT 1). Through the experiments made, ripe leaves were collected (completely expanded), being demarcated the areas containing L. heveae's eggs, of the inferior third of the canopies of the five studied clones. In the experiment corresponding to the influence of the age of the leaves, besides ripe leaves, intermediate leaves were collected (semi-expanded and light green) and new (unexpanded and purple). In all experiments made, the species Erythmelus tingitiphagus (Hymenoptera: Mymaridae) was the most abundant and frequent. The percentage of parasitism of E. tingitiphagus on eggs of L. heveae varied between 13.8% in the PB 235 clone, to 30.8% in RRIM 600 in natural conditions. L. heveae's and E. tingitiphagus's population picks happened in the months of October and November in the studied areas. It was verified that that the distribution of E. tingitiphagus happened in an equal way in the sides of the lots, with tendency to concentrate in the center of themselves. The oviposition of L. heveae is larger in ripe leaves related to the intermediate and new ones.
Doutor
Segura, Zuin María Josefina. "Evaluación de la patogenicidad de hongos entomopatógenos procedentes de viñedos del oeste argentino, sobre insectos no objetivo: Harmonia axyridis (Coleoptera: Coccinellidae) y Apis mellifera (Hymenoptera: Apidae)." Bachelor's thesis, Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias, 2019. http://bdigital.uncu.edu.ar/11975.
Повний текст джерелаFil: Segura Zuin, María Josefina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias.
Neyra, Cruz Diana Krystel. "Estudio in vitro y en campo de la acción biácida del extracto acuoso de la corteza de catahua sobre los fitopatógenos de mayor incidencia del algodonero." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2010. https://hdl.handle.net/20.500.12672/11155.
Повний текст джерелаTesis
Santos, Rodrigo Souza [UNESP]. "Parasitismo de ovos de Leptopharsa heveae Drake & Poor, 1935 (Hemiptera: Tingidae) em seringueira (Hevea brasiliensis Müell. Arg.) no Estado do Mato Grosso." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/102314.
Повний текст джерелаCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Plantacoes E. Michelin Ltda.
O objetivo deste trabalho foi realizar um levantamento de parasitóides associados à Leptopharsa heveae (Hemiptera: Tingidae) em talhões de seringueiras de cultivo na fazenda da empresa “Plantações E. Michelin Ltda.”, município de Itiquira – MT (17º22’23’’S, 54º44’23’’W). Foram realizados três ensaios para determinar a ocorrência, porcentagem de parasitismo e flutuação populacional da praga e parasitóides em talhões com e sem aplicação de produtos fitossanitários. Também foi verificada a influência a idade da folha de seringueira na oviposição de L. heveae e na ocorrência de parasitóides e a distribuição espacial de parasitóides nos lados dos talhões, em cinco clones de seringueira (RRIM 600, PR 255, PB 217, PB 235 e GT 1). Nos ensaios realizados eram coletadas folhas maduras (completamente expandidas), sendo demarcadas as áreas contendo os ovos de L. heveae, do terço inferior da copa de árvores dos cinco clones estudados. No ensaio correspondente à influência da idade das folhas, além de folhas maduras, eram coletadas folhas intermediárias (semiexpandidas e verde-claras) e novas (não expandidas e arroxeadas). Em todos os ensaios realizados a espécie Erythmelus tingitiphagus (Hymenoptera: Mymaridae) foi a mais abundante e freqüente. A porcentagem de parasitismo de E. tingitiphagus sobre ovos de L. heveae variou entre 13,8% no clone PB 235 a 30,8% no RRIM 600 em condições naturais. Os picos populacionais de L. heveae e de E. tingitiphagus deram-se nos meses de outubro e novembro nas áreas estudadas. Verificou-se que a distribuição de E. tingitiphagus ocorreu de maneira eqüitativa nos lados dos talhões, com tendência a concentrar-se no centro dos mesmos. A oviposição de L. heveae é maior em folhas maduras em relação às intermediárias e novas.
The objective of this work was to make a survey of parasitoids associated with Leptopharsa heveae (Hemiptera: Tingidae) in lots of rubber trees cultivation on the farm of the company “Plantações E. Michelin Ltda.”, municipality of Itiquira – MT (17º22’23’’, 54º44’23’’W). Three experiments were made to determine the occurrence, percentage of parasitism and population flotation of the pest and parasitoids in lots with and without application of pesticides. Also the influence of the age of the rubber tree leaf was verified in the oviposition of L. heveae and in the parasitoids occurrence and the space distribution of parasitoids beside the lots, in five rubber tree clones (RRIM 600, PR 255, PB 217, PB 235 and GT 1). Through the experiments made, ripe leaves were collected (completely expanded), being demarcated the areas containing L. heveae’s eggs, of the inferior third of the canopies of the five studied clones. In the experiment corresponding to the influence of the age of the leaves, besides ripe leaves, intermediate leaves were collected (semi-expanded and light green) and new (unexpanded and purple). In all experiments made, the species Erythmelus tingitiphagus (Hymenoptera: Mymaridae) was the most abundant and frequent. The percentage of parasitism of E. tingitiphagus on eggs of L. heveae varied between 13.8% in the PB 235 clone, to 30.8% in RRIM 600 in natural conditions. L. heveae’s and E. tingitiphagus’s population picks happened in the months of October and November in the studied areas. It was verified that that the distribution of E. tingitiphagus happened in an equal way in the sides of the lots, with tendency to concentrate in the center of themselves. The oviposition of L. heveae is larger in ripe leaves related to the intermediate and new ones.
Santos, Edineusa Pereira dos. "Legado da história da paisagem na estrutura das comunidades de riachos /." Rio Claro, 2019. http://hdl.handle.net/11449/183386.
Повний текст джерелаResumo: Esta tese busca entender a estruturação de comunidades de riachos em paisagens modificadas enquanto contabiliza possíveis assincronias entre ambas. Logo, ela questiona os pressupostos de que (i) é necessário incluir características das paisagens passadas para alcançar uma abordagem mais completa dos fatores estruturadores das comunidades atuais e (ii) alternativamente, de que lapsos temporais nas respostas das comunidades devem ser considerados para compreender a total magnitude dos efeitos de uma dada mudança da paisagem. Além disso, são explorados condicionantes relacionados à caracterização do histórico da paisagem, ao tipo de descritor da comunidade e à complexidade do sistema ecológico. Em seu primeiro manuscrito, esta tese confirma tais pressupostos enquanto apresenta o primeiro registro de respostas tardias de insetos aquáticos em região tropical. Nele, eu demonstro que padrões nas comunidades poderiam ser mais bem compreendidos quando o histórico é descrito com mais de uma característica (e.g., média histórica e trajetórias de perda e ganho de cobertura florestal) e que a detecção de respostas tardias varia de acordo com os descritores de comunidades estudados. Em seu segundo manuscrito, um modelo teórico foi testado admitindo múltiplas relações simultâneas e, predominantemente, indiretas para o sistema de estudo. Neste, além daqueles pressupostos, foram confirmados caminhos causais pelos quais a cobertura florestal e usos dos solos estruturam as comunidades. Com os c... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: This thesis aims to understand the assembly of stream communities in modified landscapes by accounting for possible asynchronies between the two. In this way, it questions the assumptions that (i) it is necessary to include past landscape characteristics to reach a more complete approach of the structuring factors of current communities, and that (ii), alternatively, one should consider time lags in community responses to encompass the magnitude of the effects of a certain landscape change. In addition, drivers related to the characteristics of landscape history, the type of community descriptor and the complexity of the ecological system are questioned. In its first manuscript, this thesis confirms those assumptions and shows the first record of delayed responses of aquatic insects in the tropical region. In that, I show that patterns in communities could be better understood when landscape history is described with more than one characteristic (e.g., historical mean and loss and gain trajectories of forest cover) and that the detection of delayed responses varies according to the community descriptors. In its second manuscript, a theoretical model was tested admitting multiple simultaneous, and predominantly, indirect relationships in the study system. Then, in addition to the previous assumptions, causal pathways by which forest cover and land uses structure communities were confirmed. With the paths, empirical evidence that aquatic insect community assembling is affected ... (Complete abstract click electronic access below)
Doutor
Tourle, Robyn. "Effects of ant predation on the efficacy of biological control agents Hypena Laceratalis Walker (Lepidoptera : noctuirdae) ; Falconia intermedia Distant (Hemiptera : Miridae and Teleonemia scrupulosa Stål (Hemiptera: Tingidae) on Lantana Camara (Verbenaceae) in South Africa." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1005362.
Повний текст джерелаKaprakkaden, Anees. "Biosynthesis of aleuritic acid in Indian lac insect, Kerria Lacca and its in Vitro production." Thesis, 2016. http://localhost:8080/xmlui/handle/12345678/7122.
Повний текст джерелаBrill, Nancy Lee. "Effects of grower management practices and field characteristics on insect damage to sweetpotato (Ipomoea batatas (L.) Lam.) roots." 2005. http://www.lib.ncsu.edu/theses/available/etd-07212005-122745/unrestricted/etd.pdf.
Повний текст джерела吳建勳. "Healthy management on diseases and insect pests of sweet potato, Ipomoea batatas (L.) Lam. in Yunlin county, Taiwan." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7kfr66.
Повний текст джерела國立嘉義大學
生物資源學系研究所
106
Three varieties of sweet potato (Ipomoea batatas (L.) Lam.), TNG 57, TNG 66 and TNG 72, were planted in Yunlin county in the way of the healthy management for diseases and insect pests. The experimental field was divided into the healthy management and organic materials (control) plots. The yellow sticky papers and sex pheromone-baited traps were used to survey adult densities and peak period of insect pests and nature enemies in the spring and autumn seasons. By using yellow sticky papers in both healthy management and organic materials (control) plots, the results showed that the peak periods of Aleyrodidae insect pests of two plots in spring cropping were both from mid-May, and the number adults were respectively 270.2 and 190.8 / paper. In autumn cropping, these were early-October and mid-October, and the number adults were respectively 263.0 and 231.4/paper. The peak periods of Cicadellidae insect pests of the two plots in spring cropping were late-March and mid-May, and the number adults were respectively 61.4 and 99.2/paper. In autumn cropping, these were mid-November and late- November, and the number adults were respectively 93.6 and 81.1/paper. For the Thripidae insect pests, in spring cropping the peak periods were both from mid-May, and the number adults were respectively 68.2 and 69.1/paper. In autumn cropping, these were both from early-October, and the number adults were respectively 525.7 and 457.3/ paper. In the two plots, yellow sticky papers were used to investigate the peak periods of natural enemies, it was found that the numbers of Braconidae parasitoids in spring cropping were respectively 3.9 and 7.3/paper in early-June. In autumn cropping, these were respectively 24.0 and 16.5/paper in mid-November. The numbers of Tachinidae parasitoids in spring cropping were respectively 2.2 and 1.9/paper in mid-July and late-April, and in autumn cropping these were respectively 37.1 and 36.8/paper in mid-November. The numbers of Coccinellidae predators in spring cropping were respectively 3.2 and 2.1/paper in mid-May, and in autumn cropping these were respectively 6.3 and 6.0/ paper in late-December. By using sex pheromone-baited traps of Spodoptera litura in both plots, the results showed that the peak periods in spring cropping were both from early-June, and the number adults were respectively 702.5 and 1,203.0/trap. In autumn cropping, these were both in late-November, and the number adults were respectively 1,822.0 and 1,840.5/trap. By using sex pheromone-baited traps of Cylas formicarius in both plots, the results showed that the peak periods in spring cropping were in mid-April and mid-July, and the number adults were respectively 414.5 and 587.0/trap. In autumn cropping, these were both in late-November, and the number adults were respectively 183.5 and 252.5/trap. After 5.5months of growing in spring and autumn cropping, per 1 × 1 m2 of sweet potato roots were sampled, and it showed that the number of C. formicarius of TNG 66 in the organic materials (control) plot had the highest yield, which were respectively 42.0 and 20.0/m2, and the damaged root was the highest, which were respectively 17.6 and 6.3 %. The infested rate of southern blight (Sclerotium rolfsii) of three sweet potato varieties in spring cropping in the organic materials (control) plot were between 1.5-2.0, and in autumn cropping TNG 57 was the highest, which were respectively 30.3 and 13.3 %. As for the infested rate of foot rot disease (Phomopsis destruens) of sweet potato, it was only found on TNG 57 in spring cropping in the organic materials (control) plot, which was 3.3 %. The number of sweet potato tubers in the healthy management plot was higher than that in the organic materials (control) plot. In spring cropping of TNG 72 was 27.3/m2, and in autumn cropping of TNG 66 was 35.7/m2. The sweet potato tuber weight of TNG 66 in the healthy management plot in spring and autumn cropping was also the highest, which were 5,980 and 7,643.3 g/m2, but there were no significantly difference in the two plots. Therefore, planting sweet potato in Yunlin county with the healthy management and organic materials (control) plot all will have a certain level of yields, and TNG 66 in the healthy management plot will get a better yield.
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