Tesis sobre el tema "Insect control"
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Tickes, B. y M. Rethwisch. "Bermuda Grass insect Control". College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/200824.
Texto completoATTATHOM, Tipvadee. "Biotechnology for Insect Pest Control". 農学国際教育協力研究センター, 2004. http://hdl.handle.net/2237/8932.
Texto completoSmitt, Olof. "Syntheses of Allelochemicals for Insect Control". Doctoral thesis, KTH, Chemistry, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3401.
Texto completoThis thesis describes the synthetic preparation of somecompounds, which can serve as chemical signals for use in thedevelopment of control methods for pest insects. The compoundssynthesised are of the isoprenoid type and of two kinds:carvone derivatives and germacranes. The derivatives of carvoneare based on modifications of this compound, by reactions ofeither its endocyclic or its exocyclic double bond. One type ofmodifications was accomplished by chemoselective additions ofthiophenol. The latter ones imply additions to the exocyclicdouble bond and seem to constitute general, previously rarelystudied reactions.
In other modifications of its exocyclic side chain, carvoneafforded some sesqui- and diterpeniod natural products. Thefollowing compounds were synthesised in an enantioselectiveway: (-)-epi-delobanone, (-)-delobanone,(-)-7-hydroxy-3,10-prenylbisaboladien- 2-one (an insecticidalconstituent of Croton linearis) as well as its diastereomer andsome other compounds with similar structures. All of thesecompounds weretested for their antifeedant/feeding deterrentcapability against gnawing of the pine weevil, Hylobiusabietis.
The germacranes prepared by means of enantioselective totalsyntheses are: ()- 1(10),5-germacradien-4-ol and()-germacrene D. The former is a constituent of thedefence secretion (an allomone) from the larvae of the pinesawfly, and the needles of Scots pine. ()-Germacrene D isa ubiquitous compound in nature. For example, it occurs in thepeels of apples and acts as one component of a lure (akairomone) to the apples, which attracts the codling moth,Cydia pomonella.
The main problem in the total syntheses of the germacraneswas the formation of the unsaturated monocyclic 10-memberedring. This was achieved by intramolecular alkylation with asuitably functionalised/protected cyanohydrin derivative,which, after further elaboration, afforded a monocyclic10-membered enone, that was used in the syntheses of the twogermacranes mentioned above. In the initial steps in thesynthetic sequence the stereochemistry was established byalkylation of an amide enolate attached to a chiral auxiliary.This approach could most likely also readily furnish the(+)-enantiomers of these germacrenes (of the germacraneterpenoid class) using the opposite enantiomer of the chiralauxiliary in the initial steps.
Keywords: isoprenoids, natural product synthesis,allelochemicals, kairomones, allomones, bisabolane terpenoids,Hylobius abietis, germacrane terpenoids, Neodiprion sertifer,stereoselective synthesis.
Jech, L. E., S. H. Husman, P. C. Ellsworth y J. W. Diehl. "Whitefly Control Using Insect Growth Regulators". College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/211091.
Texto completoWinskill, Peter. "Evaluation of transgenic insects for use in the control of insect-borne disease". Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/45393.
Texto completoZhou, Yanmin. "Insect adhesion on rough surfaces and properties of insect repellent surfaces". Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709055.
Texto completoMcGinley, Susan. "Iron Metabolism in Humans and Insects: Implications For Human Health and For Insect Control". College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/622261.
Texto completoBarclay, Jeffrey William. "Environmentally-induced thermoprotection of insect motor control". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ63403.pdf.
Texto completoGuo, Shishi. "Biologically-inspired control framework for insect animation". Thesis, Bournemouth University, 2015. http://eprints.bournemouth.ac.uk/22502/.
Texto completoTyler, Ray, Edith DeRosa, Lee J. Clark y Leon Moore. "Early Insect Control in Cotton, Greenlee County". College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219791.
Texto completoCotton was treated at the pinhead square stage with Orthene to prevent boll shed caused by thrips and Lygus. Yield results showed no statistically significant differences, even though yield trends indicated a decrease in the treated plots compared to the check. Severe pressure from Heliothus later in the season and the yield trends would indicate that the insecticide treatment effect on the beneficial insects was more important than its effect on thrips and Lygus.
Nseiri, Sony M. "Prothoracicotropic hormone in the insect, Rhodnius prolixus source in the brain and control of rhythmic release /". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ43394.pdf.
Texto completoScholtz, Anna J. "Evaluation of the large-scale trapping of blowflies (Lucilia spp.) for an integrated pest management program : the lucitrap". Thesis, Port Elizabeth Technikon, 2003. http://hdl.handle.net/10948/126.
Texto completoChu, C. C. y T. J. Henneberry. "Chemical Control Studies of Silverleaf Whitefly Control". College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/210866.
Texto completoLorraine, Debrah F. "Oxidation of plant allelochemicals by phytophagous sucking insects". Title page, table of contents and summary only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09phl876.pdf.
Texto completoSalloum, Gregory Stewart. "Insect growth inhibitors from asteraceous plant extracts". Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26529.
Texto completoLand and Food Systems, Faculty of
Graduate
Williams, Elizabeth Catherine. "Entomopathogenic nematodes as control agents of statutory insect pests". Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265978.
Texto completoGwynn, Roma L. "Development of cold active nematodes for insect pest control". Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358377.
Texto completoBartlett, A. C., L. J. Lewis y B. A. Hunter. "Control of the Sweetpotato Whitefly by Insect Growth Regulators". College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/208356.
Texto completoUmeda, K. y B. Strickland. "S-1812 Lepidopterous Insect Pest Control in Broccoli Study". College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/219968.
Texto completoUmeda, K., J. Murrieta y D. Stewart. "Lepidopterous Insect Pest Control with New Insecticides in Cabbage". College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/221641.
Texto completoMalek, Robert Nehme. "Novel Monitoring and Biological Control of Invasive Insect Pests". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/257781.
Texto completoMalek, Robert Nehme. "Novel Monitoring and Biological Control of Invasive Insect Pests". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/257781.
Texto completoScudeler, Elton Luiz [UNESP]. "Efeito do óleo de nim (Azadirachta indica A. Juss) no intestino médio de Ceraeochrysa claveri (Navás, 1911) (Neuroptera: Chrysopidae): estudo citoquímico, imunocitoquímico e ultraestrutural". Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/99436.
Texto completoCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Ceraeochrysa claveri, popularmente conhecido como bicho lixeiro, é um inseto predador de ovos e larvas de insetos pragas encontrados em diferentes ecossistemas agrícolas. O bicho lixeiro se destaca por apresentar potencial para ser utilizado em programas de Controle Biológico, uma vez que é predador na fase de larva, apresenta curto tempo de desenvolvimento, fácil criação massal e alto potencial reprodutivo na fase adulta. Com o propósito de aprofundar o conhecimento na morfologia e ultraestrutura do intestino médio de C. claveri, o objetivo deste trabalho foi caracterizar histológica e ultraestruturalmente o intestino médio de C. claveri no terceiro ínstar de larva, pupa e adulto. Objetivamos, ainda, avaliar o efeito da ingestão do óleo de nim (Azadirachta indica A. Juss) (Meliaceae) sobre as células epiteliais do intestino médio de larva de terceiro ínstar, pupa e adulto de C. claveri. Ovos de Diatraea saccharalis foram tratados com óleo de nim em três diferentes concentrações (0,5; 1 e 2%) e oferecidos como alimento a larvas de C. claveri durante todo período larval. Após coleta e fixação do intestino médio de larva, pupa e adulto (grupos controle e tratados com óleo de nim), as regiões do mesêntero (anterior, média e posterior) foram processadas para análise histológica (citoquímica e imunocitoquímica) e para análise ultraestrutural. Nossos resultados mostraram que o intestino médio de C. claveri, para as três fases do ciclo de vida, é do tipo pseudoestratificado, composto por células colunares, regenerativas e endócrinas; diferenças morfológicas e ultraestruturais no epitélio permitem caracterizar duas regiões, anterior e posterior, atuando respectivamente na secreção e absorção; região média apresenta características...
Ceraeochrysa claveri, popularly known as trash-carriers is a predator insect of eggs and larvae of insect pests found in different agroecosystems. The trash-carriers stands out because it has the potential to be used in biological control programs, once it is a predator in the larval stage; it has short developmental times, easy mass-rearing and high reproductive potential in adult stage. In order to deepen the knowledge on the morphology and ultrastructure of the midgut of C. claveri, the aim of this study was to characterize histological and ultrastructurally the midgut of C. claveri in the third instar larva, pupa and adult. We also evaluate the effect of ingestion of neem oil (Azadirachta indica A. Juss) (Meliaceae) on the midgut epithelial cells of third instar larva, pupa and adult of C. claveri. Diatraea saccharalis eggs were treated with neem oil at three different concentrations (0.5, 1 and 2%) and provided as food to larvae of C. claveri throughout the larval period. After collected and fixed the midgut of larva, pupa and adult (control and treated groups with neem oil), the midgut regions (anterior, middle and posterior) were processed for histological (cytochemistry and immunocytochemistry) and for ultrastructural analysis. Our results showed that the midgut of C. claveri for the three phases of the life cycle is of pseudostratified type, consisting of columnar cells, regenerative cells, and endocrine cells, morphological and ultrastructural differences in the epithelium allowed to characterize two regions, the anterior and posterior, they working mainly in the secretion and absorption respectively; the middle region has intermediate characteristics, and it is considered a transitional area. The ingestion of neem oil in the larval stage of C. claveri showed to be toxic to this predator, causing ultrastructural alterations... (Complete abstract click electronic access below)
Scudeler, Elton Luiz. "Efeito do óleo de nim (Azadirachta indica A. Juss) no intestino médio de Ceraeochrysa claveri (Navás, 1911) (Neuroptera: Chrysopidae) : estudo citoquímico, imunocitoquímico e ultraestrutural /". Botucatu, 2012. http://hdl.handle.net/11449/99436.
Texto completoBanca: Hélio Conte
Banca: Daniela Oliveira Pinheiro
Resumo: Ceraeochrysa claveri, popularmente conhecido como bicho lixeiro, é um inseto predador de ovos e larvas de insetos pragas encontrados em diferentes ecossistemas agrícolas. O bicho lixeiro se destaca por apresentar potencial para ser utilizado em programas de Controle Biológico, uma vez que é predador na fase de larva, apresenta curto tempo de desenvolvimento, fácil criação massal e alto potencial reprodutivo na fase adulta. Com o propósito de aprofundar o conhecimento na morfologia e ultraestrutura do intestino médio de C. claveri, o objetivo deste trabalho foi caracterizar histológica e ultraestruturalmente o intestino médio de C. claveri no terceiro ínstar de larva, pupa e adulto. Objetivamos, ainda, avaliar o efeito da ingestão do óleo de nim (Azadirachta indica A. Juss) (Meliaceae) sobre as células epiteliais do intestino médio de larva de terceiro ínstar, pupa e adulto de C. claveri. Ovos de Diatraea saccharalis foram tratados com óleo de nim em três diferentes concentrações (0,5; 1 e 2%) e oferecidos como alimento a larvas de C. claveri durante todo período larval. Após coleta e fixação do intestino médio de larva, pupa e adulto (grupos controle e tratados com óleo de nim), as regiões do mesêntero (anterior, média e posterior) foram processadas para análise histológica (citoquímica e imunocitoquímica) e para análise ultraestrutural. Nossos resultados mostraram que o intestino médio de C. claveri, para as três fases do ciclo de vida, é do tipo pseudoestratificado, composto por células colunares, regenerativas e endócrinas; diferenças morfológicas e ultraestruturais no epitélio permitem caracterizar duas regiões, anterior e posterior, atuando respectivamente na secreção e absorção; região média apresenta características... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Ceraeochrysa claveri, popularly known as trash-carriers is a predator insect of eggs and larvae of insect pests found in different agroecosystems. The trash-carriers stands out because it has the potential to be used in biological control programs, once it is a predator in the larval stage; it has short developmental times, easy mass-rearing and high reproductive potential in adult stage. In order to deepen the knowledge on the morphology and ultrastructure of the midgut of C. claveri, the aim of this study was to characterize histological and ultrastructurally the midgut of C. claveri in the third instar larva, pupa and adult. We also evaluate the effect of ingestion of neem oil (Azadirachta indica A. Juss) (Meliaceae) on the midgut epithelial cells of third instar larva, pupa and adult of C. claveri. Diatraea saccharalis eggs were treated with neem oil at three different concentrations (0.5, 1 and 2%) and provided as food to larvae of C. claveri throughout the larval period. After collected and fixed the midgut of larva, pupa and adult (control and treated groups with neem oil), the midgut regions (anterior, middle and posterior) were processed for histological (cytochemistry and immunocytochemistry) and for ultrastructural analysis. Our results showed that the midgut of C. claveri for the three phases of the life cycle is of pseudostratified type, consisting of columnar cells, regenerative cells, and endocrine cells, morphological and ultrastructural differences in the epithelium allowed to characterize two regions, the anterior and posterior, they working mainly in the secretion and absorption respectively; the middle region has intermediate characteristics, and it is considered a transitional area. The ingestion of neem oil in the larval stage of C. claveri showed to be toxic to this predator, causing ultrastructural alterations... (Complete abstract click electronic access below)
Mestre
Hamilton, Amanda Jane. "Discovery and development of new phylloplane bio control agents to control insect pests". Thesis, University of Reading, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701806.
Texto completoWeyl, Philip Sebastian Richard. ""Is more, less?" : insect-insect interactions in a biological control context using water hyacinth as a model". Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1005410.
Texto completoTerry, L. Irene. "Control of Early Season Insects". College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/204085.
Texto completoHuggett, David Alan John. "Potential insect pests of the biomass crop Miscanthus". Thesis, Imperial College London, 1997. http://hdl.handle.net/10044/1/7180.
Texto completoChang, Gary C. "Ecological interaction among natural enemies and its consequences for biological control /". Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/5205.
Texto completoHasan, Md Mahbub. "Comparative sensitivity of Tribolium spp. to gamma irradiation throughout ontogeny". Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283051.
Texto completoUmeda, Kai y Chris Fredman. "Evaluation of Insecticides for Lepidopterous Insect Pest Control in Cabbage". College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/214747.
Texto completoBolton, Michael. "Genetic control methods for agricultural insect pests of global importance". Thesis, University of East Anglia, 2017. https://ueaeprints.uea.ac.uk/63943/.
Texto completoChikate, Y. R. "Development of efficient strategies for control of Lepidopteran insect pest". Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2014. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/1968.
Texto completoGarriga, Oliveras Anna. "Entomopathogenic nematodes and Drosophila suzukii: from biological control to immunology perspective". Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/673764.
Texto completoDrososphila suzukii es una plaga invasora que ataca a frutos rojos, fresas y cerezas ya que las larvas se alimentan antes de la maduración del fruto. En esta tesis se evalúa la potencialidad de los nematodos entomopatógenos como agentes de control biológico para controlar D. suzukii, a la vez que se determina el papel del sistema inmunológico del insecto frente a la infección. En los dos primeros capítulos, se analiza la susceptibilidad de las etapas de desarrollo de la mosca frente a los nematodos Steinernema feltiae, Steinernema carpocapsae y Heterorhabditis bacteriophora en condiciones de laboratorio. Las larvas son altamente susceptibles a todas las especies de nematodo usadas, en cambio no se registró ninguna infección durante la etapa de pupa. En la fase adulta solo S. carpocapsae fue capaz de infectar, consiguiendo un porcentaje de infección elevado en adultos que acaban de emerger en comparación con adultos maduros. Además, también se realizaron dos pruebas preliminares de aplicación de nematodos en fruto y tierra en condiciones de laboratorio. Para combinar la aplicación de nematodos con otros agentes de control biológico como son insectos depredadores y parasitoides, en el tercer capítulo se han realizado ensayos de compatibilidad en placa de Petri y en planta. Estos experimentos han demostrado que los nematodos no han infectado los insectos beneficiosos en condiciones de planta y podrían ser usados conjuntamente. El desarrollo de la respuesta inmune en el proceso infectivo de S. carpocapsae y la bacteria simbionte X. nematophila es desconocido en D. suzukii y por lo tanto se ha abordado en dos capítulos el estudio a nivel efectivo y regulador. Mediante ensayos fisiológicos y de expresión génica se han evaluado 6 vías inmunológicas incluyendo procesos humorales, celulares i de activación global. En la respuesta humoral no se detectó una activación en presencia del nematodo y solo se activaron los genes Toll y Imd cuando fue liberada la bacteria. A nivel efector eso significó un aumento de péptidos antimicrobianos en hemolinfa, a pesar de que su actividad fue bloqueada por la acción de la bacteria. A nivel celular, el nematodo tampoco fue reconocido por los receptores correspondientes i no se activó ni la vía Jak/STAT ni proPO. Por lo tanto, los hemocitos no se activaron y no se encapsularon los nematodos ni fagocitó la bacteria. Además, sin la activación de las células cristalinas tampoco se liberó la enzima fenol-oxidasa y no se pudo desarrollar la respuesta de melanización. Igualmente se ha descrito como en presencia de X. nematophila, la enzima presenta una bajada de actividad en hemolinfa. Finalmente, JNK y TGF-β son vías relacionadas con la activación global en condiciones de estrés que no se han alterado por la infección. Estos resultados muestran los mecanismos usados por el complejo S. carpocapsae – X. nematophila para superar las defensas del insecto. Esta tesis engloba la relación entre nematodos entomopatógenos y D. suzukii estableciendo las bases de susceptibilidad con las cuales desarrollar una estrategia de control biológico, y el conocimiento del proceso infectivo entre huésped y patógeno.
Drosophila suzukii is an invasive pest that attacks berries, strawberries, and cherries because larvae feed from ripen fruit causing great losses. In this thesis, the potentiality of entomopathogenic nematodes as biological control agents was evaluated to control D. suzukii, as well as to determine the role of insect’s immune system against infection. In the two first chapters, we studied the susceptibility of the developmental stages of the fly against the nematodes Steinernema feltiae, Steinernema carpocapsae and Heterorhabditis bacteriophora under laboratory conditions. Larvae were highly susceptible to all tested nematodes, although no infection was detected during pupal stage. In the adult stage, only S. carpocapsae managed to infect the fly with a high percentage of infection in teneral adults (newly emerged) compared to mature adults. Moreover, two preliminary tests of nematode application were carried out in fruit and soil under laboratory conditions with promising results. In order to perform combined application of nematodes and other biological control agents such as insect predators and parasitoids, in the third chapter, compatibility experiments were done in Petri dish and plant pot. These assays showed no infection of nematodes to the beneficial insects under plant pot conditions. Thus, these agents could be used together. The development of the immune response to the infective process of S. carpocapsae and the symbiont bacteria X. nematophila was unknown in D. suzukii. For this reason, two chapters were focused on the immune study at effective and regulatory level. Through physiological and gene expression assays, 6 immune pathways were studied including humoral and cellular processes, and global activation. Regarding the humoral response, there was no activation under nematode presence and the upregulation of Toll and Imd genes happened only after bacterial release. At the effector level these resulted in an increase of antimicrobial peptides in haemolymph, although the activity was supressed by the bacteria. At cellular level, nematodes were not recognised by the receptors and Jak/STAT and proPO were not activated in response. In consequence, haemocytes were unactive and neither encapsulation of nematodes nor phagocytosis of bacteria was detected. Moreover, without the activation of crystal cells, there was no release of phenol-oxidase enzyme and the fly was unable to develop the melanization response. With the presence of X. nematophila, the enzyme presented a reduced activity in haemolymph too. Finally, JNK and TGF-β are pathways related to global activation under stress conditions, but these presented no variations under nematode-bacterial infection. These results showed the mechanisms used by the complex S. carpocapsae – X. nematophila to overcome the insect defences. This thesis encompasses the relation between entomopathogenic nematodes and D. suzukii establishing the susceptibility baseline to develop a biological control strategy and the knowledge of the infective process between host and pathogen.
Universitat Autònoma de Barcelona. Programa de Doctorat en Biodiversitat
Smith, Ethan A. "Is everything connected? following the predators, pests, and plants within a no-till, western Montana agroecosystem /". CONNECT TO THIS TITLE ONLINE, 2006. http://etd.lib.umt.edu/theses/available/etd-12212006-142245/.
Texto completoArthur, Paula Bergamin. "Determinação das doses letais e esterilizantes para as fases do ciclo de vida do Alphitobius diaperinus (Panzer, 1797) (Coleoptera: Tenebrionidae)". Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-18052018-154428/.
Texto completoThe mealworm (Alphitobius diaperinus) is a family Tenebrionidae insect originally from West Africa, commonly found in stored grain and sheds creation of broilers, turkeys and matrices. It is one of the main pests of poultry industry in many countries. Because of this fact the survey was to determine the lethal and sterilizing doses for all phases of the life cycle of the mealworm A. diaperinus aimed at your control. The experiment was conducted at the Laboratory of Radiobiology and Environment of the Center for Nuclear Energy in Agriculture - CENA / USP. All phases of the life cycle of the insect (egg, larva, pupa and adult) were irradiated with increasing doses of gamma radiation from Cobalt-60 of: 0 (control), and 10 300 Gy. Each treatment to eggs consisted of 5 repetitions with 10 eggs each for a total of 50 per treatment. For larvae, pupae and adults each treatment consisted of 5 repetitions with 20 individuals each for a total of 100 per treatment. After irradiation the insects were kept in a room with 25 ± 5 ° C; 70 ± 5% relative humidity and photophase 12:12 hrs. The evaluations were done every 7 days for a 49-day period of mortality and adult emergence of stages: eggs, larvae, pupae and adults. The experimental statistical design for the test was completely randomized in a 5x7 layout (5 treatments and 7 processing). The results obtained in the evaluations were submitted to analysis of variance by F test and comparison of averages by 5% Tukey test, using the statistical system SAS (Statistical Analysis System, 1999). From the results obtained it was concluded that the lethal and sterilizing all stages in the life cycle of the insect were: egg lethal dose 30 Gy sterilizing 20 Gy; larva sterilizing and lethal dose 100 Gy and 125 Gy; pupa sterilizing and lethal dose 125 and 150 Gy and sterilizing adult dose 150 Gy.
Bourchier, Robert S. "Development of traps for adult Glischrochilus quadrisignatus (Say) (Coleoptera:Nitidulidae) and investigation of olfactory responses to volatile components of corn, raspberry and tomato". Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66170.
Texto completoRamos, Olgaly. "Entomopathogenic nematodes for the biological control of stored product insect pests /". Search for this dissertation online, 2005. http://wwwlib.umi.com/cr/ksu/main.
Texto completoChafino, Aixa Silvia 1991. "Endocrine control of insect metamorphosis : Characterization of he "Metamorphic Gene Network"". Doctoral thesis, Universitat Pompeu Fabra, 2018. http://hdl.handle.net/10803/665654.
Texto completoLa metamorfosi dels insectes està controlada per per dues hormones, l’hidroxiecdisona (20E) i l’hormona juvenil (HJ), que a la vegada regulen l’expressió d’una sèrie de gens. Aquests gens, E93, Krüppel-homolog 1 (Kr-h1) i Broad-complex (Br-C), formen una xarxa de factors de transcripció anomenada “Gene Metamorphic Network” (MGN). Canvis en la regulació de la MGN són la base de l’evolució de la metamorfosi completa, no obstant, el coneixement sobre la MGN en diferents tipus d’insectes és escàs. Aquesta tesi te com a objectiu la caracterització i la regulació de la MGN en diferents tipus d’insectes. En primer lloc, hem co-relacionat l’expressió dels gens de la MGN amb dos moments del desenvolupament associats a la mida de l’organisme que controlen l’inici de la metamorfosi en el coleòpter Tribolium castaneum. En segon lloc, hem caracteritzat la MGN en el desenvolupament neotènic de l’espècie Strepsiptera Xenos vesparum i hem trobat que la neotènia podria ser el resultat de modificacions en l’expressió de E93, Br-C and Kr-h1. Finalment, hem analitzat la funció de la via de senyalització EGFR en la regulació de la síntesis de l’20E en Tribolium castaneum.
Asimakopoulos, Spilios. "The control of salivary glands in the stick insect, carausius morosus". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0002/MQ40880.pdf.
Texto completoShoala, Tahsin. "Molecular approaches to understand plant-insect interactions to enhance pest control". Thesis, University of Newcastle upon Tyne, 2012. http://hdl.handle.net/10443/1895.
Texto completoSzczecinski, Nicholas S. "MASSIVELY DISTRIBUTED NEUROMORPHIC CONTROL FOR LEGGED ROBOTS MODELED AFTER INSECT STEPPING". Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1354648661.
Texto completoGreen, Emily. "Development of genetic control strategies for insect pests using CRISPR/Cas9". Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAJ100.
Texto completoInsect pest control remains an important economic, environmental, and public health challenge. CRISPR/Cas9 gene drive (GD) is a novel genetic control strategy. GDs are genetic systems that can rapidly invade a population. This manuscript presents my efforts to develop gene drives in two important pest species, Anopheles gambiae, a major vector of malaria, and Drosophila suzukii, a global crop pest. The goals of this project were to develop a suppression gene drive in D. suzukii, to reduce population size, and a modification drive in An. gambiae, to reduce malaria transmission. While I was unable to produce a functional gene drive in D. suzukii, the efforts and protocols presented here can serve as a baseline for future work in this economically important crop pest. In An. gambiae, I successfully characterized two transgenic lines, one of which significantly blocks malaria transmission to a rodent model. Finally, I present my efforts to engineer a new modification gene drive strategy, indirect gene drive
Terry, Irene y Ben Barstow. "Early Season Insect Control: Effects on Cotton Variety Yield and Fruiting". College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219766.
Texto completoMany cotton field trials were conducted in central Arizona to compare various early season pesticide treatments on several commercially available cultivars for plant growth responses and thrips control. Treated plots received either aldicarb (Temik), at planting or first square, or acephate (Orthene), one to three foliar applications during early squaring. Although results were quite variable, general trends included: most treatments did reduce thrips populations; fewer shed squares occurred in plots treated at first square; plants compensated for this square shed; treated plots may be earlier in boll production than untreated areas; and most tests showed no statistical differences in healthy square production or in yield.
Ellsworth, Peter C. "Lygus Control Decision Aids for Arizona Cotton". College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/197516.
Texto completoRust, Nico. "The development of a commercial production process for p-menthane-3,8-diol". Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/d1018273.
Texto completoAli, Sayyed Hussnain. "Resistance mechanisms to Bacillus thuringiensis and specific crystal toxins in the diamondback moth, Plutella xylostella L". Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326276.
Texto completoHawtin, Rachael E. "The chitinase of Autographa californica nuclear polyhedrosis virus". Thesis, Oxford Brookes University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332586.
Texto completoHeneghan, Philip Andrew. "Side-effects of synthetic pyrethroid insecticides on the dispersal activity of predatory Coleoptera, with particular reference to the Carabidae". Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259933.
Texto completoQuartey, George Kwartelai. "Behavioural responses of Ephestia cautella to synthetic pheromones". Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385860.
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