Дисертації з теми "Aphide"
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Rouil, Jeff. "Évolution et dynamique du système di-symbiotique chez les pucerons du genre Cinara." Electronic Thesis or Diss., Montpellier, SupAgro, 2023. http://www.theses.fr/2023NSAM0004.
The existence of multi-symbiotic systems has been demonstrated in several aphid species (Hemiptera: Aphididae) and more particularly in species of the genus Cinara. The taxonomic caracterisation of the symbionts present in about sixty species of Cinara has made it possible to determine that Serratia symbiotica is the most frequently found bacterium as an obligatory secondary symbiont. Furthermore, the reconstruction of the evolutionary history of symbiotic associations in Cinara species suggests an ancestral acquisition of Serratia symbiotica as an obligate co-symbiont, although the presence of other bacteria in some species indicates that replacement events have occurred. More recently, genome analysis of Serratia symbiotica strains associated have shown that these symbionts exhibit different genomic characteristics ranging and variations in their shape and localisation in bacteriocytes. These data seem to show a gradient of changes in the transition from a facultative life-style to obligate endosymbiont in which we observe all of the (now obligate) co-symbionts of Cinara. During this phd, using phylogenomics, we inferred the evolutionary history of Serratia symbiotica within Cinara and highlighted multiple independent acquisitions of this bacterium as a co-obligate symbiont of Cinara. These transitions from facultative to obligate life-style are associated with genome reductions and low G-C content that are more or less important depending on the lineage, revealing the relative age of the symbiotic association with Serratia. Among the inferred acquisition events, one in particular led to co-speciation over about 20 Ma of the three partners of the nutritional symbiosis (Cinara, Buchnera and Serratia). In this clade, we observed stable cellular and genomic structures with highly reduced genomes and low G-C content for both co-symbionts. Furthermore, the analysis of the substitution rates of each partner allowed us to describe for the first time a parallel evolution between the two symbionts and their host. Further analysis of the gene composition of the co-symbiotic bacteria in this clade revealed strong complementation for the production of nutrients required by the host. Furthermore, the analysis of their set of genes revealed that they are under strong purifying selection. In addition an experimental approach aimed at quantifying the symbionts during development on three Cinara species suggest that aphid species differ in their capacity to regulate the co-symbiont Serratia. This difference is observed between two Cinara species for which the Serratia originated from independent acquisitions and in which its localisation is different. Finally, a genomic comparison analysis on APSE phages (integrated bacteriophage) present in Cinara co-symbionts and providing defence against parasitoids allowed a description the diversity of APSEs and their genome evolution in aphids. This analysis also showed that mobile elements could play a role in the acquisition of new genes in the defensive toxin cassette. Altogether, this study reveals a dynamic multi-partner endosymbiosis where the new partner is recurrently replace
GUO, JING QUAN. "Transmission par pucerons des luteovirus de la jaunisse nanisante de l'orge (jno) : de l'etude de l'interaction virus-aphide a l'estimation du risque epidemique." Paris 11, 1995. http://www.theses.fr/1995PA112453.
Moores, Graham David. "Biochemistry of resistance in Myzus persicae and Aphis gossypii." Thesis, University of Bedfordshire, 1997. http://hdl.handle.net/10547/621850.
Stewart, Ashley. "Molecular interactions among soybean aphids and aphid-resistant soybean." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574777162373585.
Wadleigh, Richard Walter. "Reduced oxidative metabolism as a resistance mechanism in parathion-resistant strains of the green peach aphid, Myzus persicae (Sulz.) (Aphidae: Hemiptera) from Ohio /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487262513410293.
Hopkins, Graham Wyn. "Rarity of tree aphids with particular reference to the birch aphid Monaphis antennata (Kaltenbach)." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338048.
Blande, James D. "Differential signalling from specialist and generalist Brassica feeding aphids to differentially adapted aphid parasitoids." Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402402.
Peng, Zhongkui. "Feeding determinants in aphids with special reference to the Rose Aphid Macrosiphum rosae (L.)." Title page, table of contents and introduction only, 1991. http://web4.library.adelaide.edu.au/theses/09PH/09php398.pdf.
Tosh, Colin Robert. "Host plant specialisation in the black bean aphid, Aphis fabae." Thesis, University of York, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298436.
Diaz-Montano, John. "Components of soybean resistance to the soybean aphid, Aphis glycines Matsumura." Thesis, Manhattan, Kan. : Kansas State University, 2006. http://hdl.handle.net/2097/185.
Burdick, Steven Curtis. "Interactions between Ultraviolet Light and Soybean Aphid, Aphis Glycines Matsumura (Hemiptera: Aphididae)." Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/27225.
Webster, Ben. "Olfactory basis of host-recognition in the black bean aphid, Aphis fabae." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5272.
Saheed, Sefiu Adekilekun. "Plant aphid interactions : effects of diuraphis noxia and rhopalosiphum padi on the structure and function of the transport systems of leaves of wheat and barley." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1003794.
Laubscher, Jacobus Martin. "The effect of aphid lethal paralysis virus (ALPV) on the biology of grain aphids in the Western Cape." Doctoral thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/21980.
Chandler, Simon Michael. "Molecular studies of symbiotic proteobacteria in the black bean aphid (Aphis fabae Scopoli)." Thesis, University of York, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428528.
Hamid, Mohd Norowi Bin. "Effect of predators on population dynamics of green peach aphid on flue-cured tobacco in Virginia." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/53128.
Master of Science
Jimoh, Mahboob Adekilekun. "Comparative study of the feeding damage caused by the South African biotypes of the Russian wheat aphid (Diuraphis noxia Kurdjumov) on resistant and non-resistant lines of barley (Hordeum vulgare L.)." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1003770.
Ohnesorg, Wayne J. "Non-target effects of soybean aphid, Aphis glycinces Matsumura (Hemiptera: Aphididae), management in Iowa." [Ames, Iowa : Iowa State University], 2008.
Brunner, Samantha Marie. "Impact of Nitrogen and Rhizobial Seed Inoculants on Soybean Aphid (Aphis Glycines Matsumura) Densities." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26560.
Behrens, Nicholas Scott. "Pan trapping soybean aphids, Aphis glycines Matsumura (Hemiptera: Aphididae), using sex pheromones and plant volatiles." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1476273.
Warren, Peter L., and Jeff Schalau. "Aphids." College of Agriculture, University of Arizona (Tucson, AZ), 2014. http://hdl.handle.net/10150/324020.
Sacranie, Sattar Farouk. "An investigation on the effect of Russian wheat aphid (Diuraphis noxia Kurdjumov) population growth and feeding damage on selected barley (Hordeum vulgare L.) cultivars under ambient and elevated CO2." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/50311.
Hough, Ashley Rose. "The indirect and direct effects of temperature and host plant resistance on population growth of soybean aphid (Aphis glycines) biotype 1." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/32584.
Department of Entomology
James R. Nechols
Temperature has an important indirect impact on pest populations. Direct effects occur, but also may result from temperature-induced changes in plant quality, including the expression of host plant resistance traits. Therefore, I examined both indirect and direct effects of temperature on biotype 1 soybean aphids (SBA), Aphis glycines, on a Rag1-resistant soybean variety and compared the effects with a susceptible variety to gain a better understanding of how temperature impacts SBA. Four aphid responses were evaluated: preimaginal development, survival to adulthood, number of progeny produced, and adult longevity. In the first experiment, I grew soybean seedlings to the V-0 stage at 25°C and then conditioned them for 0, 3 or 5 days at 20° or 30°C before infesting with a single first instar SBA at each of the two experimental temperatures. Based on previous literature for SBA, I hypothesized that conditioning plants at the lower temperature would cause resistance to break down and that longer exposure would exacerbate the effect. Results showed that conditioning soybeans to 20°C significantly reduced SBA survival, and the effect on survival increased with longer conditioning. Conditioning plants to 30°C had no significant effect on SBA survival. However, estimated population growth decreased as conditioning time increased at 30°C and this effect was also observed at 20°C. Thus, plant resistance may have increased at both temperatures. The second experiment compared SBA responses, including population growth, at four temperatures (15, 20, 25, and 30⁰C) on a Rag1-resistant and susceptible soybean variety. I predicted that SBA fitness would be lower at all temperatures on resistant soybeans, but the magnitude of differences between cultivars would not be uniform across temperatures. Results indicated that both temperature (highest and lowest) and plant resistance detrimentally affected SBA fitness. There was also a significant interaction between the two variables with respect to SBA survival. Survival was lower and development rates were slower on the resistant cultivar. SBA required more degree-days to develop on resistant soybeans compared to the susceptible cultivar. This information will aid soybean producers in implementing a cost-efficient IPM strategy involving Rag1 resistant soybeans to combat SBA under a range of temperatures.
Wulff, Jason A. "THE ROLE OF THE BACTERIAL ENDOSYMBIONT, ARSENOPHONUS, IN THE SOYBEAN APHID, APHIS GLYCINES." UKnowledge, 2014. http://uknowledge.uky.edu/entomology_etds/7.
Klingler, John Paul. "Phenotypic and molecular-genetic analysis of resistance to Aphis gossypii (cotton-melon aphid) in Cucumis melo (melon)." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/283992.
Rutz, Charlotte. "The energy budget of green apple aphids (Aphis pomi de Geer) (Homoptera: Aphididae), as influenced by nitrogen fertilization /." [S.l.] : [s.n.], 1993. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10176.
Orantes, Lucia C. "Population Genetics of Soybean Aphid: Elaborating Species Specific SNPs to test Bottleneck and Migration Hypotheses across North-central US and Canada." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1314029403.
Whalen, Rebecca Ann. "Density and Movement of Soybean Aphid, Aphis Glycines (Hemiptra: Aphididae) in Response to Temperature and Resistant Soybean Plants." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26546.
Letsoalo, Isaac Motsoeng. "Evaluation of introduced cowpea breeding lines for Aphid (Aphis Craccivora) and bruchid (Callosobruchus Rhodensiansus) resistance in South Africa." Thesis, University of Limpopo, 2015. http://hdl.handle.net/10386/1775.
Mekdaschi, Studer Rima. "Interactions between green apple aphids (Aphis pomi De Geer) and apple plants (Malus domestica Borkh.) subjected to water stress /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10704.
Irving, Philabeg. "Characterisation of aphid proteins as targets for aphid control." Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368227.
MELO, Ricardo Lopes de. "Alternativas de controle de afídeos no cultivo da couve (Brassica oleracea) com ênfase a A Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae)." Universidade Federal Rural de Pernambuco, 2012. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6060.
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Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae) is a pest with Kale, in the absence of pesticides registered in Brazil for its control. The goal of this research was to evaluate the biological control with entomopatogênicos fungi and its association with Neem oil in aphids of Kale, with emphasis to L. erysimi. The participation of L. erysimi in complex of aphids-pest of kale in Pernambuco was evaluated. Among six municipalities monitored, L. erysimi was more frequent in João Alfredo (68,7%), Recife (63,9%) and Vitória de Santo Antão (74,6%). Cycloneda sanguinea (L.) (Coleoptera: Coccinelidae), Lysiphlebus testaiceipes (Cresson) (Hymenoptera: Aphidiidae), Lecanicillium muscarium (Petch) Zare & Gams, and Syrphidae were noted. Strains Beauveria bassiana URPE 27 and L. muscarium URPE 28 of were elected as more virulent, causing in nymphs mortality rate of 83% and 77%, survival 2,1 and 3,3 days and Lethal Concentration (LC50) of 2,4x107con./ml and 7,3x106con./ml, respectively. The neem oil when sprayed shower LC50 of 0.2mL/l and 3.7mL/l applied in immersion. The combination of neem with B. bassiana URPE 27 and L muscarium URPE 28 was compatible. In the field, the strain URPE 27 caused relative efficiency of 89.6%, 88.3% and 90.4%, while URPE 28 promoted 45.5%, 62% and 64.4% against L. erysimi, Myzus persicae (Sulzer) and Brevicoryne brassicae (L.) (Hemiptera: Aphididae), respectively. The association with the neem oil was more favorable to the strain URPE 27. In field monitoring in Viçosa-MG, to evaluate the effectiveness of Zoophthora aphids (Hoffman in Fresenius) Batko (1964b) on L. erysimi and M. persicae, which showed average proportion of infected of 0.24 and 0.30, respectively. The third instar stage L. erysimi more likely.
Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae) é uma praga relevante para couve, não existindo agrotóxicos registrados no Brasil para o seu controle. O objetivo desta pesquisa foi avaliar o controle biológico com fungos entomopatogênicos e a sua associação com óleo de nim em afídeos da couve, com ênfase para L. erysimi. A participação deste, no complexo de pragas da couve em Pernambuco foi avaliada. Dentre os seis municípios monitorados L. erysimi mostrou-se mais freqüente em João Alfredo (68,7%), Recife (63,9%) e Vitória de Santo Antão (74,6%). Cycloneda sanguinea (L.) (Coleoptera: Coccinelidae), Lysiphlebus testaiceipes (Cresson) (Hymenoptera: Aphidiidae), Syrphidae e Lecanicillium muscarium (Petch) Zare & Gams foram constatados. As linhagens de Beauveria bassiana URPE 27 e de Lecanicillium muscarium URPE 28 foram eleitas como mais virulentas, causando em ninfas taxa de mortalidade de 83% e 77%, sobrevivência 2,1 e 3,3 dias e Concentração Letal (CL50) de 2,4x107con/ml e 7,3x106con/ml, respectivamente. O óleo de nim, quando pulverizado apresentou CL50 de 0,2mL/l e de 3,7mL/l, aplicado em imersão. O óleo em concentração de 1,25mL/l causou mortalidade de 80% das ninfas em 24horas. Efeito fitotóxico foi promovido em concentrações acima de 2,5mL/L. A associação do nim com B. bassiana URPE 27 e L. muscarium URPE 28 mostrou-se compatível. Em campo, a linhagem URPE 27 causou eficiência relativa de 89,6%, 88,3% e 90,4%, enquanto que URPE 28 promoveu 45,5%, 62% e 64,4% contra L. erysimi, Myzus persicae (Sulzer) e Brevicoryne brassicae (L.) (Hemiptera: Aphididae), respectivamente. A associação com o óleo de nim mostrou-se mais favorável com a linhagem URPE 27. Em monitoramento de campo em Viçosa- MG, avaliou-se a eficácia de Zoophthora aphids (Hoffmann in Fresenius) Batko (1964b) sobre L. erysimi e M. persicae, que apresentou proporção média de infectados de 0,24 e 0,30, respectivamente. O terceiro ínstar foi a fase de L. erysimi mais susceptível.
Matsiliza, Babalwa. "Observations of selective feeding of the aphid, Sitobion yakini (eastop) on leaf blades of barley (Hordeum vulgare L)." Thesis, Rhodes University, 2000. http://eprints.ru.ac.za/37/.
Kaakeh, Walid. "The effect of spirea aphid (Homoptera: aphididae) feeding and nitrogen fertilization on the growth of young apple trees, with comparisons to apple aphid." Diss., This resource online, 1989. http://scholar.lib.vt.edu/theses/available/etd-11072008-063502/.
TEIXEIRA, Ana Caroline de Azevedo. "Avaliação de fungos entomopatogênicos para o controle de Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) em pepino Cucumis sativus L. e desenvolvimento de um inseticida à base de Beauveria bassiana (Bals.) Vuill." Universidade Federal Rural de Pernambuco, 2015. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5519.
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Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
Cucumber crop has its production affected by the attack of the aphid Aphis gossypii Glover (Hemiptera: Aphididae), which colonizes the plant throughout all developmental stages. The use of chemical insecticides to control it has generated serious problems such as the emergence of resistant populations to the active ingredients used. This work aimed to evaluate fungus preparations based on entomopathogenic to control this insect pest in cucumber plants, and develop an insecticide the base of Beauveria bassiana (Bals.) Vuill. Under laboratory conditions, the three most promising isolates were tested, CG 864, PL 63 and IBCB 66,with five concentrations of conidia (1x105, 1x106, 1x107, 1x108 and 1x109 conidia / ml) and control (sterile water + Tween 80) . In the third stage of the experiments studies were conducted involving two preparations of biological insecticide: a) an aqueous suspension [pure conidia of B. bassiana 864 CG + 0.01% Tween 80; used as a standard] b) formulation of oil dispersion [conidia pure vegetable oil emulsifiable +] CG 864 isolated, and diluted with water for spraying the concentrations of 0.5; 1; 2 and 4% oil. The fungus preparations were standardized to have 1.0 x 107 spores / mL in applied spray. Isolates of the fungus B. bassiana were more virulent aphid A. gossypii that isolates Metarhizium anisopliae (Metschn.) Sorok. and Lecanicillium longisporum (Zimmerman) Zare & Gams. The isolates CG 864, IBCB 66 and PL 63 of the B. bassiana were the most virulent. B. bassiana preparations reduced the aphid population A. gossypii, with control efficiencies of 52.3% to 83.8%, however, there was no difference in the pest population density between the oil dispersion and the aqueous suspension conidia.
A cultura do pepino tem sua produção afetada pelo ataque do pulgão Aphis gossypii Glover (Hemiptera: Aphididae), que coloniza a planta durante todo seu estágio fenológico. O uso de inseticidas químicos para seu controle tem gerado sérios problemas, como o surgimento de populações resistentes aos princípios ativos utilizados. Este trabalho teve por objetivo avaliar preparações à base de fungo entomopatogênico para controle desse inseto-praga em plantas de pepino e desenvolver um inseticida a base de Beauveria bassiana (Bals.) Vuill. Em condições de laboratório, os três isolados mais promissores CG 864, PL 63 e IBCB 66, foram testados, com cinco concentrações de conídios (1x105; 1x106; 1x107; 1x108 e 1x109 conídios/mL) e a testemunha (água esterilizada +Tween 80). Foram realizados estudos envolvendo duas preparações do inseticida biológico: a) suspensão aquosa (conídios puros de B. bassiana CG 864 + Tween 80 a 0,01%), utilizada como padrão e b) formulação em dispersão oleosa [conídios puros + óleo vegetal emulsionável], do isolado CG 864, sendo diluída em água para pulverização nas concentrações de 0,5, 1; 2; 4; 8 e 16% de óleo. As preparações do fungo foram padronizadas para 1,0 x 107 conídios/mL na calda aplicada. Isolados do fungo B. bassiana foram mais virulentos ao pulgão A. gossypii que os isolados de Metarhizium anisopliae (Metschn.) Sorok. e Lecanicillium longisporum (Zimmerman) Zare & Gams. Os isolados CG 864, IBCB 66 e PL 63 de B. bassiana foram os mais promissores. Preparações de B. bassiana reduziram a população do pulgão A. gossypii, com níveis de eficiência de controle de 52,3% a 83,8%, porém, não houve diferença na densidade populacional da praga entre a dispersão oleosa e a suspensão aquosa de conídios.
Knowles, Tim C. "Alfalfa Aphid Complex." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/146689.
The alfalfa aphid discussed in this publication includes blue alfalfa aphid, pea aphid, and the spotted alfalfa aphid. This publication discusses the biology of these alfalfa aphids, the damages they cause, the resistant varieties and biological control, and their monitoring and treatments.
Hodgson, David James. "Evolutionary ecology of aphids." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299855.
Kundu, Ranajit. "Host alternation in aphids." Thesis, University of East Anglia, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241092.
Kuklinski, Frank. "The cotton pests in Madagascar with special emphasis on the cotton aphid Aphis gossypii (Hom.: Aphididae) and its natural enemies /." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=959594116.
Chen, Jian-Qun. "Caractérisation biologique et chimique de la résistance monogénique du melon (gène Vat, pour virus aphid transmission) au puceron Aphis gossypii." Lyon, INSA, 1996. http://www.theses.fr/1996ISAL0147.
The vat (for virus aphid transmission, monogenic, dominant) resistance gene in melon governs both antixenosis towards the melon aphid Aphis gossypii Glover and a resistance to non-persistent virus transmission. We investigated the behavioral features and tissue localization of the antixenosis resistance by EPG and bioassay, and compared the chemical composition in amino compounds, peptides, proteins and pyrazole derivatives of the phloem sap collected from two isogenic lines of melon (Cucumis melo L. ), carrying or not the vat gene. All behavioral and chemical data indicate that this resistance is constitutive. EPG analysis of aphids probing on the resistant genotype clearly showed that chemical cues were perceived very early after plant contact, during the penetration phase as well as after phloem localisation, revealing that the effects of the vat gene are unambiguously expressed in the pre-phloem and phloem. This was confirmed by bioassay that demonstrated the presence of extractable chemical factors discriminating the genotypes
Storer, John Robert Gerard. "An investigation into the natural plant resistance of autumn flowering chrysanthemums to the aphids Myzus persicae (Sulzer) and Aphis gossypii glover." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317636.
Glinwood, Robert Thomas. "Responses of aphid parasitoids to aphid sex pheromones : laboratory and field studies." Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/13861/.
Chiozza, Mariana Victoria. "Exploring soybean aphid (Aphis glycines Matsumura) resistance germplasm across the Midwest and its relationship with free amino acids accumulation in leaves." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1468149.
McVean, Ross Iolo Kester. "Forecasting pea aphid outbreaks." Thesis, University of East Anglia, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389386.
Umeda, K., G. Gal, and J. Murrieta. "Aphid Control in Broccoli." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/221657.
Umeda, K., G. Gal, and J. Murrieta. "Aphid Control in Spinach." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/221676.
Jenkins, Rhodri Lloyd. "Colour and symbionts of aphids." Thesis, University of East Anglia, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294089.
Couldridge, Clare Elizabeth. "Aphid-plant interactions : investigating plant molecular response with implications for aphid pest control." Thesis, University of Birmingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487497.
Reed, Thomas David. "Quantification of tobacco aphid, Myzus nicotianae Blackman, injury to flue-cured tobacco, Nicotiana tabacum (L.) /." This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07282008-135337/.
Winter, Rebekah Sian. "Reproductive isolation in the Aphis fabae complex." Thesis, University of East Anglia, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296810.