Log in

Relevant bibliographies by topics / Aphide / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Aphide.

Dissertations / Theses on the topic 'Aphide'

Author: Grafiati

Published: 15 June 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Aphide.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

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.

Full text

Abstract:

Des systèmes pluri-symbiotiques ont été mis en évidence chez plusieurs espèces de pucerons (Hemiptera : Aphididae) et plus particulièrement chez les espèces du genre Cinara. La caractérisation taxonomique des symbiontes présents chez une soixantaine d'espèces de Cinara a permis de déterminer que Serratia symbiotica est la bactérie la plus fréquemment retrouvée comme symbionte secondaire obligatoire. De plus, la reconstruction de l'histoire évolutive des associations symbiotiques chez Cinara semble indiquer une acquisition ancestrale de Serratia symbiotica comme co-symbionte obligatoire, même s

APA, Harvard, Vancouver, ISO, and other styles

2

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.

Full text

Abstract:

Le present travail a pour objet l'etude de l'interaction virus-aphide afin de mieux apprecier le lien entre puceron porteur (virulifere) et la transmission des virus (pav, mav, rpv) de la jno. Les outils mis au point nous permettent de preciser le comportement de differentes biotypes et especes d'aphides vis-a-vis de ces virus et l'analyse des donnees fournies par les tours agraphid et les pots pieges ; elements actuels d'estimation du risque jno en europe. La methode immuno-pcr a ete adaptee pour amplifier les 3 luteovirus dans les pucerons. La sensibilite de cette rt-pcr permet de detecter l

APA, Harvard, Vancouver, ISO, and other styles

3

Moores, Graham David. "Biochemistry of resistance in Myzus persicae and Aphis gossypii." Thesis, University of Bedfordshire, 1997. http://hdl.handle.net/10547/621850.

Full text

Abstract:

The insecticide resistance mechanisms present in the aphids Myzus persicae and Aphis gossypii have been characterised and sensitive biochemical assays have been developed to monitor their presence in individual aphids. It was found that enhanced esterase activity is present in both aphid species, and that this enhanced activity results from the presence of larger amounts of the same enzyme rather than the presence of a more efficient enzyme. In Myzus persicae this mechanism alone is sufficient to confer high levels of insecticide resistance. In Aphis gossypii, it appears that the presence of i

APA, Harvard, Vancouver, ISO, and other styles

4

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

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.

Full text

Abstract:

Bibliography: leaves 170-189. This thesis looks at aphid feeding determinants by type and location. It examines the role of leaf surface chemicals in the discrimination of host plants and the deterrent effect of catechin and its oxidative condensation products.

APA, Harvard, Vancouver, ISO, and other styles

9

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

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.

Full text

Abstract:

Global increases in ultraviolet (UV) radiation have led to greater interest in its current and potential effects on organisms, including insects and plants. Here we report the short-term effects of UV on soybean aphids (Aphis glycines Matsumura), a common phytophagous pest of soybeans. We examined how modified amounts of UV radiation affect soybean aphids by focusing on changes in 1) soybean aphid densities and 2) within plant distribution. In a laboratory experiment artificially adding UV decreased soybean densities compared to a low UV control. In a field experiment blocking UV had minimal e

APA, Harvard, Vancouver, ISO, and other styles

12

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.

Full text

Abstract:

Behavioural and electrophysiological responses of winged virginoparous Aphis fabae to volatile compounds of faba bean, Vicia faba, were studied and semiochemicals used in host location identified. In olfactometer bioassays, aphids responded positively to V. faba volatiles from an intact plant. This response also occurred when volatiles from an air entrainment sample of a V. faba plant were tested. Coupled gas chromatography-electroantennography revealed the presence of 16 electrophysiologically active volatile compounds in the air entrainment sample and 15 of these were identified as (E)-2-hex

APA, Harvard, Vancouver, ISO, and other styles

13

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.

Full text

Abstract:

The infestation of the cultivated grain crops by phloem feeding aphids has generated a great deal of interest over the years, due to the serious damage they cause to the crops and yield losses that result. The mechanism of the interaction between aphids and host plants remains largely unknown in spite of efforts to understand the basis of aphid feeding on grain crops. Greater efforts are required to explain the mechanism(s) of this interaction in order to achieve sustainable agriculture. This thesis focused on an investigation of the mechanism of feeding by the Russian wheat aphid, Diuraphis n

APA, Harvard, Vancouver, ISO, and other styles

14

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.

Full text

Abstract:

Aphid lethal paralysis virus (ALPV) could be detected by indirect immunofluorescent technique in dissected aphids. This technique was found to be more sensitive when compared to DAS-ELISA. The choice of a sensitive, low cost .detection method was of importance to test for low levels of virus in infected aphid body tissues where inapparent infection could cause detection problems. ALPV was visualized in ultrathin sections of diseased aphid body tissues by immunocytochemistry utilizing immunogold label. ALPV antigen was detected in the ovariole tissue, tracheocytes, symbionts of the mycetocytes,

APA, Harvard, Vancouver, ISO, and other styles

15

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

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.

Full text

Abstract:

The effects of indigenous predators on green peach aphid (GPA), Myzus persicae (Sulzer), populations on flue-cured tobacco were evaluated in 1985 and 1986. The most common GPA predators found on tobacco were convergent lady beetle (CLB) (Hippodamia convergens), syrphid flies, Geocoris spp., Jalysus wackhimi, Nabis spp., Chrysopa spp., Micromus sp., and several other species coccinellids. However, CLB was the only predator that had a numerical response to increasing GPA density on tobacco. In the laboratory, the minimum number of GPA required to initiate reproduction in CLB, and the conversion

APA, Harvard, Vancouver, ISO, and other styles

17

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.

Full text

Abstract:

Cereal crop productivity is hampered when these plants are infested by phloem feeding aphids. A great deal of research has been carried out with the direct aim of a clearer understanding of the mechanism involved in the interaction between aphids and their host plants. Research has directly or indirectly been geared towards enhanced plant productivity and achieving sustainable agriculture. Barley (Hordeum vulgare L.) is an important small grain crop in South Africa, whose crop performance is negatively affected by fluctuations in weather patterns as well as by agricultural pests. One of the in

APA, Harvard, Vancouver, ISO, and other styles

18

Ohnesorg, Wayne J. "Non-target effects of soybean aphid, Aphis glycinces Matsumura (Hemiptera: Aphididae), management in Iowa." [Ames, Iowa : Iowa State University], 2008.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

19

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.

Full text

Abstract:

Soybeans are able to obtain nitrogen from two different sources, nitrogen found in the soil (e.g. from fertilizers) and biologically fixed nitrogen (from symbiotic bacteria called rhizobia). Nitrogen source and degree of reliance on N-fixation can impact plant nitrogen dynamics, which has the potential to impact above-ground herbivore performance. We examined the impact of nitrogen availability and rhizobial association on soybean aphid biology and reproduction in a series of greenhouse and field experiments. Aphid establishment on plants was not significantly affected in any experiment. Howev

APA, Harvard, Vancouver, ISO, and other styles

20

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Warren, Peter L., and Jeff Schalau. "Aphids." College of Agriculture, University of Arizona (Tucson, AZ), 2014. http://hdl.handle.net/10150/324020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

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.

Full text

Abstract:

The Russian wheat aphid (RWA) (Diuraphis noxia Kurdjumov) is a major pest of cultivated small grains. It is particularly devastating because of is high reproductive rate which results in the growth of large populations which become damaging to its host plants. Development of resistant barley (Hordeum vulgare L.) cultivars is complicated as resistance is polygenic. As a result, the industry remains at risk now that the RWA has spread throughout South Africa. It has, as recently as, 2013, been identified in the SW Cape, which was previously geographically isolated. This is South Africa‟s princip

APA, Harvard, Vancouver, ISO, and other styles

23

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.

Full text

Abstract:

Master of Science<br>Department of Entomology<br>James R. Nechols<br>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: preim

APA, Harvard, Vancouver, ISO, and other styles

24

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.

Full text

Abstract:

Bacterial endosymbionts can have profound impacts on their host’s ecology. Notably, endosymbionts can protect their hosts against natural enemies and influence host plant interactions. The endosymbiont Candidatus Arsenophonus infects a wide taxonomic range of arthropod hosts, and is suspected of an uncharacterized mutualistic role in hemipterous insects. In the soybean aphid, Aphis glycines, an introduced pest of soybeans in the United States, Arsenophonus is the sole facultative endosymbiont. The focus of this dissertation is to characterize the role of Arsenophonus in the aphid, with an over

APA, Harvard, Vancouver, ISO, and other styles

25

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.

Full text

Abstract:

Aphis gossypii Glover (cotton-melon aphid) is a major pest of agriculture worldwide. Cucumis melo L. (melon) possesses monogenic resistance to this aphid, and is a good model for the study of aphid resistance mechanisms in plants. This dissertation presents analyses of the effects of the resistance gene on A. gossypii, and of the gene's effects on biochemical and molecular-genetic properties of melon plants. Nearly isogenic lines (NILs) of melon, either resistant or susceptible to A. gossypii, were compared for their influence on aphid life history traits and feeding behavior. The resistance t

APA, Harvard, Vancouver, ISO, and other styles

26

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

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.

Full text

Abstract:

Movement is one way herbivores respond to their host plant, yet the movement of relatively immobile insects has received little attention. We studied how the movement and density of apterous soybean aphids responds to a resistant soybean variety and different temperatures. In Chapter One, we examined aphid movement both within and between soybean plants that varied in their resistance to aphids. Aphids on resistant plants had a wider dispersal, apparently due to greater aphid movement. Consequently, aphids on resistant plants could move to neighboring susceptible plants, thereby increasing the

APA, Harvard, Vancouver, ISO, and other styles

29

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

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.

Full text

Abstract:

Submitted by (edna.saturno@ufrpe.br) on 2016-12-02T12:00:19Z No. of bitstreams: 1 Ricardo Lopes de Melo.pdf: 1316234 bytes, checksum: 08d9d42be60b63426f274a63eaa26109 (MD5)<br>Made available in DSpace on 2016-12-02T12:00:19Z (GMT). No. of bitstreams: 1 Ricardo Lopes de Melo.pdf: 1316234 bytes, checksum: 08d9d42be60b63426f274a63eaa26109 (MD5) Previous issue date: 2012-02-03<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae) is a pest with

APA, Harvard, Vancouver, ISO, and other styles

33

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/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

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/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

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.

Full text

Abstract:

Submitted by Mario BC (mario@bc.ufrpe.br) on 2016-08-30T13:40:23Z No. of bitstreams: 1 Ana Caroline de Azevedo Teixeira.pdf: 500119 bytes, checksum: c6f5c469790bac6fbe0bfe816ac29466 (MD5)<br>Made available in DSpace on 2016-08-30T13:40:23Z (GMT). No. of bitstreams: 1 Ana Caroline de Azevedo Teixeira.pdf: 500119 bytes, checksum: c6f5c469790bac6fbe0bfe816ac29466 (MD5) Previous issue date: 2015-02-27<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>Cucumber crop has its production affected by the attack of the aphid Aphis gossypii Glover (Hemiptera: Aphidida

APA, Harvard, Vancouver, ISO, and other styles

36

Knowles, Tim C. "Alfalfa Aphid Complex." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/146689.

Full text

Abstract:

4 pp.<br>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.

APA, Harvard, Vancouver, ISO, and other styles

37

Hodgson, David James. "Evolutionary ecology of aphids." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299855.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Kundu, Ranajit. "Host alternation in aphids." Thesis, University of East Anglia, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241092.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

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.

Full text

Abstract:

Le gène vat (pour virus aphid transmission) monogénique dominant chez le melon gouverne à la fois la résistance par antixénose contre le puceron du melon Aphis gossypii et une résistance à la transmission des virus non persistants. Nous avons étudié les caractéristiques comportementales et la localisation tissulaire de la résistance par EPG et par tests biologiques et nous avons comparé les compositions en composés aminés, en peptide, en protéines et en dérivés du pyrazole de la sève phloémienne récoltée chez deux lignées isogéniques de melon (Cucumis melo L. ) portant ou non le gène vat. Tout

APA, Harvard, Vancouver, ISO, and other styles

41

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

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/.

Full text

Abstract:

The behavioural responses of aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) to aphid sex pheromones were investigated in the laboratory and field. In a wind tunnel bioassay, Aphidius eadyi, Aphidius rhopalosiphi, Diaeretiella rapae, Ephedrus plagiator, Praon myzophagum and Praon volucre responded to the aphid sex pheromone components nepetalactone and nepetalactol. P. myzophagum reared on two different host aphid species showed different responses to combinations of nepetalactone and nepetalactol in the wind tunnel, indicating that long term laboratory rearing may influence parasitoid

APA, Harvard, Vancouver, ISO, and other styles

43

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

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.

Full text

Abstract:

In a small plot field test, imidacloprid (Provado®), oxydemeton- methyl (Metasystox-R®), RH -7988 (Aphisttar®, Rohm and Haas), pirimicarb (Pirimor®), methamidaphos (Monitor®), and endosulfan were effective in significantly reducing the number of aphids in broccoli within 4 days of treatment (DAT). At 14 DAT, Provado, Metasystox-R, and Monitor continued to exhibit a significant reduction of aphids relative to the untreated check Pymetrozine (CGA- 215944, Novartis) at 0.022 lb AI/A did not effectively reduce aphids in this test.

APA, Harvard, Vancouver, ISO, and other styles

46

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.

Full text

Abstract:

Several newly introduced insecticides that have potential for use in vegetable crops for aphid control were evaluated and demonstrated very good efficacy against green peach aphid (Myzus persicae). Field testing in spinach showed that CGA-293343 (Novartis) at the two rates tested significantly reduced the number of aphids relative to the untreated check. CGA-215944 (pymetrozine -Novartis) effectively reduced the number of aphids after two applications. Aphistar (RH- 7988 - Rohm and Haas) demonstrated the greatest reduction in the number of aphids per plant after each application. Provado (imid

APA, Harvard, Vancouver, ISO, and other styles

47

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.

Full text

Abstract:

The colour of the green and brown forms of Silobion avenae result from qualitative and quantitative differences in their carotene pigments. The green form contained mainly a-carotene (bicyclic), and the brown form mainly y-carotene (monocyclic), lycopene, torulene and 3', 4'-didehydrolycopene (acyclic). The total carotene content of the brown form was approximately three times higher than the green form. The striking pink colour of male Metopolophium dirhodum was the result of qualitative differences in carotenes present in the green vir'ginoparae of this species. To investigate the possibilit

APA, Harvard, Vancouver, ISO, and other styles

48

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

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/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!