cotton aphid
Secondary Metabolites of the Entomopathogenic Fungus, Cladosporium cladosporioides and its Relation to Toxicity of Cotton Aphid, Aphis gossypii (Glov.)
... Cotton aphid, Aphis gossypii is a serious pest damaging cultivated crops either directly by sucking plant sap or indirectly by transmission of many plant viruses leading to great loss of crop ...
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Environmental and Host Plant Effects on Insecticide Susceptibility of the Cotton Aphid (Homoptera: Aphididae)
... the cotton aphid (Aphis gossypii Glover) in California is often ...phenomenon. Cotton aphids are more resistant to some insecticides before the period of significant use and exposure compared with ...
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On the control of the cotton aphid, Aphis gossypii Glov. (Hemiptera: Aphididae), on cucumber in greenhouses
... the cotton aphid, Aphis gossypii ...cucumber. Aphid infestation occurred from week 6 to week 12 in 2015 and from week 4 to week 11 in ...the aphid parasitoid Aphidius colemani Viereck and ...
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Effect of Constant Temperature on Development and Reproduction of the Cotton Aphid (Aphis gossypii) (Glover) (Hemiptera: Aphididae) on Gossypium hirsutum in Laboratory Conditions
... in cotton aphid population ...on cotton seedlings at different temperatures and a photoperiod of 18:6 (L:D) were studied by Akey and Butler ...and aphid development including the effects of ...
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The regulation of three new members of the cytochrome P450 CYP6 family and their promoters in the cotton aphid Aphis gossypii by plant allelochemicals
... The luciferase activity driven by the deletion construct pES1 of the CYP6CY19 promoter region was 1.9-fold higher relative to the untreated con- trols under the inductions of quercetin a[r] ...
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Tri Trophic Interactions within Potato Agro Ecosystem, Qassim, KSA
... Potatoes agro-ecosystem is considered a complex of many trophic interactions, which potato plants are forming the basis of the food chains and webs. There are many aspects of organism’s physiology; ecology and behavior ...
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Foliar Antioxidant Enzyme Responses in Cotton after Aphid Herbivory
... Cotton aphid (Aphis gossypii ...alters cotton (Gossypium hirsutum ...of cotton foliar antioxidant enzymes after aphid feeding was ...examined. Cotton aphids were col- lected from ...
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Chemical Compositions of Ligusticum chuanxiong Oil and Lemongrass Oil and Their Joint Action against Aphis citricola van der Goot (Hemiptera: Aphididae)
... in several countries confirmed that some plant essential oils not only repel insects, but also have contact and fumigant activities against specific pests, and fungicidal actions against some important plant pathogens ...
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Factors Affecting Biological Control of Myzus persicae using Aphidius colemani.
... To understand the ways PGRs may affect natural enemy efficacy, we began by looking at the percentage of adult parasitoids successfully emerging from their hosts. We found a significantly lower percentage of adult ...
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Aphid performance changes with plant defense mediated by Cucumber mosaic virus titer
... We also found that number of winged aphids in- creased with the increase of viral titer. Many factors, such as environmental conditions, aphid density and host plant quality, may influence wing production [43]. ...
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Plasma-Aided Antimicrobial and Insect Repellant Finishing of Cotton
... In similar studies conducted by Simionescu and Sun, the plasma grafting of cotton, polyester, and wool fibers was examined. It was shown that after plasma treatment and grafting there was altered surface ...
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SEASONAL INCIDENCE OF SUCKING PESTS AND THEIR NATURAL ENEMIES IN COTTON
... on cotton during Kharif season of 2014-15. It was observed that cotton was affected by group of sucking pests ...viz., aphid, leaf hoppers, thrips, whitefly and their damage continued throughout the ...
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The sub Saharan Africa Cotton Sector. Selected Features
... world cotton prices combined with an appreciating exchange rate and inefficient local marketing and processing, heavily affected the performance of the sector with cotton production dropping to less than ...
244
A Plant-Feeding Nematode Indirectly Increases the Fitness of an Aphid
... Figure 3. Quantification of endogenous salicylic acid and jasmonic acid and analysis of PR- gene expression by qRT-PCR in the leaves of potato plants (Solanum tuberosum cv. Désirée) infected with both the potato cyst ...
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Cross habitat usage by crop aphids and their parasitoids in the cropnoncrop interface in an organic vegetable farm
... Interestingly, a few host plants in the non- cultivated habitat hosted parasitized aphids that do not cause damage to crops (BLACKMAN and EASTOP, 2000), which make these plants highly suitable for biological control. ...
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Changes in Aphid Host Plant Diet Influence the Small RNA Expression Profiles of Its Obligate Nutritional Symbiont, Buchnera
... the aphid sublines or is a variable response to its specialized host plant, ...39). Aphid stylectomy experiments have also shown that fava bean and alfalfa have different concentrations of arginine, ...
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Insecticidal activity of chitosans of different molecular weights and chitosan metal complexes against cotton leafworm Spodoptera littoralis and oleander aphid Aphis nerii
... Test pests. A susceptible strain of the cotton leaf worm S. littoralis Boisduval (Lepidoptera: Noctuidae) was used for bioassay. This strain was reared for many years in a laboratory of Economical Entomology ...
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SCREENING FOR RESISTANCE TO APHID IN BARLEY
... oat aphid was re- corded through visual observation on six varieties of ...wheat aphid, Diuraphis noxia (Mordvilko) and the bird cherry oat aphid ...species. Aphid colonies fed and reproduced ...
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On Fuzzy Control of Soybean Aphid
... [3] Ragsdale, D.W., McCornack, B.P., Venette, R.C., Potter, B.D., MacRae, I.V., Hodgson, E.W. and O’Neal, M.E. (2007) Economic Threshold for Soybean Aphid (Hemiptera: Aphididae), Journal of Economic Entomology , ...
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Aphid resistance in wheat varieties
... A very diverse set of hexaploid wheats was tested and while a few showed some reduction in aphid preference several were more preferred than Solstice. The varieties carrying resistance genes to other insect pests ...
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