Results 251 to 260 of about 19,360 (271)

UDP-glycosyltransferases contribute to spirotetramat resistance in Aphis gossypii Glover

Pesticide Biochemistry and Physiology, 2020
Uridine diphosphate (UDP)-glycosyltransferases (UGTs) catalyze the conjugation of small lipophilic endogenous and exogenous compounds with sugars to produce water-soluble glycosides, playing an important role in insect endobiotic regulation and xenobiotic detoxification. In this study, two UGT-inhibitors, sulfinpyrazone and 5-nitrouracil, significantly
Qingli Shang, Qingli Shang, Yiou Pan, Xiwu Gao, Xuewei Chen, Shuyuan Wen, Xuemei Liu, Fayi Tian, Xiaochun Zeng   +8 more
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Biological Separation of Aphis Gossypii Glover and Aphis: Sedi Kaltenbach1, 2

Annals of the Entomological Society of America, 1955
For a number of years there has been some confusion concerning the life cycle of the melon aphid, Aphis gossypii Glover. Patch (1925) gave accounts of the sexual forms of an aphid on Sedum which she considered to be this species. The males produced on Sedum were described as wingless. This is an unusual condition since in related aphid species having a
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Monitoring of Aphis gossypii Using Greenseeker and SPAD Meter

Journal of the Indian Society of Remote Sensing, 2016
Cotton aphid (Aphis gossypii) is considered as one of the most important agriculture pest for the cotton production. However, it is generally labor-intensive and time-consuming to obtain some information of Cotton aphid with conventional methods through direct measurement by sampling in the field. This study explores the potential of using a new method
Xu Tao, Ze Zhang, Xin Lü, Guolong Zhang, Yinxi Du   +4 more
openaire   +2 more sources

Host Races of Aphis gossypii (Homoptera: Aphididae) on Cucumber and Chrysanthemum

Environmental Entomology, 1994
The aphid Aphis gossypii Glover generally is seen as a highly polyphagous species with mainly parthenogenetic reproduction. This study shows that genotypes living on cucumber and chrysanthemum behave as genetically distinct host races, Little or no reproduction occurs after reciprocal host transfers. Rearing for three generations of the cucumber clones
Guldemond, J.A., Tigges, W.T., de Vrijer, P.W.F.   +2 more
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The feeding behaviour and life history changes in imidacloprid-resistant Aphis gossypii Glover (Homoptera: Aphididae).

Pest Management Science, 2020
BACKGROUND Imidacloprid (IMI) is a major neonicotinoid insecticide used to control Aphis gossypii Glover. However, resistance to IMI developed rapidly in A. gossypii.
Li Wang, Qinqin Wang, Qiyuan Wang, Changhui Rui, Li Cui   +4 more
semanticscholar   +1 more source

Probing Behavior of Aphis gossypii on Resistant and Susceptible Muskmelon12

Journal of Economic Entomology, 1978
Microscopic examination of stylets and sheaths and electronic recording of the probing behavior of the melon aphid on resistant and susceptible muskmelon revealed pronounced differences in probing on the 2 lines. Relative to the susceptible line, ‘Top Mark,’ stylets and sheaths in the resistant line, 91213, had significantly more branches ending in the
George G. Kennedy, M. G. Kinsey, D. L. McLean   +2 more
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Suppression of Populations of Aphis gossypii and A. spiraecola by Soap Sprays1

Journal of Economic Entomology, 1974
A specially formulated soap spray was effective for removal of Aphis gossypii Glover and A. spiraecola Patch on highway plantings of Pyracantha in California. Water alone produced a removal rate of 46–47% for both species, and a general pattern of increased removal rate with higher concentrations of the soap solution was noted.
Nancy F. Coe, James E. Milstead, Richard J. Brand, Dudley E. Pinnock   +3 more
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Effects of pyrazole compounds from melon on the melon aphid Aphis gossypii

Phytochemistry, 1999
Abstract Two secondary compounds of the genus Cucumis , pyrazole and β (pyrazol-1-yl) l -alanine ( β PA), were found and measured in the phloem sap of melon. The effects of these compounds on attractivity, growth inhibition and mortality were tested on aphids from cucurbit and noncucurbit hosts. β PA had no noticeable effect on the aphids tested.
Jian-Qun Chen, Jian-Qun Chen, Bernard Delobel, Yvan Rahbé   +3 more
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Transcriptional responses of detoxification genes to four plant allelochemicals in Aphis gossypii

Journal of Economic Entomology, 2017
Aphis gossypii Glover (Hemiptera: Aphididae) can damage a variety of agricultural crops, so it is very important for cotton aphids to evolve adaptive mechanisms to various allelochemicals from host plants. Our results aim to provide a fundamental and rich resource for exploring aphid functional genes in A. gossypii.
Ying Liu, Kangsheng Ma, Xiwu Gao, Pingzhuo Liang, Fen Li, Xuewei Chen   +5 more
openaire   +3 more sources

A cost of alarm pheromone production in cotton aphids, Aphis gossypii

Naturwissenschaften, 2004
The sesquiterpene, (E)-beta-farnesene, is used by many aphid species as an alarm pheromone to warn related individuals of predation. Disturbed cotton aphids, Aphis gossypii Glover, released (E)-beta-farnesene into the air as detected by solid phase microextraction and gas chromatography mass spectrometry (GC-MS).
openaire   +3 more sources