Results 191 to 200 of about 4,961 (208)

The genetic structure of Aphis gossypii populations in Japanese fruit orchards

Entomologia Experimentalis et Applicata, 2011
The genetic structure of Aphis gossypii Glover (Hemiptera: Aphididae) populations was characterized using microsatellite analysis of insects sampled from pear and citrus orchards at three locations in the summer seasons of 2001 and 2003. These data will enable more precise forecasting of infestation and will be of value to the development of better ...
Ken Nakada, Satoshi Toda, Shinkichi Komazaki, Tomoko Shigehara, Hiroki Izawa, Shuji Kanazaki, Eiichirou Souda   +6 more
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Acquisition and transmission of selected CTV isolates by Aphis gossypii

Journal of Asia-Pacific Entomology, 2014
Abstract Citrus tristeza virus (CTV) is a severe threat to the citrus industry. Disease symptoms and severity may vary depending on the CTV isolates. These are responsible for the decline of trees grafted on sour orange rootstock, or stem pitting on some citrus commercial cultivars regardless of rootstock.
Orlando Campolo, Eleonora Chiera, Antonino Malacrinò, Francesca Laudani, Anna Fontana, Giuliana R. Albanese, Vincenzo Palmeri   +6 more
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The Variability of Aphis Gossypii.

Annals of the Entomological Society of America, 1927
Because of confusion in economic literature and in collections, concerning the identity of Aphis gossypii , it is desirable to know the range of variation in this species, especially with reference to such external structures as may be considered of value as “key characters.”
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Characterization of microsatellite loci in the aphid species Aphis gossypii Glover

Molecular Ecology, 1999
International ...
Vanlerberghe Masutti, Flavie, Chavigny, Pascal, Fuller, S.J.   +2 more
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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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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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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
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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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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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