| Titles |
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English :
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Demographic- toxicological studies related with resistance of different pesticides on Tetranychus urticae Koch (Acari: Tetranychidae)
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Arabic :
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دراسات سميه ديموجرافيه متعلقة بالمقاومة لمبيدات مختلفة على العنكبوت الاحمر
Tetranychus urticae Koch (Acari: Tetranychidae)
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| Abstract |
Demographic bioassays were carried out in the laboratory to asses the demographic responses with gained resistance of Tetranychus urticae Koch to Vertimec, Cypermethtin, Methomyl and Malathion at two sublethal concentration (LC50 and LC25) through40 generations. Life table data were used in each sublthal treatment to parents, F2, F6, F10, F20, F30 and F40. Life cycle durations ranged from 30.73 to 16.05 days at LC50 and from 23.84 to 11.87 days at LC 25 of tested pesticides, respectively. Life span durations ranged from 21.71% to -28.12% at LC50 and from 17.84% to -30.96% at LC25 of tested pesticides, comparing with the check. Intrinsic rate of increase (Rm) and two population growth rates (fecundity λ and vitality λ) for T.urticae (hereafter given in units λ/day) were estimated and discussed.
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| Publication year |
2009
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
الجيزة
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| serial title |
المجلة المصرية للبحوث الزراعية
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| ISSN |
1110-6336
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| Author(s) from ARC |
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| External authors (outside ARC) |
سلوى السعيد نجم
قسم المبيدات- كليه الزراعه- جامعه المنصورة
عادل عبد المنعم صالح
قسم المبيدات- كليه الزراعه- جامعه المنصورة
على على عبد الهادى
قسم المبيدات- كليه الزراعه- جامعه المنصورة
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| Agris Categories |
Pests of plants
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AGROVOC
TERMS |
Acarina.
Kochia.
Pesticides.
Tetranychidae.
Tetranychus urticae.
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| Publication Type |
Journal
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