| Titles |
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English :
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Metabolic resistance mechanisms of different pesticides in the two- spotted spider mite Tetranychus urticae Koch (Tetranychidae: Acari)
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Arabic :
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آليات المقاومة بالايض للحلم العنكبوتى ذو البقعتين Tetranychus urticae Koch
(Acari: Tetranychidae) لمبيدات مختلفة
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| Abstract |
An investigation was performed to determine the possible role of detoxification metabolism in resistant strains of Tetranychus urticae Koch. Adult females were subjected to selection pressure through 40 generations by LC50's and LC90's of Vertimec (Avermectines), Cypermethrtin (Pyrethroides), Methomyl (Carbamates), and Malathion (O.P), were (41.308,42.021,44.881 and 49.265 folds) and (49.815, 55.411, 63.972, and 90.00 folds), respectively, whereas RRS slopes ranged from 0.884 to 1.395 folds. Comparative assay with esterases (EST) and mixed function oxidases (MFO) showed that LC50's of Mal- Resistant strains had higher EST. activity (4.71) with lower MFO (3.80), while, LC50's of Vert- Resistance strain had lower EST. activity (2.70) with higher MFO activity (4.26). Synergist experiments showed low synergism by s,s,s tributylphosphorotrithioate (DEF) of EST activity ranged from 4.81 to 2.99 folds, while synergism by Piperonly Butoxide (PBO) of MFO activity ranged from 4.27 folds and LC50's pesticides resistant strains.
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| Publication year |
2009
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| Pages |
45-53
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| serial title |
Acarines
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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.
Tetranychidae.
Tetranychus urticae.
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| Publication Type |
Journal
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