Research Article

**Seasonal occurrence of Sissoo Plant Infesting Eriophyid Mite, Aceria dalbergiae Channabasavanna (Acari:Eriophyidae) and Toxicity of Some Insecticides on it**

M. Aftab Hossain, M. Mahbubur Rahman Gazi, Nusrat Zahan and B.C. Das

Population density of Sissoo plant infesting eriophyid mite, A. dalbergiae and toxicity of some insecticides on it were studied from April to December 2000. The mite population differed significantly in different months (P<0.001) and different collection cites (P<0.001). Highest population (6.4519±0.19) was observed in the month of May and the lowest (1.8370±0.29) was in August. All test insecticides were toxic to adult mites. The calculated LD₅₀ values of lambda cyhalothrin, malathion, cypermethrin and chlorpyrifos were 0.0541, 0.1760, 0.3249 and 0.6166 μg/cm² respectively. Lambda cyhalothrin was found to be comparatively more toxic. The order of toxicity was lambda cyhalothrin> malathion > cypermethrin >chlorpyrifos

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M. Aftab Hossain, M. Mahbubur Rahman Gazi, Nusrat Zahan and B.C. Das, 2002. Seasonal occurrence of Sissoo Plant Infesting Eriophyid Mite, Aceria dalbergiae Channabasavanna (Acari:Eriophyidae) and Toxicity of Some Insecticides on it. Pakistan Journal of Biological Sciences, 5: 1246-1248.

DOI: 10.3923/pjbs.2002.1246.1248

URL: https://scialert.net/abstract/?doi=pjbs.2002.1246.1248

Pakistan Journal of Biological Sciences

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Authors

M. Aftab Hossain

M. Mahbubur Rahman Gazi

Nusrat Zahan

B.C. Das

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Research Article

**Seasonal occurrence of Sissoo Plant Infesting Eriophyid Mite, Aceria dalbergiae Channabasavanna (Acari:Eriophyidae) and Toxicity of Some Insecticides on it**

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