2024, Vol. 5, Issue 2, Part D
Toxicological, biochemical, and histological impacts of bio-insecticides on Agrotis ipsilon (Hufn.) (Lepidoptera: Noctuidae) along with their field effectiveness compared to chemical insecticides
Author(s): Wessam Z Aziz, Nabil M Ghanim, Hanaa M Ragheb and Mohamed E Mostafa
Abstract: The present work aimed to evaluate the larvicidal, toxicological, biochemical and histological effects of bio-insecticides against the black cutworm, Agrotis ipsilon (Hufn.) (Lepidoptera: Noctuidae) larvae in comparison chemical insecticides under laboratory conditions, in addition to evaluating their effects as larval population reduction under field conditions. Based on the toxicity index, cypermethrin was the most potent against the 2nd instar larvae and the rest tested insecticides arranged descendingly to be protecto, acetamiprid, Biosiana, metaflumizone, and azadirachtin, while, on the 4th instar larvae, protecto was superior, followed by Biosiana, cypermethrin, metaflumizone, acetamiprid and azadirachtin, respectively. The effects of bio-insecticides (Azadirchtin, Metaflumizone, Biosiana and Protecto) on the activities of some key enzymes of A. ipsilon 4th instar larvae varied between inhibition and activation according to the estimated insecticide. The abnormal structure of the 4th instar larvae midgut caused by the tested insecticides descendingly arranged the effects of insecticides as protecto, metaflumizone, Biosiana, cypermethrin, acetamiprid and azadirachtin, respectively. Under field conditions, cypermethrin recorded the highest reduction percentages of A. ipsilon population, followed by protecto, acetamiprid, metaflumizone, Biosiana and azadirachtin, respectively.
DOI: 10.33545/27080013.2024.v5.i2d.252
Pages: 296-303 | Views: 342 | Downloads: 79
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How to cite this article:
Wessam Z Aziz, Nabil M Ghanim, Hanaa M Ragheb, Mohamed E Mostafa. Toxicological, biochemical, and histological impacts of bio-insecticides on Agrotis ipsilon (Hufn.) (Lepidoptera: Noctuidae) along with their field effectiveness compared to chemical insecticides. Acta Entomol Zool 2024;5(2):296-303. DOI: 10.33545/27080013.2024.v5.i2d.252
