Abstract: Toxicological, biochemical, histological and ultrastructural studies of the impact of the entomopathogenic fungus, Trichoderma hamatum spore suspension on the adult cotton aphid (Aphis gossypii) were investigated in this study. The toxicological bioassay showed that the LC50 and LC90 against the adult aphid were 35.778 and 361.799 spores/ml of T. hamatum, respectively after 5 days post-treatment and the mortality percentages were 20.88; 26.39; 31.28 and 65.15% at 102; 103; 104 and 108spores/ml of T........
Keywords: Aphis gossypii, biocontrol, cotton aphid, histological, Trichoderma hamatum, ultrastructural studies.
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