The role of detoxification enzymes in insecticide resistance in the field populations of the peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae)

Toughan, Mai M.; Sallam, A.A.; Abd El-Latif, A.O.

doi:10.21608/svuijas.2023.200143.1277

	The role of detoxification enzymes in insecticide resistance in the field populations of the peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae)
SVU-International Journal of Agricultural Sciences
Article 8, Volume 5, Issue 1, January 2023, Page 94-108 PDF (512.23 K)
Document Type: Original Article
DOI: 10.21608/svuijas.2023.200143.1277
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Authors
Mai M. Toughan ¹; A.A. Sallam¹; A.O. Abd El-Latif²
¹Department of Plant protection, Faculty of Agriculture, Sohag University, 82524 Sohag, Egypt.
²Department of Plant Protection, Faculty of Agriculture, Sohag University, 82524 Sohag, Egypt.
Abstract
Using biochemical and molecular assays, we identified distinct patterns of detoxification enzyme activity in insecticide resistance in field populations of Bactrocera zonata (Saunders) which suggested that certain enzymes are involved in developing resistance. Field populations of B. zonata showed increased activity of detoxifying enzymes compared with susceptible populations. Correlation analysis showed that enzyme activity was positively correlated with resistance to malathion, lambda-cyhalothrin, imidacloprid and spinosyn. However, an inverse correlation between enzyme activity and methomyl resistance has been found. The results showed that the synergists of PBO and Sesamex had good inhibitory activity on detoxifying enzymes, with the highest inhibitory potency on monooxygenases. These results showed that pesticides should be used judiciously and in prescribed ways to integrate pesticides into IPM programs of B. zonata.
Keywords
B. zonata; Biochemical; molecular assays; insecticides; Fruit fly; resistance


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