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- Title
Lethal and Sublethal Effects of Azadirachtin indica Seed Extract on the Development of Spotted Bollworm Earias vittella (Fab.).
- Authors
Gulzar, Asim; Ali, Muhammad Majad; Tariq, Muhammad; Bodlah, Imran; Tariq, Kaleem; Ali, Asad
- Abstract
Spotted bollworm, Earias vittella (Fab), is an agricultural cotton pest. In Pakistan, Earias vittella (Fab) has developed resistance to various groups of insecticides. In the present study, the effect of an extract of Azadirachtin indica in different solvents on second instar larvae of E. vittella was evaluated in laboratory studies for toxicity as well as lethal and sublethal effect. The results indicated that methanol-based extract was the most effective to control E. vittella, followed by ethanol extract. The lethal and sublethal concentration of methanol-based extract of A. indica increased larval and pupal duration as compared to control. The percent pupation, adult emergence, and pupal weight were decreased in treated populations as compared to control populations. The esterase activities and total protein content of the treated E. vittella were also reduced as compared to controls. The results of this study could be useful in an integrated pest management program for the management of E. vittella.
- Subjects
COTTON diseases &; pests; BIOLOGICAL pest control; INSECTICIDES; TOXICOLOGY of insecticides; SOLVENTS
- Publication
Gesunde Pflanzen, 2019, Vol 71, Issue 1, p19
- ISSN
0367-4223
- Publication type
Article
- DOI
10.1007/s10343-018-0437-9