Armes, N J and Jadhav, D R and King, A B S (1992) Pyrethroid resistance in the pod borer, Helicoverpa armigera. In: Proceeding Brighton Crop Protection Conference — Pests and Diseases, 24-28 November 1992, Bracknel, UK.
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Abstract
changes in the LD 50 of Helicoverpa armigera to cypermethrin at the International Crops Research Institute for the semi Arid Tropics (ICRISAT) and in the coastal cotton-growing region of Andhra pradesh state during the period 1986-92 are summarised and discussed. A provisional discriminating dose of lug cypermethrin was evaluated at ICRISAT and changes in resistance to cypermethrin monitored throughout 1991/92. Resistance was related to seasonal changes in insecticide use; it was lowest in August and increased with progression of the season. Prospects for insecticide resistance management of H. armigera in Andhra Pradesh are briefly discussed.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Others > Fertilizer Applications Others > Entomology |
| Depositing User: | Mr Sanat Kumar Behera |
| Date Deposited: | 15 Dec 2011 05:18 |
| Last Modified: | 31 Dec 2011 05:46 |
| URI: | http://oar.icrisat.org/id/eprint/4962 |
| Acknowledgement: | UNSPECIFIED |
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