Pyrethroid resistance in the pod borer, Helicoverpa armigera

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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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)
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
Acknowledgement: UNSPECIFIED
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