Implementation of insecticide resistance management strategies on Bt cotton.

摘要

By farmers participatory approach, the Insecticide Resistance Management (IRM) strategies for managing cotton pest complex revealed that sucking and bollworm complex were low in IRM fields compared to non IRM fields. The strategic positioning of insecticides coupled with ecofriendly technologies were lead to abundance of natural enemies in cotton eco system in IRM fields, while these were low in non IRM fields due to insecticidal sprays. Farmers by adopting IRM strategies had realized higher net returns by saving in plant protection cost due to less number of insecticidal sprays and increased seed cotton yield.