Insecticides can poison insects in many ways. Insecticides r...:an interfere with metabolic processes , of energy production, cuticular growth and hormone production.

It rained a lot, and much cotton was picked on wet soil - but how much damage was, or will be, done to the soil? It is worth bearing in mind the description given in the handbook on Soil Management by Davies et al.

One of the important characteristics elevating Heliothis spp. to major pest status is the ability to enter facultative diapause.

It is now two years since we advi sed the previous conference on the progress of the trials so will take this opportunity for a further update.

At the time of the initiation of the H.armigera resistance management strategy, there was a need to demonstrate that any increase in resistance was limited to crops sprayed with pyrethroids.