The reliance of the Australian cotton industry on insecticides for the control of insect pests represents a major economic and environmental concern. In the face of pesticide resistance in H.

One such form is biological control, which relies on the use of natural pathogens and parasites to control the pest species.

The aim of the present work is to assess the usefulness of pteridines in determining the age of adults of P. scutigera.

AZADIRACHTIN is a terpinoid chemical !ound in Meliaceous trees (e.q. White Cedar) but especially concentrated in the seeds of the Neem tree (Azadirachta indica).