Retained hills are now a well-established management strategy in the Australian Cotton Industry.

During the 1988/89 cotton season trials were conducted to evaluate the potential of synthetic pheromones to control the pink -spotted boll worm, Pectinophora scutigera, by mating disruption

This paper address why there are differences in the soils of the lower Namoi Valley.

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

Four cotton breeding programs have been operating in Australia, three i n New South Wales and one in Queensland .