In recent times cotton growers have seen the need to adopt new land preparation practices. In the Macquarie Valley alone, only 35% of the 1987/88 cotton crop was prepared using conventional techniques.

Genetic engineering involves the agronomic improvement of crop plants through the introduction of new genetic information (genes) originating from other organisms.

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

Proper nutrition is one of the many factors necessary in achieving the high yield and quality standards we have set for our cotton crop.

One of the aims of this project is to assess the N fertiliser requirements of cotton under more enlightened tillage systems currently being adopted.