To investigate soil response to compaction, a range of cracking clay soils (Vertisols) were collected from major cotton growing areas in Queensland and subjected to a uni-axial-compression.

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

The presence of right-angle bending in cotton tap roots clearly shows the restrictions which degradation of soil structure imposes on cotton growth.

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.

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

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.

To understand, and predict, Heliothis dynamics on cotton, along with changes in resistance levels, we must understand their dynamics on other hosts and the patterns of movement from these to cotton.

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

SIRATAC users have the option early in the season of using standard thresholds or dynamic thresholds which vary between the standard level and an upper limit.

The successful application of Agrochemicals involves an understanding of the:- target, product, equipment, droplet behaviour, and the environment.

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

The Siratac system when it was originally conceived had no database system included in the workings of the system.

Chemical Farming implies the use of chemicals for the control of insects, weeds and diseases.

You are all aware that currently there are three varieties available commercially: Siokra 1-2, Sicala 3-1 and DP90 (Deltapine - Acala) .

This can cover an enormous area because not only does technology intrude into every aspect of growing a crop, by the view of it can change drastically with each different farmer.

Seedling diseases include seed rots, pre and post emergent damping 9ff and root pruning. Numerous fungi can be responsible although Rhizoctonia sp., Pythiwn spp. and Fusarium spp. are the most important.

I have to tell you now that I will not be presenting such a perspective.

This Overview has been compiled after talking with a limited number of growers from most districts, and as could be expected there were some opposite opinions expressed.

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

Dr Daly Travel Australian Cotton Conference