The objective of this project was to provide enhancements to a partially established network of Apple Macintosh microcomputers and central VAX. microcomputers.

To provide adequate access to computing facilities for SIRATAC, Trichogramma and Heliothis Ecology/Modelling projects at the Toowoomba Laboratory

Australian Insecticide resistance mangement Strategy

The project DAN 33L involved studies of insecticide resistance in the major cotton pests Helicoverpa armigera and Helicovera. punctigera.

The use of pyrethroid insecticides on Helicoverpa armigera susceptible crops has been restricted to only 6 weeks each summer since 1983, when resistance to pyrethroids was diagnosed.

Summary of Key Results 1 Most promising techniques for use by advisory staff in the field are penetrometers and root morphological characteristics. 2 Soil smearing may not have significant effects on plant growth.

This project continued the major study of waterlogging on heavy clay soils after furrow irrigation or heavy rainfall.

Field work was conducted over the 1988/89 and 1989/90 cotton growing seasons in the Central Highlands of Queensland. Pheromone dispensers, specially formulated for P.

The aim of the project was to test the feasibility of using DNA probes to enumerate microorganisms involved in the degradation .of herbicides in soil.

This project was concerned with providing fibre quality data on research, especially breeding, samples. It was run by the Division of Textile Industry at Geelong, Victoria.

This project continued the major study of waterlogging on heavy clay soils after furrow irrigation or heavy rainfall.

The VAX cluster at Myall Vale is an important and essential facility for research and for the use of SIRA TAC by the industry.

The new truck for plant breeding use has been purchased.

A problem involving leaf death and fall before all bolls are adequately developed, has occurred in cotton growing areas for some years. Early reports of this date back to at least 1981.

A complex of pests attacks the Australian cotton crop, none more important than the cotton bollworm, Heliothis armigera. and insecticides are considered necessary for its control. H.

Establishing a satisfactory stand of cotton is a continuing problem for many growers. Even when the crop is not planted 'too early in terms of the 9: 00 soil temperature there is still a risk involved .

Last year I spent several months at Rothamsted Experimental Station in the U.K., as a Churchill Fellow, studying biochemical toxicology in H.

In my paper on the fundamentals of Classing I would like to outline both the traditional style classing and the modern high volume instrument classing.

The past season has been 11 abnormal 11 - how do we define a 11 normal" one? - but abnormal in the sense that significant shifts in trading patterns have occurred.