The aim of this project was to develop a mass screening technique for the selection of cotton plant antibiosis resistance (AR) to H. armigera.

This paper summarises a large number of strength and compression tests in a range of cotton soils.

The objective of the experiments reported in this paper is to determine the fate of fertilizer nitrogen applied to the grey clays in the Namoi Valley.

The aim of the present work was to assess if the fatty acid profiles of moths are useful in establishing different larval dietary histories

WATERSCHED has been developed by research and extension agronomists from the Queensland Department of Primary Industries and uses a water balance approach to schedule irrigations.

Waterlogging can affect both the availability of micronutrients in the soil and the plant's ability to absorb nutrients from the soil.

With current Australian cotton production around 1.25 million bales this equates to C.R.C. research expenditure of A$3.2 to 3.5 million per year - allowing for reserves, administration, etc. These C.R.C.

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.

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

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

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

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.

This study determined the genetic basis of pyrethroid resistance in Heliothis annigera and characterised those factors that lead to cyclical fluctuations in the frequency of resistance in field populations.

The objective for this project was to field test the basic pest management version of SIRA TAC Plus and to educate SIRATAC Ltd field staff in the use of SIRATAC Plus.

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

Australian Insecticide resistance mangement Strategy

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