To measure the effect of biotic factors (host crop, body size) and abiotic factors (temperature, humidity) on reproductive development, fecundity and longevity of adult Heliothis punctigera and H.

OBJECTIVES (i) To evaluate the reliability of current SIR.A TAC sampling procedures and conversion equations relating proportion infestation to mean number of insects per plant.

The main aim of this project was to develop a low-cost multispectral airborne video imaging system (referred to as MAVIS) for detecting and monitoring spatial and temporal variations in the vigour of irrigated cotton

Aims: (i) to quantify the contribution of alternative host crops to the dynamics of Heliothis on cotton using an elemental analysis technique developed in a previous project.

This project was concerned with the transfer of cotton fibre testing from the Division of Wool Research, Geelong Victoria to the Cotton Research Unit at Narrabri Agricultural Research Station (NARS).

To quantify movement of Heliothis adults Into cotton crops from local and distant source regions.

A 20 saw gin was bought for $13,000 from the USA. It was installed and fitted with a motor in time to be used in the 1991 harvest It operated satisfactorily throughout the 1991 season.

This project involved the purchase of equipment to measure the surface water inputs and outputs of two commercial scale cotton fields.

The first Queensland soil management training workshop was held in July 1991 at Dalby. Funding came from the Cotton Research and Development Corporation and the National Soil Conservation Program.

During August 1990, in company with Dr Norm Thomson, Mr Reid visited a number of research institution and companies form California to Mississippi.

This project was initiated under the name "CS66L - SIRATAC Plus configuration and testing". However, the Siratac Plus project proved a failure and all development was abandoned in 1990.

A survey form asking the cost of weed control, the major weed problems and the herbicides used was sent to fifty two cotton growers from the seven major cotton areas of New South Wales.

The initial phase of .the project was devoted to the selection and testing of analytical techniques for assessing total nitrogen and leaching losses, and gaseous losses of nitrogen by ammonia volatilization and denitr

I was invited to speak at the conference to give a paper at one of the sessions.

The objective of this project was to look at economic optimisation within the SIRATAC framework.

This visit was made to study recent research. The topics of most interest were crop nutrition, mycorrhizae, growth regulators, row spacing and breeding.

The main aim of this trip was to accept an invitation from the British Society of Chemical Industry to deliver a paper at their 'Resistance 91' international symposium.

SUMMARY We have generated an antibody which is absolutely specific for H. armigera over H. punctigera. Specificity has been demonstrated in a number of ways. For example, the antigenic protein from H.

The Australian cotton industry has a long history of independent environmental assessments, demonstrating its commitment to monitoring and improving the industry’s environmental performance.

An Orthman Mk II tracking unit was purchased in October 1991 prior to cotton sowing. The unit was successful in planting CSIRO's Leitch's block using a Kinze planter.