The frequency of resistance to synthetic pyrethroids in Heliothis armigera has been monitored in the Namoi Valley since the introduction of the insecticide resistance management strategy in 1983.

Not available

Travel Daly Narrabri research conference

The main aim of this trip was to report to the international scientific community on the progress of the Insecticide Resistance Management Strategy that has been implemented in Australia to contain pyrethroid and endo

The overall aim of the soils research program based at Trangie has been to develop management strategies that maximise the profitability of irrigated cropping by: (i) correcting yield limiting soil physical problems;

Heliothis armigera and H. punctigera are serious pests of cotton in Australia. Control of Heliothis is currently dependent on insecticides.

Objectives o Determine optimum nitrogen rates for cotton under a range of conditions. o Determine the best time to apply this nitrogen.

The aims of the project are to provide a basis for sound irrigation management of cotton through studies of: � (i) Crop response to a range of irrigation management options in terms of crop irrigation efficiency (yiel

Changes in Helicoverpa populations in non cropping areas

Large scale trials of SIRA TAC comparing standard and dynamic thresholds were done for three years on commercial farms along the length of the Namoi valley.

Three methods of determining levels of resistance in H.armigera were evaluated. These included: (i) a standard glass vial test (ii) a tropical application (iii) a leaf disc test

The objective for this project was to erect and operate a fibreglass greenhouse at Narrabri.

The objective of this project was to modify the weather station at our Breeza Australian Cotton Cultivar site to enable the use of the telephone system and the SIRATAC computer to collect the data.

Advanced breeding selections initially selected at Biloela outyielded CSIRO selections initially selected at Narrabri. In contrast, the Biloela selections were low yielders when tested in New South Wales (NSW).

Project aims: (i) to investigate the spatial and temporal patterns of Heliothis adult and larval abundance, mortality and host use by each species and their dispersal from other crops into cotton.

Installation of a Halon gas fire suppression facility has been completed at a total cost of $12,970* including the linking of the warning system to the building's fire warning system.

To study the response of cotton to varying nitrogen rates and times and , methods of application unde r different irrigation strategies . , To demonstrate. to cotton grower under commercial conditions.

The application of the chemical technique developed in DAQ27L in determining the age of field collected adults of Pectinophora scutigera (pinkspotted bollworm).

Heliothis armigera and H. punctigera are serious pests of cotton in Australia. Control of Heliothis is currently dependent on insecticides.

No report available