The purpose of our four-year study on the Darling Downs was 1) to investigate the population dynamics of heliothis and to quantify the significance of the major controlling influences (parasites, predators, pathogens,

A disease can only occur when a virulent pathogen contacts a susceptible host under favourable environmental conditions. The incidence and severity of a disease reflects the occurence of these three factors.

The Bureau of Rural Resources has estimated the area in central Queensland potentially suitable for raingrown cotton production at 60-80,000 ha.

Mycorrhizas are symbiotic associations between the roots of plants and fungi. They come into existence when the plant's root system becomes infected with an appropriate fungus.

Small parasitic wasps, scientifically known as Trichogramma, are used as biological control agents of moth pests in overseas countries, thereby reducing the need to use insecticides.

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.

The Australian Field Crops Resistance Management Strategy has been in place now for 7 seasons.

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 .

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.

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.

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

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.

As most cotton is exported the cotton industry has a high exposure to exchange rate fluctuations.

During the 1988/89 cotton season trials were conducted to evaluate the potential of synthetic pheromones to control the pink -spotted boll worm, Pectinophora scutigera, by mating disruption

For a long time, pest control In the cotton industry has depended on a narrow range of broad-spectrum insecticides.

Many cotton growers are asking Why can't Australian cotton mills spin more cotton?" Many hundreds of thousands of bales of cotton are imported into Australia as finished yarns and fabrics - why can't th

It is already well established that sprays containing the ultra-safe pesticide azadirachtin are very effective in reducing egg-laying Heliothis spp. in cotton in the field

The SOILpak project so far has concentrated on the grey and brown cracking clay soils used for cotton production.