With increasing problems of resistance to chemical pesticides amongst cotton pests, especially Heliothis, more attention is being given to biological control agents, including pathogens.

With the appearance of pvrethroid resistance in Heliothis armigera during the 1992/3 cropping season a strategy aimed at limiting the development of widespread resistance was rapidly implemented .H.

In recent years sap-sucking bugs have been associated with early season damage.to cotton crops in most of the production centres in New South Wales and Queensland.

The pink spotted bollworm (Pectinophora scutigera) has been an important.pest of cotton since 1924 in coastal, and sub-coastal Dawson-Callide regions of central Queensland.

Different cultivars are now becoming commercially available including Australian bred cultivars, and cotton growers now have a choice of which cultivar to plant.

At the 1982 Australian Cotton Growers' Research Conference the effects of land preparation at different soi1 water contents on soil structure and cotton growth was reported.

At Emerald, in the 1982/83 season, significant levels of field resistance in Heliothis armiger to synthetic pyrethroid insecticides were detected.

The cotton bollworm, Heliothis armiger is a very important cotton pest in Australia.

Soils that disperse tend to have poor drainage; excessive swelling closes soil pores, which also block up with dispersed clay, sand and silt.

I will first mention some of the features distinguishing "Australian Conditions".

This paper reports the initial results from testing different versions of the SIRATAC pest management system in the Namoi Valley for two seasons the experiments were designed to investigate the ability of the program

An evaluation of drip irrigation for cotton production

Over the last quarter of a century, as problems in relying completely on pesticides for control of insects have become apparent, there has been renewed interest in the possibility of breeding cottons less susceptible

One of the notable features of the SIRATAC pest management system is that its use followed extremely quickly on its initial formulation.

This subject is very relevant to the Australian Cotton Growing Industry as the most common complaint against our major seed variety, DPL 61, is that this growth has a lower breaking strength when it is produced in Aus

In agriculture we often hear reports of new wonder varieties that are about.to revolutionise agriculture, yet when these varieties are released, if indeed they are released, they seem to fall far short of the publicit

Namcala

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