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

In response to the development of resistance to pyrethroids by Heliothis armigera in 1983, an Insecticide management strategy was devised.in an attempt to prolong the field effectiveness of this and indeed, the other

The term 'genetics' encompasses a group of disciplines which study aspects of evolution. the first of these, molecular genetics, examines DNA, the raw material of evolution, and its organisation into genes.

A contribution was made to the last ACGRA conference on "The duration.of insecticidal activity against Heliothis larvae on cotton".

To optimize catches of Heliothis punctigera and H. armigera pheromone blends, dispenser and trap design have been evaluated and modified over a.7 year period.

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

The high quality cotton Namcala and its predecessor Hopicala have traditionally been grown on small percentages of the Australian cotton acreage (Mainly in NSW) as an alternative to the high yielding varieties such as