Farmers in Australia apply between 80 and 200 kg N ba-1 to cotton, but only part of this nitrogen is taken up and used by the crop, and the remainder is lost :from the plantsoil system.

I have been asked to address three major points: I . Why is risk management important? 2. Does a grower nee-d to know all the details of a market before he can become involved with risk management? 3.

This paper looks at some of the differences between raingrown and irrigated cotton in Central Queensland, in particular: differences in basic inputs and differences between major problem areas.

Verticillium wilt of cotton is caused by a fungus (Verticillium dahliae) that infects the host plant via the roots and colonises the vascular system.

At the last ACGRA conference in 1990, it was reported that the Heliothis ID project had been running for approximately six months and species specific antibodies had not yet been obtained.

Raingrown cotton in Northwest NSW and Southwest Queensland is not grown on metre beds, rarely has aerial applications, relies to a large extent on stored water, uses little or no fertiliser and large areas are harvest

The cornerstone of most pest management programs world-wide is the "Economic Threshold" concept which is based on the principle of controlling a pest only if it is economically prudent to do so i.e.

At the Cotton Conference in 1990. I presented a paper which outlined the broad health and safety issues for the cotton industry in Australia. Health effects for the workforce included traumatic injury.

Previous research at Narrabri Agricultural Research Station and elsewhere has shown that mite populations increase more slowly on okra leaf cotton genotypes than on normal leaf genotypes (Bailey et al., 1978; Thomson,

In surface irrigation systems we use beds rather than growing thee crop on the flat for several reasons.

There are basically three ways of preventing cotton farm runoff from contaminating the riverine.

Cottongrowers in central Queensland (CQ) enjoy no advantage over southern counterparts in the range of insect pests that attack their crop.

Nitrogen management has to be good for best yields, but factors such as soil condition, irrigation and pest management may have greater effects on cotton yield than N rate.

The Environmental Audit of the Australian cotton industry was a bold initiative at a period in time when the industry was under severe pressure from well organised environmental lobby groups.

Nowadays, most of us are aware that natural enemies (parasites and predators) sometimes play an important role in the control of pests attacking our crops.

In the majority of cases, growers do not have a problem with excessive vegetative growth in their cotton crops. It is more likely that a field is not growing to potential.

As a first step in developing a community education program about IPM it was decided to assess the knowledge and perceptions of members of the rural community to the pest management practices.

Any agent which reduces damage caused by heliothis is a valuable asset.