Of the five species of Heliothis in Australia, only two, Heliothis armigera and H. punctigera are major economic pests. They are clearly the major pests of cotton in all production areas.

Heliothis spp. have two main attributes which give rise to their pest status and make them difficult to manage (see Fitt this volume).

The development and release of SIOKRA, the new okra-leaf variety, has created considerable interest with respect to pest management.

Early crop protection is a controversial subject in modern pest management. Grower magazines in Australia and the U.S. carry articles expressing firm opinions both for and against.

The scouting of cotton for eggs and larvae of Heliothis spp is a labour intensive and therefore expensive undertaking.

Each furrow irrigation waterlogs most of the root zone of cotton in cracking clay soils. This deprives the roots of oxygen, they take up less water and nutrients. and this reduces growth and yield.

Three species of pest mites are found in cotton in NSW and Qld: the two spotted mite, Tetranychus urticae, the bean mite, T. ludenli, and the strawberry mite, T. lambi. Of these T.

Answers to the questions : How do I find and use probes for scheduling irrigations? Are they used as the only scheduling tool? How do we use our water most effectively?

The cotton bollworm, Heliothis armigera Hubner, is the most serious pest of cotton in Thailand.

This project was prompted by disappointingly low cotton yields at Emerald and other Central Queensland centres.

Bacterial blight of cotton is a major disease in most cotton growing countries of the world.

Firstly, it is important to define "Minimum Tillage" as it applies to our operation. Our objective in achieving such a system is more correctly described as a "Permanent Bed'' system i.e.

A review of overseas literature shows that several approaches have been recommended for the control of bacterial blight of cotton .

Throughout this article I will be encouraging less tillage. There are three reasons for this. Firstly, tillage is costly. Secondly, soil structure often is sufficiently good for farming without tillage.

On many occasions, we saw some parts of our farm, produce this 3 bale yield, but not over a whole field. One corner ,or one side, or a top or bottom end, but not all over.

As a result of a major fall in world cotton prices, the Namoi Cotton Co-operative has been actively looking at ways of reducing costs on cotton farms.

The need to develop marketing strategies for the Australian cotton crop appears to be imperative. If we are to continue to develop nev.1 cotton varieties.

Techniques to Improve Profitability of Growing Cotton

Cotton Breeding for Queensland

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