We have conducted a series of experiments at Trangie, Warren, Narrabri and Moree to examine the use of shallow leading tines in conjunction with rippers. Ripper depths of 300, 450 and 600 mm have been investigated.

In the 1991/92 season we started observations in both sprayed and unsprayed plots of different cotton varieties to record the numbers of fruit lost during the season and to identify the causes of shedding.

The companion project to SOILpak, "Soil management training for advisers to cotton growers" has made a good start in familiarising consultants and agronomists with structural recognition.

HOTEL CONRAD AND JUPITERS CASINO, BROADBEACH, GOLD COAST, QUEENSLAND ORGANISED BY THE AUSTRALIAN COTTON GROWERS RESEARCH ASSOCIATION INC. (ACGRA

The reliance of the Australian cotton industry on insecticides for the control of insect pests represents a major economic and environmental concern. In the face of pesticide resistance in H.

Cotton growers began to realise in the late 1970's that compaction of clay soils may have been a cause of declining yields. Research over the last 10 years has confirmed those suspicions.

This paper outlines the requirements to effectively operate a Controlled Traffic farming system, with emphasis on the need for some form of automatic steering assistance for farm machinery.

A change of direction for entomoLOGIC and some improvements to hydroLOGIC will provide growers and consultants in the 1992/93 season with effective, low cost decision support systems for irrigation and pest management

This project was established to find a simple, repeatable and reliable technique or series of techniques for consultants, extension personnel and managers to use to assess soil structural conditions in the field.

It has been 9 years now since the introduction of the Summer Crop Resistance Management Strategy in 1983/84 season.

Nitrogen management plays a key role in cotton production. It is the nutrient required in greatest quantity by the crop and it is the nutrient most often deficient.

Encouraged by a trial 1/2 acre result of 2.8 bales per acre from the 1990 cotton pick, Tandou has grown 70 acres in 1991 and 850 acres in 1992 installing one roller gin to process the 1991 crop and expanding the gin t

The suspected importance of pyrethroid metabolism in resistant H.armigera. made the investigation the biochemical basis of pyrethroid resistance in H. armigera imperative.

This article will refer to narrow row cotton only as that currently being grown in 75 cm rows (30").

The Cotton Research and Development corporation (CRDC) is funding a comprehensive 3-year project to discover the environmental fate of endosulfan sprayed on cotton for insect control.

Last season there were four (Siokra 1-4, Siokra L22, Sicala 33 and CS 189) CSIRO mainstream varieties being grown commercially in most districts.

During the 1990-91 and 1991-92 seasons planting date experiments were carried out at Narrabri Agricultural Research Station using a range of cotton varieties.

The insecticide, endosulfan, is still an effective weapon in the arsenal against Hellothis pest species. It fs used extensively in spring and summer as a cheap alternative to the synthetic pyrethroids.

The CSIRO breeding programs aim to produce varieties for all the different growing situations in Australia.

Outbreaks of native budworm, Helicoverpa punctigera, often arise after egg laying by emigrant moths from distant populations.