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.

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

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.

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.

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.

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

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.

The performance of CSIRO varieties and new lines are evaluated each year in a series of regional trials, known as the Australian Cotton Cultivar Trial (ACCT).

Traditional plant breeding techniques have had a major impact on the Australian cotton industry through the production of the widely successful CSIRO varieties Siokra and Sicala.

Documentation of crop yields and varieties in the Toowoomba Royal Agricultural Show Irrigated Crops Competition since 1972 demonstrates the great advances achieved by cotton breeders as new varieties have been introdu

As the Cotton Breeder for Deltapine Australia this presentation will concentrate on the breeding program and aim to cover the following *The performance of Deltapine Varieties in 1991 /92 *The specific factors Deltapi

The genetic material (DNA) of living organisms is structurally the same whether it is found in humans, plants, fungi or bacteria.

Question: When is a cotton plant not a cotton plant? Answer: All the time. Healthy cotton plants are always part of a mycorrhiza.

In 1990, a C.R. & D.C.