Retained hills are now a well-established management strategy in the Australian Cotton Industry.

There are, few parasitoids which specifically attack the pupal stage. This is perhaps understandable since pupae are not readily accessible, being in the soil.

Obviously, avoiding trafficking wet soil is one means of avoiding soil structural damage. Another is to use a vehicle with lower ground pressure, by using dual tyres, wide tracks, etc.

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.

The importance of Heliothis has grown with the advent of resistance in H.armigera to various pesticides.

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

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 potential of leading tines to produce a finer tilth and allow operations at moisture contents \ Q higher than previously possible without producing smearing could possibly be exploited in implements for the renova

In July 1992 the 9th International Working Meeting on Soil Micromorphology was held in, Townsville, Queensland. It was sponsored by Sub-Commission B of the International, Society of Soil Science.

Funding from the CRDC and NSW Agriculture allowed two District Agronomists from major cotton producing areas to attend the International Pesticide Application Technology Residential Course at the Gatton campus of the

The overall aim is to house current and future staff for our expanded research projects in the next decade.

Objectives of Travel. (i) to attend the XIX International Congress of Entomology, Beijing, China.

The main aim of this trip was to accept the invitation of the Organiser of the Symposium on "The Realities of Insecticide Resistance Management" (Dr George Georghiou) to present a paper on "Nine Years o

To develop, validate and implement a regional model of Helicoverpa population dynamics which considers the abundance, movement, oviposition, development and mortality of H.armigera and H.punctigera on all major hosts

Disease Surveys. Commercial cotton (Gossypium hirsutum L.) fields in the Mcintyre, Gwydir, Namol and Macquarie valleys of New South Wales were inspected in November and March each season.

This is an on-going project of breeding cottons adapted to Australian growing conditions, diseases and pests and markets.

This project was a transitional one covering only one year to enable the incorporation of all our CRDC breeding projects under one submission (CSP 40C).

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