The residual action of nine insecticides commonly used in cotton were assessed on the survival of the native egg parasitoid Trichogramma funiculatum by exposing adult wasps to sprayed cotton leaves 1, 3, 5, 7, 1 O and

It has now been 11 years since the introduction of the Insecticide Resistance Management Strategy in the 1983/84 season.

During the 1970s and 1980s organophosphates (OPs), particularly monocrotophos (first tested 1969-70, registered 1972-73) and profenofos (first tested 1973-74, registered 1978-79), were the mainstay of mite control for

A great proportion of the Helicoverpa eggs laid onto cotton never hatch. They are either eaten by predators, dislodged from the plant by wind and rain, killed by climatic extremes, or are infertile.

During the past two seasons, cotton crops growing in Queensland have been surveyed for diseases. In March 1993 specimens of wilted cotton were collected from the Brookstead area of the Darling Downs.

Pix is now in common use to manage vegetative growth of cotton in Australia. I presented a paper at the 1992 ACGRA Conference detailing how to evaluate potential responses to Pix.

At the 1992 Australian Cotton Research Conference, we reported on field trials of a prototype Heliothis ID kit that were held during the 1991-92 growing season (Trowell et al., 1992).

HOW IT RELATES TO THE CONCEPT OF BEST PRACTICE, WHAT ARE THE FEATURES OF THE TOP PERFORMERS

Two years ago, the computer program entomoLOGIC 1 was first made widely available to cotton growers and consultants.

This is a new project that aims to develop diagnostic molecular probes for the most threatening insecticide resistance mechanisms in Australian H. armigera

Black root rot is caused by the fungus Thielaviopsis basicola (Berk. & Broome) Ferraris.

Compensation is the ability of the plant or crop to offset damage caused by pests or other factors such as hail. Compensation can act at the plant or crop levels.

Insecticide resistance continues to be a major problem for the cotton grower. It also is the focus of much of the research into the use and management of transgenic plants.

Agriculture can change the hydrologic balance of a landscape either through a change from native vegetation or the addition of water by irrigation or both.

Irrigation is used to negate the climatic irregularities of rainfall.

Resistance to some carbamate insecticides ( methomyl and carbaryl) in H. armigera is has been known since 1983. But at that time no resistance to thiodicarb (also a carbamate) was identified.

The good news is that nutgrass can be controlled. The bad news is that successful control is a long-term venture.

International trade in organic produce is now estimated to be worth around US$40billion per annum Of this, Australia produces in the vicinity of $40m each year2 and it is expected to become nearer to 10 percent of tot

I would like to focus on what I believe to be some of the most important issues now and in the future for the irrigation industry and, in this particular instance, the cotton industry - - whilst however keeping in min