This can cover an enormous area because not only does technology intrude into every aspect of growing a crop, by the view of it can change drastically with each different farmer.

AZADIRACHTIN is a terpinoid chemical !ound in Meliaceous trees (e.q. White Cedar) but especially concentrated in the seeds of the Neem tree (Azadirachta indica).

I have to tell you now that I will not be presenting such a perspective.

Genetic engineering involves the agronomic improvement of crop plants through the introduction of new genetic information (genes) originating from other organisms.

In recent years the use of agrochemicals, often referred to as pesticides, has become an increasingly controversial topic.

Your committee has asked me particularly to focus on the technological needs of the industry. As a background to this it's worth talking briefly about the research councils and their evolution.

Although resistance to insecticides was a well-documented phenomenon, pest control operators have merely switched from less effective insecticides to newer more potent compounds and thereby kept ahead of the resistanc

Most herbicides are complex molecules and their decomposition often requires several different chemical conversions, each mediated by a variety of organisms.

One of the important characteristics elevating Heliothis spp. to major pest status is the ability to enter facultative diapause.

The fungus Colletotrichum orbiculare(Berk. et Mont.) v. Arx (Walker and Nikandrow, unpublished data) was found causing anthracnose on X.

My objective has been to construct life tables describing Heliothis egg and larval survival on the major crops of the Darling Downs over several seasons.

As the first presentation on this topic I would like to very briefly outline the major advantages of producing an early crop.

Biological control represents one alternative to insecticides. The Cotton Research Council (CRC) has funded a project to study native egg parasites of Heliothis.

It was once a commonly held belief in central Queensland that, because the potential cotton growing season was a long one, earliness was not an important management consideration.

The study reported here concentrated. On these sap-suokinq bugs, which were reputed to damage seedling and early-squaring cotton

To the question "Can nutrition affect earliness?" the answer must be a definite Wes". Further, it will be just as important a factor as irrigation or pest management.

BACILLUS THURINGIENSIS use as an insecticide for 25 years despite formidable competition from conventional insecticides is largely due to its safety and compatibility.

From before the first seed is planted, everything that 1s done, 1.e. selection of seed variety, to all cultural practices and 1nsect control must have one aim and that is earliness.

One such form is biological control, which relies on the use of natural pathogens and parasites to control the pest species.