The Leaf Chamber Fluorometer is an exciting new addition to the physiological instrumentation available to the scientists at ACRI.

During their visit, the US Scientists interacted and shared experiences and

techniques with Dr David Nehl and Dr Om Jhorar of NSW Agriculture, Dr Stephen

Hibiscus trionum L. (bladder ketmia) is one of the most common weeds throughout the Australian cotton industry. There are two varieties of the weed, the narrow leaf introduced variety Hibiscus trionum var.

The scientific exchange had the following objectives: *Examine farming systems relevant to tropical Australia, e.g. peanut / cotton on light soils, drip / overhead head irrigation, conservation tillage systems.

In season 2001-02, the Central Highlands area

of experienced Australia's

first major outbreak of Silverleaf Whiteny

(Bentsi" tobcci biotype B) in a cotton

Cotton production in Australia is vitally dependent upon the safe and efficient application of

The commonly used Micronaire value for cotton is related to both fibre fineness and maturity. There is a need for a new measurement technique to separate these.

Fusarium wilt is caused by pathogenic fungi in the genus Fusarium, which infect the roots of susceptible plants and are able to spread throughout the vascular system, stimulating the production of gums and gels that b

11th ACGRA Cotton Conference Programme, media coverage and survey results.

More than 2000 cotton industry personnel (including growers, spray operators, consultants

and spray contractors) participated in spray application workshops conducted throughout all

The availability of accurate and continuous weather and climate data is essential for strategic research, operation of decision support systems (eg.

Project objectives, The four objectives of this project were; * To characterise the soil types of the lower Lachlan River Valley used for cotton, production.

A series of trials for evaluating new cotton strains and cultivars in Queensland was conducted in collaboration with the CSIRO cotton breeding programs based at Narrabri.

The commonly used Micronaire value for cotton is related to both fibre fineness and maturity. There is a need for a new measurement technique to separate these.

This project was based on the results of extensive research on fruits, ornamentals, vegetables and cotton (in NSW) in which the effectiveness of petroleum-derived spray oils (PDSOs) on insect and mite pests has been u

Cotton fibre maturity is an extremely important property to spinners and fabric manufacturers because it determines how well fibres will process both from a chemical and a physical perspective.

Additional research work has been undertaken to answer a range of questions raised concerning various aspects of WEEDpak.

Included are:

For more than a century, petroleum-derived spray oils have been used to kill

susceptible pests, principalIy scales and wites through anoxia (suffocation). This

Unispray have developed a new centrifugal energy nozzle, the "Unimiser", for the aerial application of

pesticides. The new nozzle is designed to substantially resulting from the

This project has produced data which confirmed past findings of the robustness of cotton to compensate for levels of insect damage exceeding those of current industry thresholds for Helicoverpa and mirids.