With early findings of wheat infected with cereal rusts,
graingrowers who fear their crops are harbouring disease can
quickly test for confirmation and advice on the correct
management strategy through a comprehensive Western Australian
diagnostic network.
The network first raised the alarm when ascochyta blight
infiltrated Western Australia’s chickpea crop in 1999 and it
later discovered a new strain of stem rust which had overcome
resistance in the wheat variety Camm.
"Western Australia growers have monitored crops more closely
in recent years due to the influence of TOPCROP groups and
agronomic advisors, so this service was established to support
them scientifically," said the
Grains Research and Development Corporation (GRDC) supported
project leader Dominie Wright of the Department of Agriculture.
The service was quickly embraced by growers after its 1998
introduction, with 876 samples tested in 1999.
Although favourable conditions in 2000 and 2001 reduced the
disease threat and limited the number of samples tested, the
system has continued to be refined.
"The protocols we use in our diagnosis have been updated and
we’re implementing a QA system to ensure everything is done
right," Ms Wright explained.
"With predictions of rust outbreaks this season, we’re
preparing for a busy year."
The GRDC Western Regional Panel grower member responsible for
Crop Protection, Andrew Lee of Dumbleyung, praised the project,
saying it was important for growers across the state to have
access to accurate and timely diagnostic support.
"The immediate and correct identification of disease presence
helps growers quickly manage outbreaks and minimise potential
financial damage," he said.
"For example, correctly differentiating between leaf and stem
rust enables a grower to implement an appropriate control
strategy."
Western Australian growers who wish to access the GRDC
supported diagnostic system should contact AGWEST Plant
Laboratories, Tel 9368 3721.