Sydney, Australia
August 21, 2008
University of Sydney
Plant
Breeding Institute (PBI)
Cereal Rust Laboratory
Cereal Rust Report Season 2008
Volume 6, Issue 4, 21 August 2008
Colin Wellings
The University of Sydney, Plant Breeding Institute
(on secondment from NSW Department of Primary Industries)
Stripe rust situation statement,
August 2008
Stripe rust continues to cause
concern for growers across a wide area of eastern Australia in
the current season.
The early occurrence of the disease, as noted in recent Cereal
Rust Reports, was initiated by susceptible early
sown grazing cereals and exacerbated by mild temperatures and
good moisture status in early winter. Recent cold weather in
late winter has delayed epidemic progress.
These unusual epidemic developments in 2008 has caused many
growers and advisors to consider fungicide
strategies at crop growth stages that have not been previously
encountered. The decision making process has
been complicated by variation in pathotype distribution,
uncertainty regarding expected variety response and some reports
of anticipated shortage in fungicide availability.
Full rust report:
http://www.agric.usyd.edu.au:8888/pbi/cereal_rust_reports_crr.htm
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