| LOCATIONS OF 2005 SPRING BEAN SITES | ||
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Downy mildew on spring sown beans is a sporadic disease, hence routine spray applications are not justified.
The aim of monitoring these crops was to identify when they were at risk from downy mildew,
to enable effective optimisation of fungicide treatments.
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Meteorological factors were monitored to provide an indication of the events which would identify
a heightened disease risk. Temperature and rainfall levels in the locality were used to determine risk and identify when spray applications should be made and thus
remove the need for emergency or prophylactic spray applications. Daily weather data were collected from a weather station local to the monitoring sites. These were compared to the long term average observed rainfall and air temperature between 1970 and 2000 for the same time of year. Cooler and wetter conditions than the long term average during the fortnight leading up to crop flowering was used as indicators of higher risk of mildew infection. Assessment began three weeks before crops started to flower (GS 201). Click site names for further details. 
Downy mildew on cv. Quattro 2005 Click images to enlarge |
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RAPID ACCESS TO THE LATEST REGIONAL CROP PEST AND DISEASE LEVELS |
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