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stem rust control

Catalogue: GRDC Publications
Influence of fungicide rate (mean of fungicide products - four site mean) Stem rust control assessed over the four trial sites revealed that using high rates was essential for the control of the disease, even if the fungicide had been applied prophylactically (before infection was visible in the crop)... Influence of cultivar resistance and fungicide application (Prosaro ) on yield and stem rust severity measured on the flag sheath 18 days after fungicide application at early dough (GS82) and assessed at mid dough - physiological maturity (GS85-90) - Bairnsdale, Gippsland, Victoria, 2010... The yield potential for the crop with no nitrogen applied is estimated at GS30 from the results of numerous of trials conducted in that region where NDVI at GS30 is divided by the number of growing degree days (GDD) greater than 0 C since planting, referred to as the INSEY units (in season estimate of yield)...
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Catalogue: GRDC Updates
In order to take account of any possible product shortages in an epidemic year, fungicide products were evaluated across a range of rates (N.B. the use of fungicide or use at rates lower than the label does not constitute a recommendation in this report)... Seven fungicides were evaluated at four trial sites: 1... Influence of fungicide rate (mean of fungicide products - 4 site mean) Stem rust control assessed over the 4 trial sites (Figure 1) revealed that using ahigh rates was essential for the control of the disease, even if the fungicide had been applied prophylactically (before infection was visible in the crop)...
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Catalogue: GRDC Updates
STEM RUST IN WHEAT - AN ISSUE FOR AWARENESS AND IDENTIFICATION.. Description Stem rust initially produces reddish-brown spore masses in oval or elliptical pustules with torn margins, 3x10 mm on the stems, the glumes and on both sides of the leaves... It is likely that current varieties have greater resistance compared to those sown in the past but also at Gatton in 2009, the stem rust infection began late, at growth stage 59 "Emergence of inflorescence completed" ten days to two weeks after warm wet weather conducive to stem rust development...
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