Written by Charlotte Cunningham
Recent cold, dry weather may have reduced the immediate disease pressure in cereal crops, but growers can mustn’t drop their guard against yellow rust and septoria at the main spring fungicide timings, according to the latest advice from Hutchinsons. Charlotte Cunningham reports. Yellow rust in particular is again causing concerns following reports of outbreaks in an unusually high number of varieties across some parts of northern England and Scotland during March, regional technical manager Cam Murray says. Coastal regions of Fife, Lothians and Northumberland appear to be particular hotspots. “Crops closer to the coast always tend to be at greater yellow rust risk, but what concerns us is its prevalence in several different varieties, including those where you wouldn’t expect it to be an issue. “We’ve therefore collected some samples and sent them for analysis to determine whether it could be due to the emergence of a new race.” Hutchinsons technical development director Dr David Ellerton reminds growers how quickly new races overcame genetic resistance of some important varieties last year, so growers must remain vigilant and maintain a protectant approach at T1 and T2. “The most common races in 2020 were from the “Red” group, with the main ones…
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