Written by Charlotte Cunningham
Mixed weather patterns across many regions in the UK and Ireland are leading to localised outbreaks of late blight in potatoes, according to the latest announcement from Corteva. Charlotte Cunningham reports. Main crop varieties are closing in on the burndown phase but much of the planted area has up to three weeks left and it’s crucial that growers ensure they take clean crops into store. Corteva Agriscience’s field technical manager for potatoes, Craig Chisholm, says the crop protection and seed company has received a flurry of calls from growers and advisors on how to protect crops late in the season. “The risk is that tuber blight could be carried into store, caused by temperatures falling and rain washing zoospores into the soil. “Catchy weather may well extend the intervals between spraying blight fungicides, so we are advising growers to use a product that will protect the canopy for 10 days. “Some growers have the added complication of managing a stop-start cereal harvest at the same time as timing preventative blight sprays. Because of this, a product with some curative activity on blight will prove useful.” Providing late protection Craig says Corteva’s blight fungicide co-formulation Zorvec Endavia – launched this year…
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