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Farmers sign in herePotassium deficiency is quite common in cereal crops following long term leys esp. where grass silage was intensively cut. The symptoms of a K deficiency is paper like symptoms on the tips of the leaves see image below.
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Crops are booting in many cases at the moment and will have heads emerging during the coming week. In general crops are relatively clean but there are some reports of crown rust and mildew.
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This pest has been seen in the past has been spotted in the past week in oilseed rape crops. Adults are active in crops but the damage is caused by larvae feeding on pods.
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Most crops are at flag leaf stage and will receive a fungicide this week with septoria being the main target. Most received the leaf 3 application in good conditions and so should have good coverage.
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