my matar leaves have white powder and the pods have damage, how to manage both
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A white powdery coating on leaves, stems and pods is powdery mildew, the main disease of peas, which appears in cool dry weather and worsens late in the season, so grow a resistant or tolerant variety, avoid dense crowding, and apply a recommended fungicide following the label at first sign if pressure is high. Late sown crops suffer more, so sow on time. Pod borer and sometimes aphids damage flowers and pods, so scout at flowering and podding and spray only when the pest crosses the threshold, respecting the pre harvest interval. Rotate recommended molecules to avoid resistance. Take samples to your KVK to confirm and get the current recommendations for your area.
Sowing on time and a tolerant variety cut my powdery mildew a lot. The late sown plots always got it worst. An early spray at first white patches keeps it from spreading.