Introduction of the disease –  downy mildew is a serious problem of Cucurbit Crops like watermelon, melon, cucumber, pumpkin, Ridge gourd etc. Which is caused by a fungus called Pseudoperonospora cubensis. Once infested, the disease spreads rapidly, adversely affecting fruit quality and production.

Symptoms of the disease – Symptoms of the disease first appear as small yellow spots or water-soaked lesions on older leaves. A white downy mildew coating appears on the lower surface of the leaf. Due to the high humidity in the environment for a long time, the spread of the disease is rapid.

Disease control – Biological control – Spraying of Pseudomonas fluorescens @ 500 gm per acre can be done.

Chemical control – Spray Azoxystrobin 11% + Tebuconazole 18.3% SC @ 300 ml or Metalaxyl 8% + Mancozeb 64% @ 500 g/acre.

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