Management of downy mildew in cucurbits

Downy mildew is a serious and common fungal disease in cucurbits. Due to temperature decrease at night and high humidity, angular-shaped yellow spots are formed on the upper part of the leaves.
Grey-brown to orange-black spores are visible on the lower surface of the leaves.
As the disease progresses, infected leaves become wilted and scorched and fall off.
Its symptoms appear as brown spots on ripe fruits, later the fruits become deformed.
The deformed fruit is edible, but it has little or no value in the market.
Chemical control – Spray Azoxystrobin 11% + Tebuconazole 18.3% SC 300 ml or Metalaxyl 8% + Mancozeb 64% at 600 gm/acre.
Biological control- Pseudomonas fluorescens can be used at the rate of 500 gm/acre.

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Downy mildew is a serious and common fungal disease in cucurbits. Due to temperature decrease at night and high humidity, angular-shaped yellow spots are formed on the upper part of the leaves.

Grey-brown to orange-black spores are visible on the lower surface of the leaves.

As the disease progresses, infected leaves become wilted and scorched and fall off.

Its symptoms appear as brown spots on ripe fruits, later the fruits become deformed.

The deformed fruit is edible, but it has little or no value in the market.

Chemical control – Spray Azoxystrobin 11% + Tebuconazole 18.3% SC 300 ml or Metalaxyl 8% + Mancozeb 64% at 600 gm/acre.

Biological control- Pseudomonas fluorescens can be used at the rate of 500 gm/acre.

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