Botrytis Blight of hydrangea

Disease Information

Botrytis Blight

Symptoms

Petals turn brown and fall. Leaf spots form, especially where faded petals have fallen. Flower buds are killed before opening.

 Management

Space plants to insure good air circulation. Maintain low humidity. Avoid watering late in the day. Remove crop debris. Apply chlorothalonil, iprodione, mancozeb, or vinclozolin.

 



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