Fall roses; fungal diseases

Warm days, cool nights and dew in the morning means ideal conditions for fungi to make roses ugly!

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Powdery mildew attacks new growth and the stems of buds.

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The first sign of powdery mildew infection is curling up of leaflets. The fungi enter the leaflet on the under side.

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Another fungal disease, black spot, usually starts at the bottom of a rose, then defoliates the plant if not stopped. Prevention is easier than cure with fungal diseases.

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2 thoughts on “Fall roses; fungal diseases

  1. Pingback: Fall roses; fungal diseases | Natural Soil Nutrients | Scoop.it

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