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Integrated Pest Management · Agriculture and Natural Resources

University of California

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  • Homes, Gardens, Landscapes, and Turf

Plant diseases

Choose a button or view a list of ALL PLANT DISEASES.

Flowers Fruits, berries, nuts, vines Lawns and turf
Trees and shrubs Vegetables and melons

Detailed information about certain plant diseases can be found in the Pest Notes Library.

Powdery mildew, Sphaerotheca pannosa, on rose. Newly emerged inky cap mushrooms, Coprinus comatus. A maple leaf spot, possibly Phyllosticta minima, damage to maple. Blackened fruit and bacterial ooze are typical of fire blight infection. Foliage damaged by rose rust.