Plant Disease Identification and Control

Information on plant disease identification and control, including rot, freeze damage, rust, blight, mold, scales, bacteria, viruses, fungus, wilt, mildew, gall, mites, moths and cankers. Tips on integrated pest management and herbicide summaries.

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Source: Mary Ann Hansen, Virginia Polytechnic Institute and State University, Bugwood.org
Bramble Disease - Spur Blight - Articles Articles
Red and purple raspberries are more affected by spur blight, Didymella applanata, than black raspberries. Blackberries appear to be immune. More
Source: André Bolay, St. Fédér. de Recherches Agronomiques de Changins, Bugwood.org
Raspberry Disease - Phytophthora Root Rot - Articles Articles
Phytophthora root rot, Phytophthora species, is now regarded as a major cause of declining red raspberry plantings. More
stem canker (Leptosphaeria coniothyrium). Photo: Florida Division of Plant Industry , Florida Department of Agriculture and Consumer Services, Bugwood.org
Bramble Disease - Cane Blight - Articles Articles
Cane blight is caused by the fungus Leptosphaeria coniothyrium, which also causes a canker on roses and a fruit rot of apple and pear. More
Photo by Kathy Demchak.
Raspberry Disease - Anthracnose - Articles Articles
Anthracnose, commonly called "cane spot" or "gray bark," occurs in several species of Rubus. More
Eric Coombs, Oregon Department of Agriculture, Bugwood.org
Raspberry Diseases - Crown Gall and Cane Gall - Articles Articles
Crown gall, Agrobacterium tumifaciens, and cane gall, Agrobacterium rubi, are bacterial diseases that seriously limit raspberry production in Pennsylvania. More
Source: K. Demchak.
Bramble Disease - Crumbly Berry - Articles Articles
Crumbly berry, also called raspberry bushy dwarf, is the most common bramble virus in the Mid-Atlantic region. It is caused by the tomato ringspot virus. More