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Bull's Eye Rot of Apple and PearBull's eye rot is a disease that typically appears on apples during storage. Symptoms are usually not present at the time of picking. The disease is caused by the same fungi that cause perennial and anthracnose cankers on the limbs and trunks of trees. Spores may be spread from cankers to fruit any time during the growing season, but the risk of infection is probably greatest close to harvest.Symptoms:Fruit lesions are circular, brown and sunken with a target appearance due to concentric of gray to cream coloured fruiting bodies.
ControlCultural ControlPrune out and remove from the orchard as many cankers as possible during winter pruning. Remove any new cankers that develop on limbs and trunks during April through July. Remove as soon as they appear any 1-year-old terminal shoots that wilt or die suddenly during April through July; these shoots are probably girdled by canker. See also Anthracnose and Perennial Canker . Chemical Control Although fungicides applied for control of apple scab may suppress bull's eye rot, there is no evidence to show that sprays specifically for control of bull's eye rot are effective, or even needed if good cultural practices have been followed. February 2004
Return to Tree Fruit Pests and Diseases
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