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Apple scab is a disease of Malus trees, such as apple trees, caused by the ascomycete fungus Venturia inaequalis. The disease manifests as dull black or ...


The most troublesome disease for apple growers in all parts of Minnesota is apple scab. Scab is caused by a fungus that infects both leaves and fruit. Scabby  ...


Importance. Apple scab is a very common disease, and one of the most aesthetically damaging diseases of several ornamental trees and shrubs in Minnesota.


A serious disease of apples and ornamental crabapples, apple scab (Venturia inaequalis) attacks both leaves and fruit. The fungal disease forms pale yellow or  ...


Vaillancourt, L.J. and J.R. Hartman. 2000. Apple scab. The Plant Health Instructor . DOI: 10.1094/PHI-I-2000-1005-01. Updated 2005. DISEASE: Apple scab.


Apple Scab is one of the most common diseases that attack apple trees. Apple Scab is caused by a fungus (Venturia inaequalis) which is most prevalent and ...


Photo by Janna Beckerman. Purdue extension. Fruit Diseases. Apple Scab on the Tree Fruit in the Home Orchard. BP-1-W disease Cycle. During the winter and  ...


Apple scab is one of the more serious diseases of ornamental crabapples. It is caused by the fungus Venturia inaequalis.


Apple scab is a foliar fungal disease caused by Venturia inaequalis. It is not considered a serious threat to crabapple or apple trees; however, repeated annual ...


UC home and landscape guidelines for control of Apple and Pear Scab.