Plant Diseases


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Groups of six to 50 or more black and shiny round dots that appear on the surface of the fruit. The individual “fly specks” are clearly separated. Fly Speck requires water on the fruit surface to infect the wax surface of the fruit.
It overwinters on twigs of various wild woody plants, especially wild blackberry and raspberry canes. Growing raspberries or blackberries near apple trees increases the risk of flyspeck, try to keep apples and brambles as far apart as possible.
Fly speck is most common in the damp, low, shaded areas of the orchard. Any practice that promotes faster drying of the fruit greatly aids in control. For example, prune trees annually to an open center for maximum air circulation. Thin fruit a few weeks after petal fall so there is only one developing fruit every six inches.
Remember that the disease is superficial and generally does not impact the quality of the fruit. Remove by washing, rubbing, or peeling the fruit as this results in fruit that is suitable for eating or cooking.