Anthracnose in apples
What is the best time to treat for anthracnose in apples (akane)?
Lane County Oregon
Thanks for your question about your apple trees. Assuming you're a homeowner (as opposed to a commercial orchardist), Monterey Liqui-Cop is available to you, and should be applied before the fall rains (!) and again a month later, after the leaves have fallen. You can read a thorough explanation of the disease and cultural controls here. Note that removal of cankers is necessary in addition to chemical treatment. Please be sure to follow all label directions for a safe and effective treatment. Hope this is helpful. Good luck!