Bud development of apple trees is mostly at tight cluster stage and peaches are near full bloom.
Apple scab ascospores were first trapped last Friday, March 16, but it was not wet long enough for infection to occur. Today abundant powdery mildew spores are present on emerging infected tissue, as shown below, and conditions are favorable for mildew infection.
Here is a healthy Idared terminal bud on the left; and a mildew-infected terminal bud on right. Mildew spores on emerging leaf tissue (below) are being dispersed for infection today.
