cherries dying on tree

Asked May 27, 2020, 7:58 PM EDT

My cherry tree had loads of cherries. But they seem to be rotting at the stem and then falling off. Leaves are also getting spotted and yellow. I sprayed with Bee Safe 3 in 1 Garden Spray 2 weeks ago, before it rained. I suspect aphids but think it must be worse than that. Any ideas? Thank you. JWB

Washington County Oregon

1 Response

Thank you for the images. Your cherries have Brown Rot Blossom Blight and Fruit Rot, a common fungus disease of stones fruits during wet, rainy springs such as this year.

Although it's now too late to spray, collect and discard all fallen cherries and do the same for affected fruits that cling to the tree. During the summer, prune off dead twigs and branches during dry weather.

Chemical treatment consists of an annual spray to minimize recurrence of the disease. Mark your calendar for bloom time next spring.

Four spray products are available to home gardeners. Choose from the following, then read and follow label directions to apply:
- Bonide Captan 50 WP
- Ortho MAX Garden Disease Control
- Infuse Systemic Disease Control
- Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate for Gardens.

Apply fungicides during the bloom period at early popcorn (red bud, pink bud, or green tip), full bloom, and/or petal fall to control the blossom blight phase.

If the tree is too large for you to easily spray, consider hiring a pest control company as they will have the appropriate equipment.