There are several damaging diseases and pests that affect these trees. Some of the most common are: Black Cherry Aphid These tiny soft bodied, black insects eat the leaves of the tree causing them to become twisted, stunted and curled. The aphids also secrete honeydew which may cause black fungus to grow.Click to see full answer. Also know, how do I get rid of bugs on my cherry tree?Coat your cherry with insecticidal soap as soon as black cherry aphids are active, or wait until after the petals fall from the tree to apply imidacloprid to the soil around your tree. Repeat applications of insecticidal soap weekly until you don’t see any more aphids on sticky cards if you choose this option.Similarly, what kills cherry trees? Once the leaves curl it is impossible to get spray where it’s needed. Remove and destroy affected leaves and spray all over the tree, especially the undersides of leaves with garlic spray or pyrethrum. Do this at dusk as bees often feed on the red nectar glands at the base of leaves and wet pyrethrum will kill them. Also to know is, why does my cherry tree have holes in the leaves? Cherry leaf spot is caused by the fungus Blumeriella jaapii. The fungus produces small purple spots on the upper surface of the leaves. Eventually the spots turn reddish brown. After several weeks, the centers of the spots may drop out, producing a “shot-hole” appearance.How do you get rid of cherry aphids?For stubborn infestations, early spring is also the best time to spray black cherry aphids with horticultural oil, a natural substance that will kill the aphids as they hatch. You can also spray affected trees with insecticidal soap, but don’t spray when temperatures are very warm, or when bees are present.

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