cherry tree problems - Knowledgebase Question

Golden, CO (Zone 4)
Question by covertcons
June 25, 2008
I have a sweet heart cherry tree I have had for 2 months. Now the top leaves are curling up and dying and there is sap coming out of the tree toward the top. Any ideas?

Answer from NGA
June 25, 2008


The oozing sap symptom is a general one, called "gummosis". Trees produce the gummy sap in response to diseases or insect invasion. The curling leaves indicate aphid feeding. It's hard to spray the tops of trees unless they are very small but if you thoroughly spray the leaves with insecticial soap, you should be able to control the aphids. If you can't reach the top of the tree, just sit back and wait for ladybugs to find the aphid population and control it for you.

Best wishes with your cherry tree!

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