Hello, My sour cherry tree has rolled leaves, some with brown edges. A plum and sweet cherry trees next to it are also affected, but in much less degree. I tried sprinkling it with colloid sulfur thinking it might be some fungus infection, but it did not help. Can anybody please provide an advise? Thanks, Max
Not sure if this helps. A UBC discussion http://www.botanicalgarden.ubc.ca/forums/showthread.php?t=10377 Under leaf curl http://www.caf.wvu.edu/kearneysville/wvufarm8b.html#CHERRY Insects: Black Cherry Aphids This problem is reported wherever cherry trees are grown. Black Cherry Aphids are the only type of aphids that affect cherry trees. The aphids are small soft-bodied insects about 3mm in length and may or may not have wings. Affected leaves become stunted, twisted and curled. The Honeydew secreted by the aphids drips on the leaves, fruits and surrounding ground. Ants may be present. A black fungus begins to grow on the honeydew where it has fallen. Treatment includes spraying with an insecticide to kill the aphids. http://www.treehelp.com/trees/cherry/iandd.asp
