Our beautiful cherry tree (4 years old) was virtually destroyed this summer by black cherry aphids. The tree survived, but all it's leaves, crops are gone. I cut all the branches a week ago (giving up the battle) and i just noticed today that even on the 10 new leaves that it has sprouted, there are MORE APHIDS on it already curling the leaves. This is the first year I've had this problem and NOTHING has worked. Tried insecticidal soap spray...nothing. Tried various soap and water recipies...nothing. Tried hosing them off...no good, too many of them. I erraticated (or so I thought) the entire tree with soap and water and tearing off infested leaves 4 times this summer only to see another horde infest it 4 days later. How in heck do you rid of these plague bugs?! I don't want to lose my favorite tree to these things for next year. They already destroyed everything this year. Thanks.