Hi, I have an red leafed ornamental cherry tree that I planted 2 years ago. Every spring, it gets completely infested with aphids and I almost lost it last year. The new leaves all curl up and die. The same thing is happening now. I have sprayed it once and it doesn't seem to be helping. Is this going to be a chronic spring condition for this tree? What should I be spraying it with or should I replace it with something else as I hate to spray on such a regular basis. Thanks.