I have 2 40-50 foot high japanese blueberry trees in my back yard. The larger they grow, the larger the area of the mess under the trees grows as the "droppings" encroach more & more across my lawn, towards my house, and on my other plants.  I am at my wits' end.  I have hired 4 or 5 different arborists and "tree experts" over the last 6-7 years. They have explained to me the aphid/honeydew problem, so I understand what is happening. I'm not attaching a photo -- I can tell you the leaves are more heavily coated, than not.  It just seems to get worse as time goes on.  Treatments have cost me hundreds of dollars and the trees are far too large to possibly "wash down" the leaves. The trees are pruned annually, they've been sprayed & their soil injected.  Nothing works.  I hate to cut them down because they look nice (from a distance) and provide nice shade.  Also, I'm afraid that removing them will diminish the value of my house and it will certainly remove a privacy barrier between me and my next-door neighbor.  And I'm a recent widow and would like to place this house on the market in the next year.  I have come to almost hate these trees and the problems they present. That side of my yard is virtually unusable as anything placed under the canopies inevitably gets coated with the unsightly black sooty mold.   If I remove them, I would need advice on what to replace with, if anything. Any help/advice would be very welcome -- I'm 100% frustrated after all the time, effort and money I have put into trying to solve this problem. Thank you in advance.