Can you recommend a certified arborist who would be willing to come to my property in Chaska and evaluate an Amur cherry tree that seems to be showing signs of stress this year? We planted it from a five-gallon pail approximately 10 years ago and it has thrived. It produced a bumper fruit crop this year but now the upper branches seem to be wilting. Through the years I have trimmed off branches that drooped to the ground and it could probably do with a professional pruning, but first I'd like to find out if it is diseased and what can be done to help it regain vigor.