Hello, We have a customer who has roughly 25 Pond cypress trees around the perimeter of his pond. We have been string trimming around the cypress trees, pond bank, and everywhere else the ZTR cannot get to. We have been working at this residence for about 18 months +/-. The customer is alleging that we killed his cypress trees by trimming around them. Of course, we didn't run the trimmer wide open around the tree but there are some spots in the bark where it appears the trees have been damaged and some have perished. The cypress trees are about 3 to 3 1/2 years old; roughly 6 feet tall; 3 inches in stump diameter just above the ground. My question is, has anyone else been exposed to anything like this? Is it likely that trimming around the trees actually caused their demise? I don't know what this guy thought we were gonna do -- we gonna cut the grass around the trees with scissors?!?!?!?