I have a lady who thinks I killed her pear tree and shrubs. I sprayed Round-up within 2 feet of the tree trunk and 3 feet of the shrubs. I've never had problems killing anything I didn't aim at. I noticed that there were a lot of crawdad holes close to the tree and shrubs and the soil obviously has bad drainage as that area remained wet throughout this spring. I really think they receive too much water this spring. The tree is dead and the shrubs have turned yellow? Any input?