I have one of those customers that always comes out when we show up to mow and it's always something with him. I will stand there and talk to him while my guys mow the entire yard and still wait. Every week it's about his photonias and I keep telling him to go to the local nursery. He's got three year old photonias that he's not happy with. New growth will come out and then leaves will curl slightly or have the rust spots. He thinks it's b/c we sprayed roundup behind his fence (big open field) but he has an 8 foot stockade fence and this was done on a non-windy day. he still thinks it went over the fence and on his photonias. Is anyone a photonia expert that could tell me something about these bushes? Could it be over watering, under watering, soil, etc.?