The other day I decided to kill some weeds right next to my temporary winter Ryegrass by using Atrazine. I read & re-read the label and found NO INFO on leaching etc....now,after doing a search here, I find some people have experienced problems with Atrazine being VERY MOBILE in the soil....have you found that to be true? Does anyone know what the residual is on this product? Please reply if you do. Thanks BTW: Atrazine is not restricted use around here,you can buy it anywhere.