Timberpig; you should ask your local ag rep about the atrizine. It may still have an effect. As to spraying after you plant; they say it doesn' t hurt the trees but I noticed a big difference in tree growth with the best being no simazine - mow only, then simazine the fall before and the worst growth from post planting simazine. The trees that were sprayed seemed to have very little growth, even if they had grown for a year before (with good growth).

Dan O.