Has your pre-emergent held out this season? I know with all the rain we have gotten the protection is virtually gone and many people have continued to mow at a 1.5 inch height to only make things worse. For the most part the pre-emergent has done fair but wondering how everyone else in the midwest is fairing, Ind. Ill. Oh, Pa, Mi. ? We have used pendimethalin, Team, and Dimension.