If you propose on putting down a preemergent or crabgrass preventer with your lawn and also need to dethatch, it is best to dethatch to start with. Dethatching Once you put down your weed preventers and preemergent will disturb the barrier which was designed. How often do you have to https://weed-control98766.win-blog.com/14994437/the-ultimate-guide-to-lawn-mowing-winnipeg