I've read a lot about pre-emergent treatments in flowerbeds, and it sounds like I could save a heck of a lot of back-breaking labor pulling weeds by doing this. I was wondering if someone could give me an idea of the prices of some common pre-em's like snapshot or treflan and how much area can be covered for that price? I plan on getting my pesticide applicator license this year sometime, hopefully, but do not currently have it. The laws in my state allow pre-emergent treatments of non-restricted herbicides for commercial use as long as it is a minor part of the business, and basically, I just want to test out some of these pre-m treatments on some of my weed-ier accounts to see if they work as good as I'm hoping, and see whether it's worth getting my license. Any help would be much appreciated!