What can you use in beds to prevent crabgrass and other noxious weeds? I need a product that won't kill emerging bulbs. A customer of mine who is "non organic," wants me to treat his beds with a product better than "PREEN." What can I use besides "SNAPSHOT," Lesco in my area doesn't sell it. Cost is defentaly a concern, I was thinking mabye a granuel Pre-m in the beds then a light watering... but I wanted to ask first........ thanks!