Because I have children but hate weeds, I started using a natural weed killer made from corn gluten. I couldn't care less about crab grass on my lawn. My concern was placing pesticides in a vegetable garden. So, for $13.99, I ordered this product in early Spring from Greenfeet. So far, as you can see, barely any weeds (and I want you to know I was rained on just to take this shot - not fun when you're sick with a child-generated natural colonic!).
A few facts about this product: It's effective against Barnyardgrass, Smooth Crabgrass, Curly Dock, Green Foxtail, Black Nightshade, Orchardgrass, Shattercane, Purslane, Wooly Cupgrass, Giant Foxtail, Lambs Quarters, Buckhorn, Quackgrass, Velvetleaf, Annual Bluegrass, Dandelions, Creeping Bentgrass, Black Medic, Redroot Pigweed, Catchweed Bedstraw, Clover, and other common garden weeds.
When used as directed, Weed Prevention Plus will not harm beneficial insects, soil organisms, pond, or stream life. There's no waiting, warnings, or worries. Safe for children and pets. Weed Prevention Plus is composed of 100 percent corn gluten meal. Children and pets can play on the lawn immediately after application. Safe for vegetables, flowers, and lawns.
Since Weed Prevention Plus kills only the root of sprouting seeds, it can be used with confidence around established plants, including transplants, flower beds, shrubs, and roses. When your flower or vegetable sprouts have true leaves, it is safe to apply weed prevention plus even up to the day of harvest.
(UPDATE: As of June 22nd, I have had next to zero weeds. This product works and who knew that starchy sugars could kill a weed?)