Debunking the Beer-Detergent-Aspirin Lawn Tonic: Why Homemade Crabgrass Recipes Don't Work

Q: I've been told you have a formula of Miller beer, Tide detergent, and something else for crabgrass. What was the last ingredient?

This supposed lawn tonic recipe and variants have circulated since the 1960s. Beer, detergent, ammonia, aspirin, tobacco, and other household items are prominent. No matter what hucksters say, science shows they don't work. Don't waste time. More details at bit.ly/lawnmyths.