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Thanks to a discovery at Iowa State University, corn gluten
meal can be used as a naturally effective herbicide to suppress weed growth. Derived from corn gluten, Corn Weed Blocker works on lawns, vegetable gardens and flower beds as an alternative to chemical pre-emergent herbicides. Non-toxic yet effective, it stops weed seeds from germinating spring through fall. (bag covers up to 1,000 sq. ft.)
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