What are the current thoughts on using corn gluten to discourage crab grass? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension

Question: What are the current thoughts on using corn gluten to discourage crab grass? Answer: Jonathan Foster, Home Horticulture Outreach Professional The UNH Extension has a great resource for homeowners on controlling crabgrass, including a nice summation of the corn gluten situation: “Some gardeners swear by the use of corn gluten as an organic pre-emergent herbicide, read more