Corn gluten meal is a natural herbicide for lawn and garden use. Because the meal is 10 percent nitrogen by weight, it also is a good fertilizer. Available in garden centers and at online retail stores, the product is an option for people who prefer to avoid chemical herbicides. Does this Spark an idea?
Function
Corn gluten meal must be applied during the pre-emergent stage of plants to control weeds. It inhibits seed germination by drying out the seeds as soon as they open to sprout, but will not eliminate plants that have already begun to grow.
Types
This natural herbicide product is available in unprocessed, granulated and pelletized forms. These have different uses and application techniques.
Specifics
Corn gluten meal is effective at controlling crabgrass, dandelions, foxtail, lambsquarters, purslane and other unwanted plants.
Application
The product should be applied in early spring and again in late fall. It usually requires reapplication every month or so for effective weed control.
Fun Fact
Corn gluten meal is a byproduct of the milling procedure used to make corn syrup and corn starch. It also is used as food for farm animals and is included in pet food.
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