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DOES CORN GLUTEN MEAL REALLY PREVENT WEEDS?

  • Categories:News
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  • Time of issue:2021-07-30
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(Summary description)

DOES CORN GLUTEN MEAL REALLY PREVENT WEEDS?

(Summary description)

  • Categories:News
  • Author:
  • Origin:
  • Time of issue:2021-07-3013
  • Views:
Information

Corn gluten meal is a popular all-natural pre-emergent herbicide that will stop the germination of certain seedlings when properly applied. That means that it keeps weed seeds from sprouting. For this reason, it is important to apply it well before cool-season weed seeds get going in late winter and spring and warm-season weed seeds get going in summer.

Corn gluten meal is an all-natural byproduct of the corn industry. Essentially, it is comprised of corn protein. For this reason, it is not harmful to people or wildlife, while stopping some weed seeds from sprouting. With that said, there are some different opinions and studies with varying reports on its efficacy.

CORN GLUTEN MEAL AS A PRE-EMERGENT HERBICIDE

A 1990s Iowa State University study showed that corn gluten meal was an effective pre-emergent herbicide for some weeds. They found that it was most effective in stopping weedy grasses, such as crabgrass, as well as some broadleaf weeds, such as chickweed and dandelions. Corn gluten meal also contains 10% nitrogen, so it helps feed plants as well.

CORN GLUTEN MEALS HERBICIDAL SHORT-FALLS

Some studies show corn gluten meal, when not properly applied at the right time, can feed weeds due to its high nitrogen content. Thats because it does not negatively impact emerged weeds, so these will need to be hoed out or hand-weeded before applying any pre-emergent. It is also important to note that corn gluten meal does not work on all weed seeds. A Washington State Univerisity overview of corn gluten states: Corn gluten meal is not a selective product, nor is it effective on all weed types. Several species of weeds, flowers, and vegetables are inhibited by corn gluten meal, while others are not. Effectiveness in greenhouse trials generally increases with [the] application rate (as does the cost).

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