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Herbicides are chemicals used to kill plants. Use this tag with questions about how to choose and use herbicides on different plants.

11 votes

To be effective, how long does Glyphosate weed killer need to be applied before it rains?

From pioneer.com: "Foliar absorption of herbicides occurs in a liquid phase only; once a water droplet has dried on the leaf surface and herbicides have crystallized little to no additional absorptio …
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