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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
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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 …