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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.

5 votes
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Is it safe to use herbicide without clear withholding period?

This Monsanto page says that it depends on the strength of the product used. For the product used on perennial weeds, wait 72 hours. Glyphosate is a contact killer that is taken up by the leaves, an …
Graham Chiu's user avatar
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1 vote
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What is proper way of disposing weed treated with herbicides?

I wouldn't compost it ... that's the threat that inadequate commercial composting operations bring to your garden, the introduction of herbicide contamination that then gets applied to your plants. …
Graham Chiu's user avatar
  • 23.4k