TL;DR
A post-emergent herbicide is a weed-control product applied to plants that are already up and growing, killing them through leaf and stem contact or systemic uptake rather than blocking germination. Selective formulas such as 2,4-D and quinclorac take out broadleaf weeds or crabgrass without harming turf, while non-selective glyphosate kills nearly everything green it touches.
What it means
A post-emergent herbicide is a weed-control product applied to plants that are already up and growing, killing them through leaf and stem contact or systemic uptake rather than blocking germination. Selective formulas such as 2,4-D and quinclorac take out broadleaf weeds or crabgrass without harming turf, while non-selective glyphosate kills nearly everything green it touches. Lawn programs time applications to young, actively growing weeds, when uptake is best.
Where it sits in the glossary
Post-emergent herbicide is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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