What Is Quinclorac?

Quinclorac is a post-emergent herbicide found in the product Drive.  It is most often used in the control of crabgrass, sedges, and broadleaf weeds.

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A selective post-emergent herbicide that kills broad-leaf and grassy weeds plus Crabgrass in cool & warm-season lawns.

What does post-emergent herbicide mean?

This simply means that the chemcial chemical is most effective when applied directly dto target weeds after they have emerged from the soil. Refer to our Pre-Emergent Herbicides page for more information.

Mode of Action

Quinclorac is a synthetic auxin herbicide. This type of herbicide disrupts plant growth by interfering with protein synthesis and hormone balance. Scientist remain believe synthetic auxins have several sites of action but remain unclear on the exact mode of action.

Quinclorac Uses

Quinclorac is labeled for use in residential and commercial areas, including industrial turfgrasses, sod farms, sports fields, parks and golf courses.


Quinclorac is labeled by the EPA as "slightly toxic", a potential ground water contaminant, and highly toxic to fish.

Herbicide Products Containing Quinclorac

Solitare Herbicide - 1 lb.
Drive XLR8 Herbicide Crabgrass Killer

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We sell professional do it yourself pest control (diy), exterminator and extermination insecticide, pesticide, chemical and bug killer treatment products to spray, eliminate and exterminate pests.

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