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Crabgrass is a growing problem on the lawns of most homeowners during the Summertime and they can be quite stubborn when using mechanical or manual means of control. Pulling them or mowing them usually is ineffective. However, there is an answer to getting rid of these crabgrass and other difficult weeds via a tremendously effective selective herbicide we carry here at Solutions Pest & Lawn, Quinclorac.

Solutions Pest & Lawn has a quality selection of herbicide products which contain the active ingredient quinclorac.We here at Solutions Stores highly recommend Quinclorac and tout it to our customers as the ultimate crabgrass killer.. On this page we will share with you background info about pendimethalin, it’s mode of action and benefits. You can also access this page to shop our entire line of products with Quinclorac.

What is Quinclorac?

Quinclorac (Chemical name: 3,7-Dichloro-8-quinolinecarboxylic acid) is an active ingredient which is selective and is used post-emergently to control crabgrass, sedges, and broadleaf weeds. It is a systemic herbicide that may be absorbed by germinating seeds, roots and leaves, and it is translocated in the basipetal and acropetal forms.

Quinclorac was originally registered and introduced in 1992 to be used on rice crops. It is a selective compound for crops such as rice, canola, barley, corn, sorghum, and pasture.

Quinclorac is found both in home and agricultural use. It may be used in industrial and residential turf grass, parks, sport fields, sod farms, and golf courses. It is known for its clover and crabgrass control ( their are some types of smooth crabgrass that may be resistant). It is also used in sequential applications with MSMA to limit kikuyugrass in warm season turf.

How Does Quinclorac Work?

Quinclorac is highly selective and is known as a synthetic auxin. This means that its mode of action of clopyralid is that it operates like a plant growth regulator by imitating natural plant hormones called auxins. Auxins, which are found in all plant life found in nature, are responsible for regulating the amount, type and direction of plant growth, and are mostly found at the tips of plant roots and shoots. Quinclorac enters plants that have been treated through the leaves and roots, and replaces natural auxins at binding sites, causing abnormal growth patterns and disrupting the growth processes of the plant. 

The chemical builds up in the growing points of the plant, leading to rapid overgrowth, and eventual plant death. Death can usually arrive from as little as a few days to a couple of weeks.

View our selection of quinclorac-based products below. For more information about quinclorac or other active ingredients in our herbicides and insecticides, please don’t hesitate to reach out to us with your questions at 800-479-6583 or email us at askapro@solutionsstores.com

Featured Products Which Contain Quinclorac

Quinclorac 75 DF Herbicide (Crabgrass Killer) - Quinclorac 75 DF Herbicide is comparable to Drive XLR8 and is the best crabgrass killer available. Quinclorac is a post emergent crabgrass control product meaning you can spray it on actively growing crabgrass to stop growth and eventually kill it.


Drive XLR8 Crabgrass Killer - Drive XLR8 herbicide is the latest technology in providing unsurpassed crabgrass control. A proprietary, water-based formulation, Drive XLR8 improves the control of crabgrass, torpedograss, kikuyugrass, several broadleaves (clover, speedwell) and numerous other troublesome weeds


Quinclorac 1.5 L - Quinclorac 1.5L liquid herbicide is the latest technology in providing unsurpassed crabgrass control. However Quinclorac 1.5L treats and controls a wide variety of other grasses and broadleaf weeds in residential lawns, commercial establishments, golf courses, military and other institutions, as well as parks, athletic fields and many others . When compared to a dry flowable formulation, the new liquid formulation offers superior results


Is Quinclorac Safe To Use?

Although animal studies show that quinclorac has a low toxicity, it is toxic to fish. The EPA regards quinclorac as “slightly” toxic and can be harmful if ingested or inhaled. It is also toxic if it gets in the eyes..


While it is a relatively safe chemical to use, it is still highly recommend to use protective equipment (PPE) before applying quinclorac. Gloves, protective glasses and long sleeve clothing should be a the minimum level of protection when handling this chemical. Please refer to the product label for specific safety instructions.

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