Customer Reviews for Quinclorac 75 DF Herbicide

Mixed the solution per the instructions concerning square footage. Sprayed the entire yard and then gave the crabgrass a double dose. Waited two weeks and: all the clover in the entire yard died. Nice healthy crab grass. Mixed up another batch and again sprayed the entire yard and then gave the crabgrass some extra. Waited two weeks again: a nice healthy crop of crab grass, none of it died. Weeks later now still not a single crab grass plant died. Have begun pulling the crab grass out by hand.

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5 of 10 people found this review helpful

Doesn't seem to be as affective as everyone claims, I sprayed this almost 2 weeks ago on my yard , treated 1k area so I used my scale to get an acurate weight of suggested dosage for 1k. Hand sprayed my area with a backpack sprayer set to fine mist, and I show very minimal signs of weeds turning brownish, but that is minimal. Not sure if it's the time of year, or rainfall since app keeping the weeds still alive, or application error, or defective product, but my first app I am not pleased with my results.

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3 of 3 people found this review helpful

Mixed the product in a strayers and applied to crab grass. Waited a week to see if there was any change. Other weeds died. Applied second treatment after one week. Still no change in the grab grass.

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2 of 3 people found this review helpful

The clover in my lawn is basically laughing at this product. Didn't do a thing. I buy here because the box store herbicide/insecticide are usually ineffective. However box store herbicide wins over this product when treating clover.

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2 of 4 people found this review helpful

But this stuff hasn't affected my weeds at all. Clover, oxalis, dandelions, crab grass, etc. show no signs of dying. This is the second year I'm using it. I apply it with a backpack sprayer with a fan nozzle. Even some crappy hardware store Bayer at least deformed weeds if not killed a few, but this stuff is acting as if it's just water or something. I even bought methylated seed oil like the instructions said (which I really like and have been using with other spray products)! Welp, I'm off to try out a different company.

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2 of 3 people found this review helpful

This did not affect the weeds in my yard in fact it was like Fertilizer. This is the second Quin product I have bought but I will never buy again.

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2 of 3 people found this review helpful

This doesn't kill crabgrass or wild violets like it states on the label. Only killed a chunk of my paycheck

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1 of 1 people found this review helpful

Used this product twice. Followed directions exactly and no crabgrass died. Had to purchase Drive. Don't waste your money.

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Mixed per directions for spot treatment. Sprayed three days after mowing. About 4 days later, one or two crabgrass plants showed some signs of irritation, but the vast majority of them were perfectly healthy. After about 1 1/2 weeks they all look very healthy. Total waste of $$$.

  Expert response:
Quinclorac 75 DF can take up to 2-6 weeks and repeat treatments to completely kill crabgrass depending on the maturity of the plant. Per the product label: Complete control may not be achieved under certain conditions when applied at 2-4 tiller stage. Best results are obtained when treating before the second tiller stage or when fully mature and mix with a methylated seed oil surfactant.

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