Customer Reviews for Quinclorac 75 DF Herbicide

I have never used quinclorac before and I'm about a week and a half since my 1st application and I'm seeing some yellowing. I'm assuming that is signs of death. I'm going to spot treat a couple more times until I hit dormancy in my Bermuda. I did the mixture as per bottle on 4 gallon sprayer. I was in a pinch and used dish soap as a surfactant and still seemed to work out and I don't reccomend that.

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This product works amazing got rid of all of my crabgrass

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I give the product a four star. It seems the post emergent crabgrass has suffered a severe blow. Gives hope for a weedless yard. The Quinclorac 75 DF is difficult to dissolve. This is an issue of concern for application.

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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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