Works well on Kyllinga
By Jp on 06/02/2018
I had a pretty serious invasion of Kyllinga in a section of my northern grass lawn (Ky bluegrass, fine & tall fescues, and perennial rye mix). In early May (typical daytime temps 80*F), I applied Sulfentrazone 4SC at a 6 oz./acre rate with a 2gal pump sprayer with a fan tip. At this rate, it killed broadleaf weeds in 48 hours or less. The Kyllinga took 3-4 weeks to die, as did a few spots of nutsedge, but control was very effective. It did no notable damage to the lawn grasses. Note that at this rate, the amount of product to use is very small. In 2 gallons of water I used 0.135 fl. oz. (3/4 tsp or 4mL) of product sprayed over +/- 1000 square feet. I have not yet used it with the intent of broadleaf weed control, but it seems that it would be very effective for this. I do plan to use it for late summer/early autumn pre-emergent weed control, but that will have to be a separate review.
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27 of 28 people found this review helpful
Killed most of my goosegrass
By Trs on 10/11/2019
I am impressed
By Paul on 10/16/2023
I applied Sulfentrazone as part of my final weed cocktail this season. My cocktail included a small dose of Biomin Boron as my soil test said I was low on Boron, I also included TRIAD Select and a low dose of Sunniland 28-0-0 fertilizer. It did cause whitening of the tip of my grasses but all the poa annua, goose grass and even the rest of the crab grass are finally been smoked. I am not worried about the whitening of some of the grass because I know it will grow out, but I just can't stand the poa annua. Its like I am wasting money. I know I have to be patient.
