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Norman from Marseilles, Il writes

Will Certainty Herbicide kill quackgrass that is mixed in with ryegrass and turf type tall fescue? I have clay soil and bare spots that harbor moss.

Should I consider killing off the lawn since it is overrun with quackgrass then till in topsoil, compost and do a Soil Test?

Answer:

Certainty Herbicide is only labeled to suppress or partially control quackgrass so it would not fully control it. A Non Ionic Surfactant is suggest to add to the tank mix for best results.   Also, Certainty is primarily for Warm Season Turfgrasses and labeled to kill tall fescue and perennial ryegrass in warm season lawns. 

Answer last updated on: 09/09/2021

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Certainty Herbicide - 1.25 oz.

Certainty Herbicide - 1.25 oz.

4.5 out of 5 stars

$124.98

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