Customer Reviews for Hi-Yield Grass Killer Post-Emergent Herbicide

I searched everywhere and bought your product to kill grasses growing in my iris beds. It didn't do anything g to kill the grass

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Wont kill anything 3 weeks two applications and nothing iv had better results with hard water.

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Hi-Yield Grass Killer has done an excellent job of killing the common bermuda in my centipede lawn. It took about two weeks to be totally noticeable, but it is certainly noticeable now. I regret that I waited so long in the summer to apply it. Plan to hit it hard next spring to try and totally eliminate it. I'm sure it has killed some othe unwanted weeds, but I mainly bought it for the common bermuda. This was done through spot treating.

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This killed the bermuda grass... and the plumeria that I was trying to save by killing the bermuda grass. Definitely not as selective as advertised. Didn't seem to hurt my mango tree, so it may be fine near trees.

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This is the only weed killer I have found, that kills cat-tails effectively. Not cheap, but worth it.

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The product seems to be working to selectively kill the Johnson grass out of my wild flower bed. The coreopsis is unharmed. It does take quite a while for it to die, however. It's been about two weeks and I may use a second treatment just to ensure that all the Johnson grass is completely gone.

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