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Review Details

Tenacity Herbicide

Product Review (submitted on May 12, 2017):
Started treating my 30000 sq. ft. lawn in New Hampshire with tenacity and a surfactant last year putting down two applications about 2 weeks apart. First application was in late June and second in mid-July. Used concentration of 2 tsp per 4 gallons water. It took 7 full sprayers (28 gallons) to cover the entire yard. Some areas of the lawn were thick with nimblewill while other areas had sparse infestation of the weed. Tenacity started to show some whitening of the weed after about 5 days. I treated the entire yard and was surprised to see that I had nimblewill in areas I had not suspected. Results were mixed after all treatments were complete. Tenacity seemed to do the well in certain areas but definitely not 100% of the lawn. I used a 4 gallon backpack sprayer. Getting even coverage may have been my problem. Would suggest using a colorant which would help with even coverage. By the end of the season some areas of the lawn were bare dirt while other areas still had substantial nimblewill growth. Tenacity seemed to have no negative effect on grass in the lawn which is a northeast mix of blue, fescue and rye. Overseeded in the fall so bare spots began to fill in and by this spring lawn looked pretty good. Now, I am again seeing nimblewill in the heavily infested areas. In fact, some of the areas look worse than they did last year. Started treating the lawn again this year paying special attention to areas of thick nimblewill. Since this is the only product advertised for nimblewill control I am hoping that this years campaign will be more successful. Will come back and give an update.