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Mike from Wilton, Ct writes,

How long does Tenacity take to kill plants?

I used the recommended spot treatment amounts of Tenacity with surfactant. Even applied 2nd treatment to most of it. Most leaves turned white as expected but not all and the weeds did not die. Now all it of appears to have recovered as most of it is a normal green. What do I do now? Try again? I am worried about applying too much but the nimblewill will not die but turned white.


The foliage of weeds treated with Tenacity cease growth after the application, then turn white (loss of chlorophyll), so death may take up to three weeks. A repeat application is required after two to three weeks for improved postemergence weed control.

Answer last updated on: 07/12/2015

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