John from Great Neck, Ny writes
My lawn is fine fescue, and I overseed every spring and sometimes in fall. The label states not to use Tenacity at the same time as seeding fine fescue. Thus, what would be the best strategy to use Tenacity on my lawn for pre and post-emergent purpose? Should I look for an alternative product?
Per the Tenacity label, you will not exceed 5 fl. oz. of product per acre for fine fescue. This is just the max amount that should be used per year and per acre. The rate that should be used is you will need to mix 0.5 tsp of Tenacity and 1.5 tsp of surfactant to one gallon of water covering 1,000 sq ft. Also, Tenacity should NOT be applied at the time you are putting down new seeds or overseeding. This will likely inhibit their growth. You will want to wait until the lawn has been established before applying this product for pre-emergent control. This is generally after three mowings. There are no restrictions for Tenacity with regards to post-emergent control of weeds.
Answer last updated on: 10/28/2015
