Tim from Michigan writes
"Unless renovating and/or re-seeding the home lawn, avoid broadcast applications of Tenacity for pre and post-emergence weed control because undesirable whitening of some turfgrasses may occur." What turfgrasses are susceptible to whitening? I have a Kentucky bluegrass, Perennial Ryegrass mix.
Tenacity Herbicide can cause lightening of turf grasses labeled as not tolerant. The application rate you should use to ensure the Kentucky Bluegrass and Ryegrass will not lighten is no more than 5oz per acre.
Answer last updated on: 07/07/2015