Pat from Mcalester, Ok writes
When can I apply Echelon to control nutsedge?
You would apply Echelon 4 SC as a pre-emergent for Nutsedge and other weeds in the early spring prior to weed germination. Usually starting in February and again in 6-8 weeks for split applications. Please see the product label for rates on your grass type.
Answer last updated on: 02/05/2019