Rich from Freeport writes
Is there any time interval required to use 4% Atrazine on Centipede after broadcast spraying Trimec Southern?
Since the Trimec Southern has a retreatment application of 30 days, we generally recommend waiting that long to apply another post-emergent herbicide. Centipede is a pretty sensitive turfgrass, so you do not want to put too much stress on it at once by applying multiple post-emergent herbicides at the same time. You may be ok waiting 1-2 weeks between these applications, but we suggest testing a small area for tolerance before treating the entire lawn.
Answer last updated on: 10/14/2019
