I used it with a surfactant in the back yard and it has been extremely effective. Thanks so much for the recommendation. Now I have an out of control fungus problem to address. I will save that for another post. Lol

I used the Celsius combo in the front yard at around 4pm yesterday. This morning we got a surprise 10 min medium rain out of nowhere. Should I reapply celsius in a few days to make sure the treatment sticks?