Matt from United States writes
I used Resolute 65 as a pre-emergent in the Fall and I wanted to see if I can use it again now for my Spring pre-emergent? I have heard that you should rotate pre-emergents, but I want to make sure either way.
Resolute 65 can be applied twice a year (spring and fall) because it is a pre-emergent. Please check with your local Master Gardener for specific application times in your region.
Answer last updated on: 03/02/2014