Bermuda Lawn – I Put A Double Dose Of Pre-Emergent In September

Q: I have a bermuda lawn. I did not put out a pre-emergent in spring, hence I’ve got lots of weeds. I’ve put out a double dose of pre-emergent in September. 

A: This is a situation where reading the label is very important. Some of the pre-emergent products cannot be used on a lawn twice in one year because they inhibit root growth. Putting a double dose of chemical on at one time could be self-defeating. Consider applying a lawn fertilizer now at half-strength to give the grass a chance to store some energy in the roots before it goes dormant.