Q: My back lawn was recently infested with army worms. I was out of town and didn’t notice it until it was too late. I sprayed B.t. and now they appear to be gone. Is it okay for me to fertilize my lawn and water it right away?
A: You are exactly correct. Armyworms are the caterpillars of a nondescript brown moth that is blown up from Florida by storms each summer. They damage a lawn by eating the green leaves but damage is not permanent. Feed with any lawn fertilizer and water it in to get your grass into recovery mode.