The Q&A Archives: Moths

Question: Hello my yard seems to have been invaded by moths. They were here right before I mowed and they are still here after I mowed. My lawn is mostly centipede and pensacola bahia. I heard an old tale once that when you see moths in your yard, you will soon have army worms. Any truth to that? How do I get rid of these moths they are getting annoying? I live in north cebtral Florida if that helps any.

Answer: Sounds like you are seeing the adult moths of a pest called sod webworms. You have a variety of choices for treating for sod webworms. The first choice is water. Sod worms prefer dry ground and will not tolerate constantly damp ground. However, this can be hard to achieve in the middle of summer when it is very hot and over-watering can bring on other problems such as various lawn diseases associated with water and high humidity. To kill sod webworm outright, pesticides may be the final option. It is best to treat in the late afternoon so the larvae will be exposed to the pesticides during their night feeding. Be sure to select an insecticide that lists sod webworm on the label and follow application directions precisely. Orthene Turf, Tree and Ornamental insecticide will work, as will the botanical Bacillus thuringiensis kurstaki sold as Dipel 2x, Dipel DF (Abbott), or Dipel 150 (Bonide). I don't think there is any truth to the old wives' tale about the army worms.

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