my lawn has alot of moths what causes this?

Answer 1

I got this from the web. It doesn't say what causes them, but it does say how to get rid of them organically. Good luck.

The moths do little damage but their larva, sod webworms, do. They can be controlled with judicious applications of Bacillus thuringiensis - Kurstaki.

Here is a link that might be useful: Sod Webworms