Jon from Alameda, Ca writes
I don't know what kind of flys they are but they are small and swarm out of the grass when I am mowing. I live in the San Francisco Bay area.
Talstar P is labeled to help control many types of flies and can be applied to your lawn. We do recommend that you contact your local cooperative extension office and try to get the fly identified to make sure you are choosing the correct product for your needs.
Answer last updated on: 05/04/2013