How do you kill gnats that are in the lawn and tall grass?

Answer:
Please do not kill them there are natural predators such as bats, birds and frogs that need to live on these.
If you kill things you upset the natural balance of the local ecosystem and you will find something else that you don't like will appear and it will be even worse.
First answer by Fwmh. Last edit by Fwmh. Contributor trust: 977 [recommend contributor recommended]. Question popularity: 1 [recommend question].