Made one today with
wood chips. I came in about the time Asiatic mosquitoes started attacking.
When I removed the tarp to use to collect and hold grass + soil from my 25 x25 foot future garden (with some limping fava beans, happy cereal rye, plus garlic next to favas about 6 inches down).
I saw a new ant colony that established under the tarp. Typical small ferocious red
ants, found one japanese beetle, two orange type ~1 inch worms? and fed them to the happy ants. Covered them with tarp at end of
project.