[Roswell]

You need an ant trap:



https://www.farmandfleet.com/products/880880-more-birds-hummingbird-feeder-ant-guard-moat.html?blaintm_source=bing&blaintm_medium=pla&msclkid=b71a4c46b5901b2d14c028817d6a8cdc&utm_source=bing&utm_medium=cpc&utm_campaign=All%20Products&utm_term=4584070165159627&utm_content=All%20Products

As far as the yellow jackets / hornets, best solution is to find the nest and destroy it. You could also set up a trap for them...