We live in a rural area and have dealt with yellow jackets (aka ground wasps) for decades. This year we are faced with the biggest most intractable nest we’ve ever encountered. We’ve sprayed a full can of wasp death into it three times (at dusk) and there are still plenty of wasps although it has diminished the population by about half. There are at least two entrances about three feet apart and it appears that the entire space between them is solid with wasps.
Luckily they don’t get really aggressive until later in the year (it’s quite close to our house), but we feel stuck.
Any techniques or tips? It’s too dry here already to try that country method of pouring in kerosene and lighting it.