I took some time out to try getting rid of some paper wasps building up hives near entrances around the farm. I used a pest control drug called Neocidol that works as a strong repellent for two to three months, preventing the insects from colonising entire ceilings and roofs given the time.
What happens is once I spray the area including any existing hives, the wasps immediately leave the area and can't stick around any more. If they come back for their larvae, they die from ingesting the repulsive compound. They mostly live on to build nests elsewhere but on this occasion I noticed a bird feasting on the larvae left behind. Hope it wasn't harmed in the end, or its chicks if it fed them the worms maybe.
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