If they only have a single main entrance, I would cover the area with some plastic sheet leaving a small entrance. Once they are using that entrance, I would dose around the entry with foam wasp killer on a regular basis. Covering the entrance with loose material to retain foam would help. They will carry the insecticide into the nest. One needs more than one layer of protective clothing to guard against attacking wasps. A bee suit over thick jumpers/trousers is the order of the day. They don’t just sting once!
At this time of the year they are changing over to sugar feeding, so a sugary wasp trap, or three, could be very effective. Sugar-feeding wasps are no longer that useful as a pest remover from the garden.
If they are suger-feeding, they will likely only return to the nest later in the day?
RAB
At this time of the year they are changing over to sugar feeding, so a sugary wasp trap, or three, could be very effective. Sugar-feeding wasps are no longer that useful as a pest remover from the garden.
If they are suger-feeding, they will likely only return to the nest later in the day?
RAB