Most of the queen's eggs develop into worker wasps, which can then become real pests in the late summer and autumn. It is important to realise that wasps themselves also catch plenty of insects, in particular harmful ones, and feed them to their larvae. A wasp colony can destroy up to two kilograms of insects per day. Nevertheless in autumn the community has already broken down. The wasps have only themselves to consider, there are no larvae, and their preferred food is carbohydrates.
Wasps can cause very painful stings that stay swollen for a long time and itch badly.