Wasps are seasonal pest insects, with their queen emerging from hibernation in spring, rapidly start building the nest and the wasp queen lays her first eggs. Nests are often excavated in dry soil or built in roof gaps. Although recent years have seen wasps becoming active in early April or May, the first worker wasps usually emerge in early summer months, usually in June.
Autumn is mainly the mating season between the males and queens and sees the social degeneration of the nest, as the workers may not return. During the cold season, the queen hibernates and all the males and worker wasps die. The complex nest is made redundant and never re-used, although it has been known for an adjacent nest to be built, so extra attention should be paid when removing old nests, especially during active seasons.