Wasp on wild angelica

This was the most succinct piece found on the internet:
Wasps are active from spring, when the hibernating queens wake up and make a small nest and lay eggs to create the first few workers (unlike bees, where the whole colony more or less hibernates). Also unlike bees, wasps are carniverous, so they tend not to bother us for most of the summer. They do however get addicted to a sweet secretion that is exuded by the growing grubs. In late summer, when all the grubs have grown up, the wasps no longer get their hit from this source. It is then that they turn their attention to the sweet things on our table. This is when we start to find them a nuisance.