Unlike bees, wasps and hornets do not pollinate. But even though they’re not pollinators, wasps and hornets play an important role in our ecosystem: they eat insects such as spiders, flies, ants, caterpillars and bees, so they do control the populations of other insects. Hornets and wasps also like sugary foods, so if you’re drinking pop or fruit juice outside and there are hornets or wasps in the area they’re likely to pay you a visit!