Pest Status
Along with the German wasp and two species of Polistes (all invasive species), the common wasp is considered a pest species in New Zealand, as it competes with endemic species for food, such as insects and honeydew. In some South Island beech forests it's thought that densities of wasps are higher than anywhere else in the world. It's calculated the total weight of common wasps in these places may exceed that of all birds.
Read more about this topic: Vespula Vulgaris
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