Asian Paper Wasps: impacts

Asian Paper Wasp impacts are not well understood in New Zealand. However, numbers appear to be increasing across New Zealand. Paper wasps feed on larvae and caterpillars of moths and butterflies. Paper wasps could be a cause in declining moth and butterfly numbers, which is a real concern. So controlling paper wasps (along with german or common wasps) should be considered as important as controlling any predator species.

All introduced wasp species are likely to be having a massive impact on our native biodiversity. It's just that it's difficult to quantify the loss of invertebrate species such as moths or butterflies. Plus the impact of the loss of these species on other flora and fauna in the New Zealand ecosystem landscape.

We only know that moths are critical for the reproduction of many of out native plant species. Plus form a part of the food web for other species, such as birds.

Unfortunately there is no targeted control of paper wasps available.

Locating their small nests and destroying them is the best option. More easily said than done. Nests vary in size (up to fist sized) and are often well hidden away.

Other than destroying these wasps where possible, there are options around deterring the Asian paper wasps from wooden surfaces.

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