Application to release two new biocontrols to combat wasps

Your view is sought on an application to release two parasitoids as biological control agents for the invasive German and common wasps.

Tasman District Council, on behalf of Vespula Biocontrol Action Group, has applied to us to release two organisms new to New Zealand – the wasp-nest beetle, Metoecus paradoxus, and a hoverfly, Volucella inanis.

The applicant says the wasp population poses a significant threat to primary industries and conservation, by impacting biodiversity and the food supply for native insects, birds and lizards. The wasps also attack beehives, reducing pollination for farmers and the production of honey.

Pesticides, the main control method currently used, have limited effectiveness when infestations are hard to reach or find, the applicant says. They are also expensive, labour-intensive, potentially hazardous to non-target organisms, and treated areas are quickly recolonized by queen wasps from non-treated areas.

The applicant says using the proposed new organisms as biological control agents would be a sustainable option to reach out-of-range wasp populations, and would reduce the damage they cause.

You have until 5.00 pm on 10 November 2020 to have your say.

Read the application documents 

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