National Trust to deploy tiny wasps to stop moths destroying rare treasures at heritage sites

In what is thought to be a first-of-its-kind trial, staff at Blickling Hall, Norfolk, will deploy tiny parasitic wasps and chemical pheromones to try to prevent the moths from causing serious damage to carpets, furniture, clothing and other wool and silk objects.

Results from the conservation charity’s latest annual pest survey at historic properties showed that pests and moulds thrived with less disturbance from visitors and staff during the coronavirus lockdown.


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