Defra approves release of parasitoid wasp to protect sweet chestnut trees

Defra has approved the release of a parasitoid wasp called Torymus sinensis to help reduce the spread of the invasive Oriental Chestnut Gall Wasp.

by Dan Symonds
Torymus sinensis - credit: Dr Chris Malumphy, Fera Science
Torymus sinensis - credit: Dr Chris Malumphy, Fera Science

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