Brote de castaño con agallas rojizas causadas por la avispilla

The chestnut gall wasp and the insect that stopped it

Galls like tiny honeycombs on the leaves and chestnut trees that stop bearing fruit. We tell you what the chestnut gall wasp is, why spraying doesn't work and how a small insect from China has helped chestnut groves recover.

— Eduardo Cifre