Tansy beetles on the River Ouse


The Tansy beetle (Chrysolina graminis),  so called for the adults’ and larva’s preference for the tansy plant is restricted in the UK to about 45 km along the banks of the River Ouse either side of York town centre. A recovery programme is underway to cut back invasive Himalayan balsam and so promote its food plant.

tansy beetle ouse

Image of “Tansy beetle” by Geoff Oxford – Own work via Wikimedia Commons