The Forestry Commission England has stated that the oriental chestnut gall wasp has been found in more than 801 locations this year in South-East England. This is a dramatic rise since 2015. While the wasp poses no risk to humans, its larvae cause abnormal growths which can and weaken trees, making them vulnerable to other pests.
Despite the wasp being a low-impact pest of sweet chestnut trees, in high numbers, they can lead to devastating effects on the trees. Not only will it make them weaker, but also vulnerable to diseases such as chestnut blight.
If you're concerned about gall wasps, get in touch with our expert team for advice and action. Call 01702 216 766.