BethB

Thanks @Anno. Interestingly I am seeing them settle on numerous shrubs, not just my trees but I can see no evidence, as yet, of them damaging my other shrubs. I’ve shared some more photos to illustrate where they are settling if you have an interest. You’re right, the numbers I am seeing are scary and from advice given they’re likely to multiply further during July and August.

@ABtrees thanks for your comprehensive reply, I appreciate your help. Just in response to your questions I live in Newport, South Wales. My main priority is protecting the trees and definitely the surrounding shrubs. That said, I would like to remove the beetles or even just get some control over the numbers. They’re coving my lawn too, clustered over my fence posts and many are on my windows/ conservatory windows. I think you’ve raised a brilliant point around predators and the possibility things will find natural balance. I just really hope that is true as I’m not keen on the idea of using pesticides. @Stere thanks for your response. It’s creative and I may just get to a point where I am desperate enough to try it!

Hi. Apologies if this is the wrong place to post. I have 10 Alder trees, with a Tree Preservation Order lining my garden. These trees are covered in what seems like millions of black beetle, possibly Alder Beetle. This happened last year and they shredded the leaves and they’ve returned this year. They’re all over the trees, surrounding shrubs and lawn. How can I control these and will they damage my other shrubs? Do I need to get professional help…. Any advice would be gratefully received. Thanks. Beth