| Re: Sawfly Caterpillars?
i have exactly the same species on my silver birch...knew it was some form of sawfly and this is the first exact match i have found via google....only noticed them today and they are already stripping the tree bare (only 3 year old).....i am wales north of swansea (in the valleys isnt it) if location helps ......
have been looking at a way to alleviate myself of these without harming any other wildlife around me as i have several nests and a hedgehog in the garden, not to mention my dogs...the best things i have found so far which both claim to be organic are Rotenone (otherwise known as derris) or pyrethrum...bit worried about the affect they may have on beneficial insects though...if anybody can answer asap i would appreciate it as i need to rid these critters before loosing my tree |