The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 390
seemed to be the natural explanation of the fact,because we found only two or three of the insects in burrows inthe trunk, in which they had only penetrated about an eighth ofan inch, and had then died, the head being directed inwards.The female of this species ordinarily burrows horizontally… … a remarkable circumstance, that this stripping off of the youngtwigs takes place annually, without the death of the tree beinga necessary consequence; thus proving that it is the burrowingof the larva which is the cause of the mischief. In the case ofthe elm, however, the burrowing of the males and…
