120 TREE WOUNDS AND DISEASES 



burrows are readily discovered by the sawdust 

 at their entrances. The goat moth is met 

 with all over the London area, and the damage 

 to trees by its persistent attacks is sometimes 

 serious. Three-quarters of a century ago, 

 when the grounds of the Royal Botanic Society 

 in Regent's Park were in course of formation, 

 it was found that a number of the elm trees 

 growing around the boundary were more or 

 less affected by the goat moth. Many of the 

 trees were sick, and some so unhealthy as to 

 be beyond recovery. The services of Robert 

 Marnock, the landscape gardener, were called 

 into request, and the following remedy was at 

 once adopted. The hole, or gallery, formed 

 by the grub was cut into by means of a 

 carpenter's round chisel, and filled with a 

 compound of soot, lime, cow and horse manure, 

 formed into a thick paste. The elm bark 

 beetle, which had accompanied the goat moth 

 in its course of destruction, was dealt with by 

 smearing the bark with a thick paste of the 

 same ingredients as that employed to fill up 

 the holes in the stem. Marnock reported, 

 forty years afterwards, that the results of these 



