GIRDLING THE TWIGS 
by the beetle, usually deep enough for the twig to break entirely off. 
The beetles are at work in late summer. 
After girdling a 
twig the beetle lays 
eggs in it, and the 
larve bore in the 
twig, becoming full 
grown the following 
ane Ber dee summer. There is 
Fic. 335.—The Twig-girdler. : 
Original only one generation 
ginal. , 
Where young trees are seriously attacked, the 
beetles should be hunted out and destroyed. 
Fig. 
the Twig-pruner. 
Original. 
337.— Work of 
each year. 
All 
off should be 
gathered up and burned. 
twigs cut 
The Twig-pruner 
(Elaphidion villosum Fab.) 
Fig. 336.— Work of 
the 
Original. 
Various kinds of fruit and Twig-girdler. 
shade trees sometimes suffer 
the loss of terminal twigs, girdled by this insect. 
The work is done by the larva or grub of an 
elongate, dark brown beetle, a half to three 
Eggs are laid in the 
twigs in July, and the grub feeds within, finally 
gnawing a cireu- 
fourths of an inch long, 
lar groove as far 
outer 
bark, so that the 
as the 
Fo) 
twig breaks off, 
taking the grub 
with it. The 
fallen twig then 
Fie. 338. — Adult 
pruner. 
of the Twig- 
serves as its Original. 
