KNOW THE CAUSE; APPLY THE CURE 
Lawn, shrubbery and 
flower beds may harbor 
many kinds of pests 
These cone-like tips of Spruce 
shoots are the abode of a 
gall insect 
Brown tips a half- 
inch long to the 
Arborvitaeshoots 
in June indicate 
the presence of 
the leaf-miner 
It is quite likely that 
the sickly appear- 
ance of the Box edg- 
ing may be due to 
the recently intro- 
duced Box-leaf midge 
as shown enlarged 
here 
Many are not dealt 
with in the usual hand- 
books on garden insects 
Difficult to control because 
of the secure shelter. Not 
especially injurious 
Clustered bud- 
like objects on 
Spruce shoots are 
really the bud 
scale, sometimes 
destructive 
The Birches on Long 
Island are being gir- 
dled by a European 
hornet which of 
course severely in- 
jures the tree 
The European Pine- 
bud moth has des- 
troyed all but one 
shoot. Constant cut- 
ting and burning is 
the effective remedy 
The Pine-bark aphid may completely 
“whitewash” parts of the Pine trunk 
and branches. It is not to be con- 
fused with the blister-rust, a fungus 
Chrysanthemums in the greenhouse are attacked by a midge causing oval 
galls on leaf and stem, but fumigation or tobacco sprays keep it in control 
