INSECTS, DISEASES, AND SPRAYING 61 
The most important thing to know before 
spraying is, what we are spraying for. To 
this end it is necessary to have some idea of 
the many enemies, both insects and fungi, 
which prey upon the strawberry. 
It is, however, quite important that 
spraying begin quite early and continue 
as long as needed throughout the season. 
It is easier to check or control enemies when 
they first begin to be troublesome in the 
early spring than it is to try to overcome or 
subdue them after they have become estab- 
lished. In fact, with some insects and 
diseases it is very hard work, if not next 
to impossible, to do much to stop their 
ravages after once they have a good start. 
The more important pests are described 
below: 
INSECTS 
Root eaters.— There are at least three 
species of beetle which in the larval or grub 
stage live in the ground and feed upon 
the fibrous roots of the strawberry plants. 
As their life history and description are so 
nearly alike, they can all be called white grubs 
or June bug larve. These grubs are so 
