64 MODERN STRAWBERRY GROWING 
Owing to the rudimentary condition of 
the wings of this insect, it does not pass 
rapidly from one field to another, so trouble 
from this source would be considerably 
modified by a good system of rotation. If 
plants are to be taken from old beds they 
should be removed before the insect lays 
its eggs. Spraying in the fall with arsenates 
will result in the destruction of many of the 
beetles. The burning over of old beds after 
picking the crop is very beneficial in destroy- 
ing great numbers of these insects. 
Leaf eaters.—The most injurious insect 
of the strawberry is the leaf roller. This is 
a small, brownish caterpillar that folds one 
of the sections of the leaf of the strawberry 
by fastening the upper surfaces together 
with very fine silken threads, feeding upon 
the enclosed surface until the leaf turns 
brown. When the larva is full-grown it 
is about half an inchlong. It then pupates, 
or rests, inside the rolled leaf, emerging as 
a moth in midsummer, being in turn able 
to lay eggs for a second brood of cater- 
pillars, even three or four broods a year 
being hatched in the Southern States. 
The remedies are simple, consisting of 
