BORERS. 87 
the season—the second brood—repeats the operation of 
the first one, and the second brood of larve is hatched. 
The second larve do not transform into moths until the 
following spring. Now, it so happens that all moths do 
not appear at the same time in spring, so that there is a 
succession of Jarvas in each brood. This accounts for 
the fact that on the same day one may find larve of all 
sizes. 
PREVENTIVE. 
The only preventive with which I am acquainted is a 
systematic concert of action on the part of all who grow 
apples tv destroy the insects. In fact, it is almost use- 
less, or certainly discouraging, to make war upon any 
insect nuisance if one’s neighbors persist in making no 
effort in the same direction. This prevention is rather 
in the nature of a remedy, however. 
REMEDIES. 
As there is no method of trapping the moth, we must 
confine our remedies to the worm or larva. The old 
remedy is to avail ourselves of: the opportunity afforded 
when the larva leaves the apple and rolls np in its cocoon. 
Remove the rough bark, as recommended on page 44, 
and place a strip of woolen cloth, four or five inches wide, 
about the trunk. Under this cloth the insects will hide. 
In warm weather the transformation from the larva to ‘ 
the moth will take place in nine days; in cooler weather 
the time varies to fifteen days. The bands should be put 
on early in June, and during warm weather they should 
be examined about every eight days. Many of the last 
