THE BLACKHEAD FIREWORM OF CRANBERRY. 41 
Heavily infested vines should have all of these three applications 
at the times mentioned and an additional fourth application during 
the first two weeks of July. In the application of this last spray an 
effort should be made to hit as many moths as possible with the spray 
solution. 
A 50-gallon barrel outfit on wheels, with a strong pump, will be 
found desirable for small bogs. For bogs larger than several acres in 
area, power outfits should be used. 
In making the applications great care should always be exercised 
to prevent injury to the vines. 
