Nov. i6, 1914 Apple Root Borer 185 



deposition of the egg rather than the killing of the borer after it begins 

 feeding. Where paints, washes, or mechanical devices of any kind are 

 used on trees as a preventive of injury by the roundheaded apple tree 

 borer, equal protection may be had against the apple root borer by 

 treating the trunks at about the time fruit is setting in the spring. The 

 egg-laying season is of short duration, and temporary wrappers of paper 

 or burlap, or any other material that will entirely cover the lower 2 feet 

 of the trunk for a period of four or five weeks following the blooming 

 season of apple, will in a large measure prevent eggs from being placed 

 on the bark. Treatment with sticky adhesives or heavy paints that are 

 not injurious to the trees will answer the same purpose. 



The apple root borers develop freely in the common service tree, 

 and the proximity to apple orchards of woods in which this tree flourishes 

 may always be regarded as a source of possible infestation to the orchard. 



