THE ROUNDHEADED APPLE-TREE BORER. iN 
brush in the form of a band around the tree extending about a foot 
up the trunk and 2 or 8 inches below the level of the ground. After 
the paint is dry the earth removed in the beginning should be re- 
placed. The painting may be done more thoroughly and economically 
by two persons working together on opposite sides of the tree. 
The deterrent effect of the paint seems to arise from the mechanical 
barrier it presents rather than from malodorous or distasteful proper- 
Fic. 18.—Clump of service bushes showing exit holes of roundheaded 
apple-tree borers. (Original.) 
ties. The paint should cover the treated portion of the tree in a 
thick, solid coat, with no cracks or unpainted spaces left, as the 
beetles will seek cut such openings in which to oviposit. Any non- 
injurious paint that will form a coat of the nature described will 
answer the purpose. <A paint of pure white lead and raw linseed oil, 
mixed somewhat thicker than for ordinary use, will afford a fair 
