INSECTS AFFECTING PARK AND WOODLAND TREES 35 I 



is done at the time the insects are all in the larval or grub state, it will be 

 sufficient if the bark is stripped from the trees and allowed to dry. This 

 will kill practically ""all the insects, but in case there are considerable 

 numbers of beetles present, it would be wiser to destroy them at once by 

 burning. 



Bibliography 



1858 Fitch, Asa. Ins. N. Y. 4th Rep't 1857, p. 35-36 

 1890 Packard, A. S. U. S. Ent. Com. 5th Rep't, p. 711-12 



1899 Hopkins, A. D. W. Va. Agric. Exp. Sta. Bui. 56, p. 284, 294, 342,422, 445 

 1902 Felt, E. P. U. S. Dep't Agric. Div. Ent. Bui. 31, n. s., p. 64-65 



1902 Hopkins, A. D. U. S. Dep't Agric. Div. Ent. Bui. 32, n. s. p. 11-12 



1903 Felt, E. P. For. Fish & Game Com. 7th Rep't, p. 482-85 



Pine bark beetle 



Tomicus pint Say 



A light brown or nearly black beetle about 5/32 inch in length bores the thinner 

 pine bark near the middle portion of the trunk and that of the larger limbs. 



This species is about the same size as Tomicus cacographus 

 Lec. and similarly it is frequently associated with larger forms, specially 

 with Tomicus calligraphus Germ. It appears to confine its 

 attack largely to the white pine though it has been recorded from spruce 

 and larch. 



This borer was breeding in large numbers Aug. 18, 1901 at Saranac 

 Inn in a small dying white pine about 18 inches in diameter. The tree was 

 abundantly infested about midway of its hight and a few beetles were found 

 almost at the top and nearly to the base. This species occurred Sep. 15 in 

 considerable numbers under the bark of the upper portion of the trunk and 

 on the underside of the larger limbs of a large dying white pine at Lansing- 

 burg. This tree was also attacked by Tomicus calligraphus Germ, 

 which was exceedingly abundant in the thick bark near the base of the 

 trunk. Practically the same conditions as described above were found at 

 Bath-on- Hudson, across the river from Albany, except that the attack was 

 more advanced. This form was also concerned in the death of a number of 



