256 



NEW YORK STATE MUSEUM 



forestry with an experimental tract of 30.000 acres, is another evidence of 

 the importance of our forest resources. The general interest in forest 

 exploitation, using the term in a strictly economic sense, is attested farther 

 by the fact that the demand for competent foresters by both federal and 

 state governments and private individuals, is far in excess of the supply. 

 The trend of the times points to a more scientific, careful administration of 

 forest areas, and it logically follows that the insect enemies of our trees 

 should be the subject of more extended investigations for the special 

 purpose of ascertaining some practical methods of controlling the more 

 dangerous species on wild land. This work, in bringing together many 

 scattered records, should prove of great value in all subsequent studies 

 along these lines. 



ENEMIES OF DECIDlHirS TREES 



Wood and bark borers 



Broad, irregular, shallow galleries in the inner bark and outer sapwood of oak, hickory and 

 several other trees, may be the work of this species 



Rustic borer, X y 1 o t r e c h us c o 1 o n u s, p. 259 

 A slender grub ^^ inch long and not quite ^^o inch thick, bores in the solid wood of white 

 oak, changing to a weevil with a rather i)rolonged, thick snout 



Northern Brenthian, Eupsalis m i n u t a, p. 261 



A blackish, golden marked beetle about ^ inch in length, is frequently bred from hick- 

 ory logs Painted hickory borer, C y 11 e n e p i c t u s, p. 264 



A brownish beetle about }2 inch in length, may be found on cut hickory the latter part 

 of May, the large, fleshy grubs making irregular, longitudinal burrows in the wood 



Banded hickory borer, C h i o n c i n c t u s, ji. 267 

 Large,- cream)' yellow grubs excavating large holes lengthwise in the inner bark and 

 sapwood of living hickory, oak, and possibly some other trees 



Tiger hickory borer. Goes t i g r i n a, ]j. 268 

 A large, white, legless grub making good sized galleries in bark and sapwood 



Hickory Saperda. S a j) e r d a d i s c o i d e a, p. 269 



Girdled and occasionally severed twigs and branches of hickory and various trees, may 



be the work of a thick bodied beetle measuring from a little over J2 to nearly ^ 



inch iftilength, the wing covers of the male being irregularly dotted with faint, tawny 



: spcrts.'.i ; ,.'.^...., Tw-ig girdle, O n c i d e r e s c i n g u 1 a t u s, p. 2 7 j, 



A black, Jong snouted beetle about yie inch in length, breeds commonly in dying and 

 dead hickory limbs Hickory snout beetle, M a g d a 1 i s o 1 y r a, p. 274 



