348 WEST VIRGINIA EXPERIMENT STATION. 



April 30th, and reached Morgantown on May 4th. The swarm 

 was also reported from different points along the W. Va. & 

 Pittsburg R. R. and from Pocahontas and Greenbrier counties, 

 which would indicate that this remarkable occurrence was 

 quite general throughout the spruce and pine areas. The fact 

 that the turpentine beetle had been found so common attack- 

 ing living trees and occurred in such enormous numbers in 

 these swarms, together with the fact that numerous other 

 species occurred in the swarms and in the bark of dying trees, 

 led one very naturally to the conclusion that even if the 

 destructive species had become extinct, the timber would con- 

 tinue to be killed by these surviving bark beetles. 



CONDITIONS IN TUCKER COUNTY. 

 PITCH PINE. 



On my way to the spruce forests owned by the Condon Lane 

 Co., I found on May 20th, some pitch pines in Tucker county, 

 along the Dry Fork of Cheat, that had been defoliated by a 

 sawfly larvae. Here as in the pines, in different sections of the 

 State, i observed the turpentine bark beetle (Dendroctonus 

 terebrans) in great numbers, attacking and mining beneath the 

 bark at the base of the trees. No other bark beetles were at- 

 tacking these defoliated pines. 



CONDITIONS IN TUCKER COUNTY. 

 WHITE PINE. 



In the section mentioned above there was found numerous 

 white pine trees along the road and in every tree examined, 

 the turpentine bark beetle was more or less common, mining 

 in the bark of the living trees at the usual point of attack. A 

 few of the trees had died from the attack of the destructive bark 

 beetle, and others were dying from previous injuries, but no 

 living examples of this insect were found. The living trees 

 that were being attacked by the turpentine bark beetle showed 

 no indications of injury from other insects or other causes. 



CONDITIONS IN RANDOLPH COUNTY. 

 SPRUCE. 



Entering the spruce forests on May 2lst in Randolph county, 



