WEST VIRGINIA GEOLOGICAL SURVEY. 



93 



Miscellaneous Injuries to Forest Products. 



Roundheaded borers, timber worms and ambrosia beetles 

 cause serious damage to small round timbers of many kinds, 

 especially when cut in the winter or spring and allowed to lie 

 with the bark on. The same classes of insects attack pulpwood 

 and cordwood of all kinds causing a loss, according to Hopkins, 

 of from 10 to 100 per cent. Ambrosia beetles often do serious 

 damage to oak and other hardwood planks when sawed and 

 stacked in close piles. Handles and stock for wagons and farm 

 implements are frequently injured by powder-post beetles 

 often to the extent of being entirely ruined. These insects are 

 especially troublesome in store houses where handles and other 

 small timbers are kept. 



Insects That Feed on the Foliage of Trees. 



Up to the present time the forests of West Virginia have 

 not been visited by such leaf-eating insects as the Gypsy moth 

 and brown-tail moth which have wrought such havoc in some 

 of the New England states. Several species of caterpillars that 

 feed gregariously on the foliage of oak have from time to time 

 been slightly injurious. Fall web-worms and canker worms 

 have done some damage in certain parts of the state and the 

 insects known as walking-sticks have been abundant for a few 

 years and have done slight damage to the leaves of deciduous 

 trees in Mineral county. 



The Catalpa Sphynx Moth has for several years been de- 

 structive to catalpa foliage in Kanawha, Mason and Ritchie 

 counties and probably in other southern and western sections 

 of the state. The Catalpa Midge {C ecidomyia catalpae. Comst.) 

 has injured the buds and foliage of catalpa in Upshur county. 



The chrysomelid beetle, {Monocesia coryli) has for several 

 years been very destructive to the foliage of elm trees in 

 Greenbrier, Monroe and Berkeley counties. The Rose Chafer 

 {Macrodactylus suhspinosus) has frequently been complained 

 of as injuring the foliage of black walnut, chestnut, ash and 

 other forest trees. The injuries from this species have usually 

 been confined to strips of country lying along the water courses 



