108 SOME INSECTS INJURIOUS TO FORESTS. 



Page. 



Fungi, forest, and forest insects, interrelation 69 



Fungous disease of Cyllene robinise 36 



I^'ungus, wood-staining, following work of ambrosia beetles in conifers 63 



Furniture, injuries by powder-post beetles 66 



Girdling trees to avoid injuries from insects that infest crude forest products. . 80 



Golden-rod flowers attractive to adults of Cyllene robinise 2, 6, 7, 13, 33-34 



"Grease spots " in timber caused by Corthylus columbianus 61 



Gum, manufactured unseasoned, injuries by Pterocyclon mali 65 



Handles, finished seasoned, injuries by powder-post beetles 66 



prevention 82,83 



in the rough, injuries by ambrosia beetles and roundheaded borers. 65 



insects, prevention 81 



powder-post beetles. . . •. 66 



Hardwood trees, insect injuries to wood of those dying and dead 64 



Hemirhipus fascicular is, enemy of Cyllene robinix 35 



Hemlock tanbark, injuries by insects 66 



prevention 83 



Hickory barkbeetle. (See Scolytus quadrispinosus .) 



bolts, injuries by insects 65 



handle and wagon stock, unseasoned, injuries by insects 65 



prevention.. 81 



handles, finished seasoned, injuries by powder-post beetles 66 



prevention. 81 



hoop-poles, injuries by insects 65 



injuries to wood of dying and dead trees by insects 64 



products, seasoned, in yards and storehouses, injuries by powder-post 



beetles 66 



trees killed by Scolytus quadrispinosus 60 



Hoop-poles, hickory, injuries by insects 65 



Hopkins, A. D., paper, "Additional Data on the Locust Borer {Cyllene robinix 



Forst.) " 31-40 



"Insect Depredations in North American Forests and 



Practical Methods of Prevention and Control " 57-101 



"The Locust Borer (Ci/ZZene rokma? Forst.)" 1-16 



Hubs, finished seasoned, injuries by insects, prevention 82 



Implement stock, unpainted, injuries by insects, prevention 82 



Insect depredations in North American forests 57-71 



and practical methods of pre- 

 vention and control 57-101 



and practical methods of pre- 

 vention and control, conclu- 

 sion 91-95 



character 57-67 



control, general principles 72-73 



methods 71-91 



damage therefrom, general esti- 

 mates of amount 92-93 



damage therefrom, summary 

 and estimates as to charac- 

 ter and extent 69-71 



extent 57-67 



prevention methods 71-91 



reduction in cash revenue 



thereby 71 



