Some insects injurious to forests . WASHINGTON: GOVERNMENT PRINTING OFFICE 1910. U. S. DEPARTMENT OF AGRICULTURE, BUREAU OF ENTOMOLOGY—BULLETIN No. 58. L. O. HOWARD, Entomologist and Chief of Bureau. SOME INSECTS INJURIOUS TO FORESTS. I. THE LOCUST BORER. By A. D. HOPKINS, In Charge of Forest Insect Investigations. II. THE WESTERN PINE-DESTROYING BARKBEETLE. By J. L. WEBB, Special Field Agent, Forest Insect Investigations. III. ADDITIONAL DATA ON THE LOCUST BORER. By A. D. HOPKINS, In Charge of Forest Insect Investigations. IV. THE SOUTHERN PINE SAWYER. By J. L. WEBB, M. S., Agent and Expert.
Some insects injurious to forests . WASHINGTON: GOVERNMENT PRINTING OFFICE 1910. U. S. DEPARTMENT OF AGRICULTURE, BUREAU OF ENTOMOLOGY—BULLETIN No. 58. L. O. HOWARD, Entomologist and Chief of Bureau. SOME INSECTS INJURIOUS TO FORESTS. I. THE LOCUST BORER. By A. D. HOPKINS, In Charge of Forest Insect Investigations. II. THE WESTERN PINE-DESTROYING BARKBEETLE. By J. L. WEBB, Special Field Agent, Forest Insect Investigations. III. ADDITIONAL DATA ON THE LOCUST BORER. By A. D. HOPKINS, In Charge of Forest Insect Investigations. IV. THE SOUTHERN PINE SAWYER. By J. L. WEBB, M. S., Agent and Expert. V INSECT DEPREDATIONS IN NORTH AMERICAN FORESTS AND PRACTICALMETHODS OF PREVENTION AND CONTROL. By A. D. HOPKINS, Ph. D., In Charge of Forest Insect WASHINGTON: POVKKNMKNT PRINTING OFFICE 1910. B UREA U OF ENTOMOLOGY. L. O. Howard, Entomologist and Chief of Bureau. C. L. Marlatt, Assistant Entomologist and Acting Chief in Absence of Chief. R. S. Clifton, W. F. Tastet, Chief Clerk. F. H. Chittenden, in charge of truck crop and stored product insect investigations. A. D. Hopkins, in charge of forest insect investigations. W. D. Hunter, in charge of southern field crop insect investigations. F. M. Webster, in charge of cereal and forage insect investigations. A. L. Quaintance, in charge of deciduous fruit insect investigations. E. F. Phillips, in charge of bee culture. D. M. Rogers, in charge of preventing spread of moths, field work. Rolla P. Currie, in charge of editorial work. Mabel Colcord, librarian. Forest Insect Investigations. A. D. Hopkins, in charge. H. E. Burke, J. L. Webb, Josef Brunner, S. A. Rohwer, T. E. Snyder, W. N. Dovener,^ W. D. Edmonston, agents and B. Turner, special
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