. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN OF THE No. 78. Contribution from the Bureau of Entomology, L. O. Howard, Chief. May 18, 1914. (PROFESSIONAL PAPER.) THE SO-CALLED TOBACCO WIREWORM IN VIRGINIA. By G. A. Runner, Entomological Assistant, Southern Field Crop Insect Investigations. INTRODUCTION. For the study of insects injurious to tobacco the Bureau of Ento- mology during the last four summers has maintained a temporary field station at Appomattox, Va. Work of this station has been under the direction of Mr. W. D. Hunter, in Charge of Southern F
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN OF THE No. 78. Contribution from the Bureau of Entomology, L. O. Howard, Chief. May 18, 1914. (PROFESSIONAL PAPER.) THE SO-CALLED TOBACCO WIREWORM IN VIRGINIA. By G. A. Runner, Entomological Assistant, Southern Field Crop Insect Investigations. INTRODUCTION. For the study of insects injurious to tobacco the Bureau of Ento- mology during the last four summers has maintained a temporary field station at Appomattox, Va. Work of this station has been under the direction of Mr. W. D. Hunter, in Charge of Southern Field Crop Insect Investigations, and more immediately under the supervision of Mr. A. C. Morgan. Laboratory quarters were fur- nished by the Tenth Congressional District Agricultural School. The results of investigations of the tobacco Crambus (Crambus cali- ginosellus Clem.) are given in this bulletin. The work in Virginia was in cooperation with the State experiment station and the Bureau of Plant Industry of the U. S. Department of Agriculture. Through an agreement with the cooperators, the Bureau of Entomology was furnished all data pertaining to the rota- tion of crops grown in connection with tobacco, and the plats of the several tobacco stations in the State were placed at the disposal of the agent in charge, for inspection and experiment. The records of these stations, extending over a series of years, are of great value in determining the crop rotations and cultural methods of control best adapted to the special conditions to be dealt with in different tobacco sections. The experimental work with tobacco in Appomattox County, Va., was begun by the Bureau of Soils in 1904. The work has since been conducted cooperatively by the Bureau of Plant Industry and the Virginia experiment station. Since the first, owing to the work of i Throughout the tobacco-growing sections of Maryland, North Carolina, and Virginia the larvae of the tobacco Crambus are generally known as "
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