CUTWORMS, ARMYWORMS, AND RELATED SPECIES 49 



The stubble after 1 year's crop is left undisturbed until the following 

 spring, when the ground is cultivated and kept clean throughout 

 the summer until wheat-seeding time. The spring cultivation should 

 start as early as possible without incurring danger of spring soil 

 blowing, preferably before April 15. Wheat on summer-fallow 

 ground in which insufficient moisture was stored while fallow, or which 

 supported any weed growth during the egg-laying period of the moths, 

 was subject to attack during periods of heavy general infestation. 



LITERATURE CITED 



(1) Blanchard, R. A. 



1942. HIBERNATION OF THE CORN EAR WORM IN THE CENTRAL AND 

 NORTHEASTERN PARTS OF THE UNITED STATES. U. S. Dept. 



Agr. Tech. Bui. 838, 13 pp., illus. 



(2) Chittenden, F. H. 



1903. A BRIEF ACCOUNT OF THE PRINCIPAL ENEMIES OF THE SUGAR BEET. 



U. S. Dept. Agr., Ent. Bui. 43, 71 pp., illus. 



(3) 



1912. PAPERS ON INSECTS AFFECTING VEGETABLES. IV. A LITTLE- 

 KNOWN cutworm. U. S. Dept. Agr. Bur. Ent. Bui. 109, 

 pp. 47-51, illus. 



(4) Cook, W. C. 



1923. STUDIES IN THE PHYSICAL ECOLOGY OF THE NOCTUIDAE. Minn. 



Agr. Expt. Sta. Tech. Bui. 12, 38 pp., illus. 



(5) Crumb, S. E. 



1929. tobacco cutworms. U. S. Dept. Agr. Tech. Bui. 88, 179 pp., 

 illus. 



(6) Davis, E. W., and Dorst, H. E. 



1937. NOCTUIDAE COLLECTED BY LIGHT TRAP IN CENTRAL UTAH. Utah 



Acad. Sci., Arts and Letters, Proc. 14: 179-194. 



(7) Dirks, C. O. 



1937. BIOLOGICAL STUDIES OF MAINE MOTHS BY LIGHT TRAP METHODS. 



Maine Agr Expt. Sta. Bui. 389, 162 pp., illus. 



(8) Gibson, A. 



1915. cutworms and their control. Canada Dept. Agr., Ent. Branch, 

 Bui. 10, 31 pp., illus. 



(9) Hill, C. C. 



1925. BIOLOGICAL STUDIES OF THE GREEN CLOVER WORM. U. S. Dept. 



Agr. Bui. 1336, 19 pp., illus. 



(10) Holland, W. J. 



1920. the moth book. Garden City, N. Y. 479 pp., illus. 



(11) Jones, T. H. 



1918. MISCELLANEOUS TRUCK-CROP INSECTS IN LOUISIANA. II. THE 



GRANULATED CUTWORM, AN IMPORTANT ENEMY OF VEGETABLE 



crops in Louisiana. U. S. Dept. Agr. Bui. 703, pp. 7-14, illus. 



(12) Luginbill, P. 



1928. the fall armyworm. U. S. Dept. Agr. Tech. Bui. 34, 91 pp., illus. 



(13) Marsh, H. O. 



1914. papers on insects affecting vegetable AND truck crops, ii. — 



the striped beet caterpillar. U. S. Dept. Agr. Ent. Bui. 

 127, pp. 13-18, illus. 



(14) Riley, C. V. 



1885. cabbage cutworms. In U. S. Dept. Agr. Ent. Rpt. 1884: 289- 

 298. 



(15) Sanderson, E. D. 



1906. REPORT ON MISCELLANEOUS COTTON INSECTS IN TEXAS. U. S. Dept. 



Agr. Ent. Bui. 57, pp. 7-11, illus. 



(16) Tietz, H. M. 



1936. the noctuidae of Pennsylvania. Pa. Agr. Expt. Sta. Bui. 335, 

 164 pp. 



