. The chinch bug. (Blissus leucopterus Say.). Chinch-bugs; Insect pests Control. 'nOL .1/3 £' fi C tt J Jr NOV - 1909 <v 1 t A K. Y Circular No. 11 3. Issued November 13, 1909. United States Department of Agriculture, BUREAU OF ENTOMOLOGY, L. O. HOWARD, Entomologist and Chief of Bureau. THE CHINCH BUG. (Blissus leucopterus Say.) By F. M. Webster, In Charge of Cereal and Forage Insect Investigations. INTRODUCTION. Few insects, and certainly no other species of the natural order to which this one belongs, have caused such enormous pecuniary losses as has the chinch bug (Blissus leucopterus Sa
. The chinch bug. (Blissus leucopterus Say.). Chinch-bugs; Insect pests Control. 'nOL .1/3 £' fi C tt J Jr NOV - 1909 <v 1 t A K. Y Circular No. 11 3. Issued November 13, 1909. United States Department of Agriculture, BUREAU OF ENTOMOLOGY, L. O. HOWARD, Entomologist and Chief of Bureau. THE CHINCH BUG. (Blissus leucopterus Say.) By F. M. Webster, In Charge of Cereal and Forage Insect Investigations. INTRODUCTION. Few insects, and certainly no other species of the natural order to which this one belongs, have caused such enormous pecuniary losses as has the chinch bug (Blissus leucopterus Say) (fig. 1). No other insect native to the Western Hemisphere has spread its devastat- ing hordes over a wider area of country (see map, fig. 7) with more fatal effects to the staple grains of North America than has this one. But for the extreme susceptibility of the very young to destruction by drenching rains and to the less, though not insignificant, fatal effect during rainy seasons of the para- sitic fungus SporotricJium globuliferum Speg., on both the adults and young, the practice of raising grain year after year on the same areas, as is followed in some parts of the United States, would become altogether un- profitable. Some of this insect's own habits, emphasizing as they do the effects of meteorological conditions, are among the most potent influences that serve to hold it within bounds by giving its tendency to excessive increase a decidedly spasmodic character. 9917—Cir. 113—09 1. Fig. 1.—Chinch bug (Blissus leu- copterus): Adult of long-winged form, much enlarged. (Author's illustration.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Webster, F. M. (Francis Marion), 1849-1916; United States. Bureau of Entomology; United States. Dept. of Agriculture. Washington, D. C. : U. S. Dept. of A
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