. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 374 FESTS OF DOMESTIC AXIMALS The Screw-worm (Chrysomyia macellaria Fab.) Exposed wounds or even the bites of ticks form the breeding ground of the whitish maggots of this species. Eggs are laid in large numbers in such places by the adult fly, and the young burrow in the surrounding tissues, later enter- ing the ground to transform. There maj- be several genera- tions annually'. Prompt treatment of chance wounds, and dipping to kiU or prevent ticks, are the best measures to adopt. In the treatment of wounds
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 374 FESTS OF DOMESTIC AXIMALS The Screw-worm (Chrysomyia macellaria Fab.) Exposed wounds or even the bites of ticks form the breeding ground of the whitish maggots of this species. Eggs are laid in large numbers in such places by the adult fly, and the young burrow in the surrounding tissues, later enter- ing the ground to transform. There maj- be several genera- tions annually'. Prompt treatment of chance wounds, and dipping to kiU or prevent ticks, are the best measures to adopt. In the treatment of wounds a solution. Fig. 599. — The Screw-worm Fly. En- larged and natural size. Original. of carbohc acid, 1 part, water, 30 parts, is excellent, followed by a dressing of pine tar. Sucking Lice on Domestic Animals The larger animals, including cattle, horses, swine, and others, are often infested with sucking hce, which frequently cause great irritation. Several species are common. The Short-nosed Ox Louse {Hwmato- pinus Xitzsch) is slaty in color, one eighth to one fifth of an inch long and about half as broad. Usually it is most troublesome on the neck and shoulders. The Long-nosed Ox Louse {Hirmatopinus vituli Linn.) is slender, one eighth of an inch long. Its head is distinctly elongated. The Hog Louse {Hamatopinus urius Xitzsch) is gray, one fourth of an inch long, the body broadly elliptical, the v] T->'i^ Fig. 600. — The Short-nosed head narrow. Badlv infested pies fail to ,-, , t- , j j "^ ° Ux Louse. Enlarged and make proper gains in weight. natural size. 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
