. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. 36 CLASS ARACHNIDA pay a rather exorl)itant price for a few simple chemicals, and further, in case of the arsenical dips, that he may not know the ingredients or their proportions and thereby endan- ger tlie animals treated. The Itch Mite.—The itch mite, or "itch insect," afl'ecting man is perhaps becoming a rather rare pest in civilized communities, but since it occurs at times on domestic animals, and in certain varieties becomes at times a serious pest to such a
. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. 36 CLASS ARACHNIDA pay a rather exorl)itant price for a few simple chemicals, and further, in case of the arsenical dips, that he may not know the ingredients or their proportions and thereby endan- ger tlie animals treated. The Itch Mite.—The itch mite, or "itch insect," afl'ecting man is perhaps becoming a rather rare pest in civilized communities, but since it occurs at times on domestic animals, and in certain varieties becomes at times a serious pest to such animals, it deserves mention here. Authors. Fig. 16.—Sarcoptes scabiei: male and female. (Reduced from Furstenberg, after Murray.) have differed greatly in their treatment of the species, some making a different species for each host animal, believing that they could find distinctive characters in the size, arrangement of spines, etc.; but recent authors have com- bined most of these under the one species, scabiei, though in some cases retaining the varietal distinction for various hosts. All stages of the parasite occur on the host upon which. 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 Osborn, Herbert, 1856-1954. Philadelphia ; New York : Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectb, booksubjectinsects
