. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 20 BULLETIN" 260, U. S. DEPARTMENT OF AGRICULTURE. additional irritant which makes sleep impossible. Equally as im- portant as the annoyance is the fact that fleas of all sorts are under suspicion at present as possible carriers of bacteria, parasites, and diseases of various sorts. We know that the dog flea and the human flea, as well as the rat flea, are capable of transmitting bubonic plague to man; that the dog flea, as already noted, transmits the tapeworm Dipylidium cardnum to man; and we are warranted in su
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 20 BULLETIN" 260, U. S. DEPARTMENT OF AGRICULTURE. additional irritant which makes sleep impossible. Equally as im- portant as the annoyance is the fact that fleas of all sorts are under suspicion at present as possible carriers of bacteria, parasites, and diseases of various sorts. We know that the dog flea and the human flea, as well as the rat flea, are capable of transmitting bubonic plague to man; that the dog flea, as already noted, transmits the tapeworm Dipylidium cardnum to man; and we are warranted in suspecting that additional study will add other counts to this indict- ment against fleas. In the meantime our actual knowledge and strong suspicion are ample grounds for avoiding fleas and the flea-bearing. Fig. 12.—Dog flea (Ctenocephalus canis) : a, Egg; b, larva in cocoon; c, pupa; d, adult; e, mouth-parts of same from side ; /, antenna ; g, labium from below. 6, o. d, Much enlarged; a, e, f, g, more enlarged. (From Howard, Bureau of Entomology.) dog. It is comparatively easy to avoid annoyance from fleas in the absence of dogs or cats around a dwelling. Where dogs and cats are present it is more difficult and the animals must be closely watched and given appropriate treatment from time to time. For adequate protection it is essential that stray dogs and dogs belonging in the neighborhood should be prevented from becoming habitual visitors and utilizing the porch and hammock as sleeping quarters. The chicken flea {Echidnophaga gallinacea), a common pest in some of the Southern States, frequently infests dogs. Here, again, the remedies lie in the proper handling of dogs by their owners and the elimination of ownerless dogs or dogs whose irresponsible owners. 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
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