The principles of health control . ethrough the winter months. Because of this fact eachyear gives opportunity for a new and more successfulcampaign. Fly destruction should begin early in theseason — in March or April in most climates — and bedirected against the few survivors of the winter. Themost effective methods of fighting house flies are thefollowing: By the destruction of breeding places. While moistorganic matter (filth) of all kinds will hatch out the eggsof flies and develop the larvae (Fig. 75), the manure heapfrom stables is especially adapted to this purpose. Forthis reason s
The principles of health control . ethrough the winter months. Because of this fact eachyear gives opportunity for a new and more successfulcampaign. Fly destruction should begin early in theseason — in March or April in most climates — and bedirected against the few survivors of the winter. Themost effective methods of fighting house flies are thefollowing: By the destruction of breeding places. While moistorganic matter (filth) of all kinds will hatch out the eggsof flies and develop the larvae (Fig. 75), the manure heapfrom stables is especially adapted to this purpose. Forthis reason stable cleanliness — the removal of manureas fast as it is produced — is the most effective singlemethod of preventing flies. 2. By the general use of large outdoor fly traps. Theseshould be placed at the kitchen door, the garbage heap,the barn, and other places to which the flies are fly trap attached to the garbage can (Fig. 83) is adevice of special value in towns and cities. CONTROL THROUGH ENVIRONMENT 38i. 3. By the thorough screening of all dwellings. Thoughscreening neither destroys flies nor interferes with breed-ing, it prevents their carryinggerms to the food as it is servedupon the table. 4. By the use of small wire flyswatters. No matter how care-fully a house has been screened afew flies will get in. The flyswatter enables one to extermi-nate them as soon as they arediscovered. Destruction of Bedbugs. — In Fig. 83. —Top of Gar-certain tenement districts in cities ^P t0 ^f * at tacned a small fly trap. bedbugs are more than a nuisance; The flies enter the can they are, like the house fly, a under the loose cover and menace to health. There is good are caug,ht asL they,_ at tempt to leave through the eV1dence that typhoid fever, re- lighted opening above-lapsing fever, and other diseases Other places of entrance,may be transmitted by these in- shown in the u^tra- , , . - tion, are provided where sects, and skin infections may the trap fi
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecthygiene, bookyear1920
