HOUSE FLY OR TYPHOID FLY 



303 



Control. It is evident from the above that all breeding places 

 and all accumulations of filth should be removed at least once a 

 week. Manure piles should not be allowed to accumulate behind 

 livery stables or private barns. Prompt disposal of garbage should 

 be regulated by law, and communities should be instructed as to 

 the dangers arising from toleration of the house-fly, and in methods 

 leading to relief. Trapping flies is only a minor method of treat- 

 ment. Energy should be bent more particularly upon cleaning up 



FIG. 311. The house fly: a, adult male; b, proboscis and pulp of same; c, terminal 



iracle. 



joints of antennae; d, head of female; e, puparum; /, anterior spi 

 (After L. O. Howard, U. S. Bu. Ent.) 



All much enlarged. 



the neighborhood. Where imperative, sticky fly-paper is more 

 advisable than poison fly-paper. Flies may be poisoned by placing 

 in likely places shallow plates containing a solution made by pour- 

 ing three teaspoonfuls of formalin into a half-pint of water to 

 which one-half pint of milk has been added. Houses and porches 

 should be screened in the summer. For very evident reasons, a 

 house should not be located near a stable. The use of house toilets 

 with sewage connection or cesspools is evidently much more 

 desirable than conveniences frequently prevailing in the country. 

 The open privy is a menace in connection with the house-fly. 



