. The animans and man; an elementary textbook of zoology and human physiology. FIG. 93. Foot of house-fly showing claws, hairs, pulvilli and the minuteclinging hairs on the pulvilli. (Photograph by R. W. Doane.) different stages, egg, larva, and pupa, varies with tempera-ture and other conditions. All manure should be removedfrom barnyards at least once a week and spread out to flies cannot breed in dry manure. If the manurecannot be removed and spread out it should be kept in a fly-tight bin. Outdoor privy vaults and cesspools must beattended to. Cesspools should be kept covered and a
. The animans and man; an elementary textbook of zoology and human physiology. FIG. 93. Foot of house-fly showing claws, hairs, pulvilli and the minuteclinging hairs on the pulvilli. (Photograph by R. W. Doane.) different stages, egg, larva, and pupa, varies with tempera-ture and other conditions. All manure should be removedfrom barnyards at least once a week and spread out to flies cannot breed in dry manure. If the manurecannot be removed and spread out it should be kept in a fly-tight bin. Outdoor privy vaults and cesspools must beattended to. Cesspools should be kept covered and all pitprivies replaced by dry-earth closets. Finally garbagecans and rubbish heaps should be cared for. Of course, FIGHTING INSECT PESTS 189 any room or house can be kept free from flies, or nearly so,by screens; but neighborhood and community effort towardabolishing the breeding places is by far the most effectivemeans of righting the deadly housefly. To fight mosquitoes the same advice applies; destroy thebreeding places. Mosquitoes breed in puddles and ponds;. FIG. 94. Eggs, larvae and pupae of mosquitoes. Theobaldia incident.(Photograph by R. W. Doane.) in open barrels and tins of water; in marshes and lily-ponds;in fresh or slightly salt water anywhere that is not mostly do not fly far; if the pests are abundantin or about a house look for a near-by breeding place. Ifthis is a small puddle or pond that cannot be readily drainedpour kerosene on its surface. The oil will spread out forminga thin coating over the water that will prove fatal to wingedmosquitoes coming to lay their eggs, and to larvae (wrigglers)coming up to the surface to breathe, as well as to the pupae i go THE ANIMALS AND MAN that normally float on the surface and to the adults tryingto issue from the pupal shells. About one pint of kerosenewill effectively cover fifteen square feet of water. Old cansor pails or casks in which rainwater collects should be re-moved; garden water taps shoul
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Keywords: ., bookcentury1900, bookd, booksubjectphysiology, booksubjectzoology
