. A civic biology : presented in problems. Biology; Sanitation. THE ECONOMIC IMPORTANCE OF ANIMALS 225. season, will all play a part in the reduction of flies. To the motto " swat the fly " should be added, "remove their breeding places!' Other Insect Disease Carriers. - - Fleas and bedbugs have been recently added to those insects proven to carry disease to man. Bubonic plague, which is primarily a disease of rats, is un- doubtedly transmitted from the infected rats to man by the fleas. Fleas are also believed to transmit leprosy although this is not proven. To rid a house of f
. A civic biology : presented in problems. Biology; Sanitation. THE ECONOMIC IMPORTANCE OF ANIMALS 225. season, will all play a part in the reduction of flies. To the motto " swat the fly " should be added, "remove their breeding places!' Other Insect Disease Carriers. - - Fleas and bedbugs have been recently added to those insects proven to carry disease to man. Bubonic plague, which is primarily a disease of rats, is un- doubtedly transmitted from the infected rats to man by the fleas. Fleas are also believed to transmit leprosy although this is not proven. To rid a house of fleas we must first find their breeding places. Old carpets, the sleeping places of cats or dogs or any dirty un- swept corner may hold the eggs of the flea. The young breed in cracks and crevices, feeding upon organic matter there. Eventually they come to live as adults on their warm-blooded hosts, cats, dogs, or man. Evidently destruction of the breeding places, careful washing of all in- fected areas, the use of benzine or gasoline Flea which transmits Bu- in crevices where the larva? may be hid are ^onic plague from rat J to man. the most effective methods of extermina- tion. Pets which might harbor fleas should be washed frequently with a weak (two to three per cent) solution of creolin. Bedbugs are difficult to prove as an agent in the transmission of disease but their disgusting habits are sufficient reason for their extermination. It has been proven by experiment that they may spread typhoid and relapsing fevers. They prefer human blood to other food and have come to live in bedrooms and beds because this food can be obtained there. They are extremely difficult to exterminate because their flat body allows them to hide in cracks out of sight. Wooden beds are thus better protection for them than iron or brass beds. Boiling water poured over the cracks when they breed or a mixture of strong corrosive sublimate four parts, alcohol four parts and spirits of turpentine one pa
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