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10-percent DDT powder 10-percent powder Heavy 5-percent DDT oil 5-percent DDT solution 5-percent solution Heavy 5-percent solution Light American dog tick applying DDT attics baseboards bedbugs BLACK FLIES Book lice cabinets carpet beetles Clothes moths Cluster flies cracks and crevices DDT dust DDT kills DDT oil solution DDT residual door screens enter houses feed fever fleas floors FRUIT FLIES gnats hand dust gun hornets household pests infested insecticides kill insects killing house flies larvae looking for food mixtures mosquitoes nests numbers pantry pests Pay particular attention percent of DDT pets poison crystals porches powder or concentrated psocids Pyrethrum residual spray Residual treatments Roaches hide rooms sand flies second treatment SILVERFISH AND BOOK small hand dust solu solution or 10-percent Spray 5-percent DDT spray a 5-percent Sprays Space sprays table powder teaspoonful of 10-percent tion treat such places treated surfaces typhus wasps water spray weeks wettable DDT powder window and door