. An annotated list of the important North American forest insects. Forest insects. Farmers' Bulletin U72 PREVENTING AND REMEDYING DAMAGE TO WOODWORK OF BUILDINGS DESTRUCTION OF BREEDING PLACES ABOUT THE BUILDING SITE. Fig. 5.—Tube of coarse yarn from l)ali' of eottim on floor of building infested by subterranean termites, Green- ville, S. C. If buildings are to be constructed on recently cleared woodland, decaying logs and stumps should be removed from the soil in the vicinity and burned. If, because of the presence of decaying wood and humus, the sub- terranean termites are numerous in the e
. An annotated list of the important North American forest insects. Forest insects. Farmers' Bulletin U72 PREVENTING AND REMEDYING DAMAGE TO WOODWORK OF BUILDINGS DESTRUCTION OF BREEDING PLACES ABOUT THE BUILDING SITE. Fig. 5.—Tube of coarse yarn from l)ali' of eottim on floor of building infested by subterranean termites, Green- ville, S. C. If buildings are to be constructed on recently cleared woodland, decaying logs and stumps should be removed from the soil in the vicinity and burned. If, because of the presence of decaying wood and humus, the sub- terranean termites are numerous in the earth, the soil should be deeply p 1 o av e d or otherwise broken up and t r e a t e d with chemicals to kill the insects. Effective poisons for this purpose are sodium cyanide; ^ a 10 per cent solution of sodium arsenite;'^ kerosene oil; 1 part coal - tar creosote and 3 parts kero- sene oil (this mixture should be strained through burlap before use) ; carbon-disulphide emulsion, w^hich is on the market ready for use; orthodichlorobenzene; lye; or other contact poisons or gases. Live steam forced into the soil will serve the same purpose as the gases. Decaying fence posts, sidewalks, etc., should be removed and re- placed with treated wood, concrete, stone, or other resistant substances; such de- caying material w^ould facilitate the formation or perpetu- ation of the termite colonies. PROPER CONSTRUCTION OF BUILDINGS Termites will in- fest not only old buildings but also im- properly constructed new buildings, and these are often badly infested. It is not the age of the building but the manner in which it has been constructed that renders it liable to attack. Insulation.—Complete insulation from the ground of all untreated woodwork of buildings is the only effective permanent remedy 3 For each acre to be treated, dissolve ICO pounds of granular sodium cyanide in 12,000 gallons of water. " This poison is caustic and should not be used near living Please not
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