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. 193Sc. Siudy of a monntain pine heetle iniestalion in lodgepole pine. United States Department ol Agriculture, Bnrean ol Kutnmolngy. Coenr d'Aleiu\ Idaho. ().

. I939a. Memorandum lor lahoratory lilcs, BK: screening lodgepole pine to prevent attacks ol the monntain pine heetle 1933-38. United States Department ol Agrieiilturr. Bnrean ol Entomolog)-, Coenr dAlene. Idaho. ().

. 1939h. Progress report: spraying willi penetrating oils to contro] the monntain pine Iłeetle in lodge-pole pine. United States Deparlinent of Agriculture, Bnrean ol Entomology. Coenr d Alene, Idaho. 0-

. 1940a. Memorandum lor liles. BK: sereening lodgepole pine to prevenl monntain pine heetle attack. United States Department ol Agriculture, Bureau ol Entomology, Coenid Alene. Idaho. ().

. 19401). Spraying willi various penetrating oils in the search lor a bet ter method ol’controlling the monntain pine heetle in lodgepole pine, 1939. United States Department of Agriculture. Bnrean of Knlomology. Coenr d Alene. Idaho. ().

. 1940c. Wasatcli e.\perimenlal eon troi projeet. Suppl. Beport. United States Department ofAgn-culture, Bnrean of Entomology, Coenr d Alene, Idaho. ().

. 194la. E.\periments with penetrating sprays con-ducted in lodgepole and whitehark pine in 1940. United States Department ol Agriculture. Bnrean of Entomology, Coenr d Alene, Idaho. ().

. 1941h. Tests to determine rrpellent and eontrol effectiveness of eertain formnlae of the Dow Chemical Company, 1940. United States Department of Agricnhure, Bnrean of Entomology, Coenr d Alene, Idaho. ().

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1942.    United States Department of Agricnhure. Bureau ol Entomology. Coenr d Alene. Idaho. ().

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. 1943d. Water emulsions for penetrating sprays. United States Department of Agricnhure, Bureau of Entomology, Missoola. Montana. ().

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#

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__19S2a Management altematiws for lodgepole

pine rccreational facilities threatened by the