The unthinned areas illustrate some adverse effects of overstocking. We conclude 

 that the fertilizer treatment prior to thinning has compounded these adverse effects. 

 We recommend that future applications of fertilizer be made after, not prior to, thin- 

 ning. This will ensure that increased growth will be concentrated on those stems 

 selected for future crop trees. 



Establishment of nurseries in southeast Alaska for production of western hemlock 

 planting stock would be a high risk adventure. Sivooocous strobilinus is capable of 

 causing severe losses in nurseries because the environment usually favors development 

 of disease. If western hemlock planting stock is needed, we would recommend production 

 by containerized methods in greenhouses. A subirrigating system, a forced-air ventila- 

 tion system, and a supplemental lighting system would be required to maintain a 

 relatively blight-free environment. 



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Baker, B. H. , and D. J. Curtis. 



1973. Forest insect and disease conditions in Alaska- -1972 . USDA For. Serv., Alaska 

 Reg., Div. , Timber Manage., 9 p. 



Baker, B. H. , and T. H. Laurent. 



1974. Forest insect and disease conditions in Alaska in 1973. USDA For. Serv., 

 Alaska Reg., Div. Timber Manage., 10 p. 



Baker, B. H. , B. B. Hostetler, and T. H. Laurent. 



1975. Forest insect and disease conditions in Alaska, 1974. USDA For. Serv., Alaska 

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Crosby, D. , and D. J. Curtis. 



1968. Forest insect and disease conditions in Alaska during 1968. USDA For. Serv., 

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 Crosby, D. , and D. J. Curtis. 



1970. Forest insect and disease conditions in Alaska during 1969. USDA For. Serv. , 

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 Curtis, D. J., and C. W. Swanson. 



1972. Forest insect and disease conditions in Alaska during 1971. USDA For. Serv., 

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 Funk, A. 



1972. Sivocoocus shoot-blight of western hemlock in British Columbia and Alaska. 

 Plant Dis. Rep. 56:645-647. 

 Graves, A. II. 



1914. Notes on diseases in the southern Appalachians. Phytopathology 4:63-72. 

 Hostetler, B. B. , P. A. Rush, and T. H. Laurent. 



1976. Forest insect and disease conditions in Alaska, 1974. USDA For. Serv., Alaska 

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Kujala, V. 



1950. Uber die Kleinpilze der Koniferen in Finland. Commun . Inst. For. Tenn. 



38:62-63. 

 Lagerberg, T. 



1933. Asooohyta parasitica (Hartig) en skadesvamp pa granplantor. Svenska Skogs- 

 vardsforen Tidskr. 30:1-10. 



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