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DISEASES OF FOREST AND SHADE TREES 



Ala. Effect of Various Forest Situations and Practices on 



the Growth and Value of Forest Products and Returns from Forest 

 Lands in Alabama . To (1) investigate factors that affect estab- 

 lishment, development, composition, and growth of forest stands 

 and yield of products; (2) improve tree duality and rate of growth 

 by selecting and developing superior seed sources; (3) develop 

 improved methods of forest protection against fire, disease and 

 insect attacks; and (A) evaluate economic aspects and application of 

 accepted and new forest practices. 

 For. 411 



Ala. The Establishment, Growth and Yield of Forest Plantations 



in Alabama . To determine effect of certain site factors, 

 especially soil, on the establishment, growth and yield of 

 commercial tree species already planted and to develop speci- 

 fications and instructions for planting such species under the 

 site conditions existing in the State. 

 For. 509 



Conn . The Control of Vectors of Dutch Elm Disease . Improve 



efficiency of control of vectors of Dutch elm disease by 

 development of more effective insecticides for application to 

 (a) trees to be protected and (b) trees breeding vectors. 

 Ent., PI. Path. 317 



Conn. Dutch Elm Disease and Its Chemotherapy , (l) Learn causes of 



dysfunction in wilt diseases; (2) search for compounds to 

 inhibit processes leading to dysfunction or kill the causal fungus; 

 (3) apply promising treatments to plants and measure their trans- 

 locatability; (4) test promising compounds for their efficacy in 

 controlling Dutch elm disease. 

 PI. Path. , Bot. 652 (NE-25) 



Del. Dieback Disease of Oak and Some Diseases of Nursery Seedlings . 



To determine the etiology, epiphytology, and control of (1) the 

 "dieback" disease of oaks; and (2) the damping-off, root rot, and 

 needle blight diseases in the conifer seedbed. 

 PI. Path. 57-P 



111. The Preservative Treatment of Wood Products for Farm and 



Home Use . A. The Preservative Treatment of Fence Posts (Northern 

 Illinois). B. The Preservative Treatment of Electric Fence 

 Stakes. C. The Preservative Treatment of Fence Posts (Southern 

 Illinois). E. Horizontal Vs. Vertical Treatment of Fence Posts. 

 N. Analyzing the Penetration of Pentachlorophenol Wood-Preserving 

 Solutions. 0. A Study of Pressure- Treated Millwork. Q. The 

 Preservative Treatment of Greenhouse Duckboards. 

 For. 55-331 



