Ala. 
Conn. 
Conn. 
Ze 
D. Forest, Forest Products and Shade Tree Insects 
Biology and Control of Certain Insect Pests of Forests 
in Alabama. (1) Study and evaluate damage caused by more impor- 
tant forest insects in State. (2) Study certain phases of life 
histories and habits of important bark beetles and of pests of 
nurseries and seedlings. (3) Learn most practical method of 
controlling major insect pests of forest nurseries and estab—- 
lished stands of seedlings. 
Zool.e, Ent. 111 (S-36) Coop. FS 
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 establishment, 
development, composition, and growth of forest stands and yield 
of products; (2) improve tree quality and rate of growth by select- 
ing and developing superior seed sources; (3) develop improved 
methods of forest protection against fire, disease and insect 
attacks; and (4) evaluate economic aspects and applying accepted 
and new forest practices. 
For. 411 
The Establishment, Growth and Yield of Forest Plantations 
in Alabama. To determine effect of certain site factors, especi- 
ally soil, on the establishment, growth and yield of commercial 
tree species already planted and to develop specifications and 
instructions for planting such species under the site conditions 
existing in the State. Prevalence of insect damage will be 
included. 
For. 509 
Larval Migration and Defoliation by the sy Moth. Learn 
critical environmental factors affecting gypsy moth larval migra- 
tions and how these migrations are related to differences in 
defoliation damage of resistant and susceptible forest sites. 
Ent. 314 
The Control of Vectors of Dutch Elm Disease. Improve effici- 
ency 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. 
Fnt., Pl. Path. 317 
