i into 
Holes 
flight 
n made 
acy of 
ntil a 
id not 
system 
IR low 
improve 
in 
id-truth 
in the 
f this 
0 date 
stress, 
location 
  
d = 
BIBLIOGRAPHY 
Ciesla, W. M. 
1977. Color vs. color IR for forest insect surveys. Proc. 6th Bien. 
Wkshp., Ft. Collins, CO. pp. 31-42. 
Colwell, R. N. 
1960. Manual of remote sensing. Amer. Soc. Photogram. 367 p. 
Gausman, H. W. 
1975. Leaf reflectance of near-infrared. Photogram. Eng. 40:183-191. 
Fleming, J. 
1978. Exploiting the variability of Aerochrome Infrared film. 
Photogram. Eng.  44:601-606. 
Fritz, N. L. 
1967. Optimum methods for using infrared sensitive color films. 
Photogram. Eng.  33:1128-1138. 
Fritz, N.L. 
1977. Filters: An aid in color-infrared photography. Photogram. 
Eng. 43:61-72. 
Murtha, P. A. 
1972. A guide to air photos interpretation of forest damage in Canada. 
Can. For. Serv. Public. No. 1292. 63pp. 
Wear, J. F., R. B. Pope, and P. W. Orr 
1966. Aerial photographic techniques for estimating damage by insects 
in western forests. USDA, For. Serv., PNW For. and Range Exp. Sta., 
Portland, OR 79 pp. 
JUNE 1978