Stark, R. W., and R. L. Dalleske. 1970. Section 2. The establishment of ground controls and evaluation of ground sampling techniques. Pages 6-7 in R. W. Stark and D. L. Dahlsten (eds.), Studies on the population dynamics of the western pine beetle, Dendroctonus brevicomis LeConte (Coleoptera: Scolytidae). University of California, Division of Agricultural Sciences, Berkeley. 174 p.