United States Department of Agriculture
Presents the biology and ecology of the pine root collar weevil, and provides survey techniques and management strategies for its identification and control.
A report on a 1978 survey of private forest-land owners, based on 11,076 questionnaires. About 7.8 million ownership units hold 333 million acres of privately owned forest land in the United States. Regional and subregional breakdowns are included for such important variables as form of ownership; owner's occupation, age, sex, race, residence, and education; size...
The 1974 Servicewide Silviculture Work Conference was held in Sacramento, California, on October 21-25, 1974. The objectives were to discuss tree improvement and fertilizer programs.