. Economic guides for ponderosa pine dwarfmistletoe control in young stands of the Pacific Northwest. Ponderosa pine Diseases and pests Control Northwest, Pacific; Arceuthobium Control Northwest, Pacific. are 1961-62 thinning and pruning costs per acre on the study areas. Costs are exclusive of initial reconnaissance, travel on "company time," vehicle expense, operation of camps, slash reduction, and follow up removal of incipient infections. COST OF PRUNING-FELLING CONTROL WITHOUT PRECOMMERCIAL THINNING The Deschutes National Forest time- study data were used to estimate the cost of
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. Economic guides for ponderosa pine dwarfmistletoe control in young stands of the Pacific Northwest. Ponderosa pine Diseases and pests Control Northwest, Pacific; Arceuthobium Control Northwest, Pacific. are 1961-62 thinning and pruning costs per acre on the study areas. Costs are exclusive of initial reconnaissance, travel on "company time, " vehicle expense, operation of camps, slash reduction, and follow up removal of incipient infections. COST OF PRUNING-FELLING CONTROL WITHOUT PRECOMMERCIAL THINNING The Deschutes National Forest time- study data were used to estimate the cost of dwarf mistletoe felling and pruning w^ithout silvicultural thinning. Pruning time and cost per acre are the same as in figure 5. Man-hours required and cost per acre for the felling portion of control are given in figure 6. Average D.b.h.-l Inch ^ 2 -. $40 20 Average D.b.h.-3 Inches 10 - 6 4 - ' Felling Cost per Acre $80;. 60. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Flora, Donald F. Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U. S. Dept. of Agriculture