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Dwarf mistletoe control, why and what : an appraisal of the Northern Region control program Public Deposited

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Dwarf mistletoes exert an impact on forest productivity, but this impact can be reduced through management practices. Even infested stands can yield considerable volumes if proper control methods are used. Projections of future yield increases due to control efforts are made. Cost of treatment in fiscal year 1973 was $51 per acre in Douglas-fir and western larch and $19 per acre in lodgepole pine. The benefit:cost ratio of control is 3.25:1 in Douglas-fir and western larch and 2.42:1 in lodgepole pine. These benefit:cost ratios are based on primary resource values alone, and do not include value added to the economy in wages and social benefits. Control was accomplished on nearly 9,000 acres in fiscal year 1973; Insect and Disease Control funds accounted for about one-half the expenditures. The control program should be continued. Steps for the land manager to take for program continuation are recommended.

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