by Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry in Missoula, MT .
Written in English
Residual Douglas-fir left after harvesting are dwarf mistletoe infected and pose a threat" to regeneration in some units. Removal of residuals, coupled with planned or completed site preparation and thinnings, will effectively reduce dwarf mistletoe incidence and increase future volume yields. The benefit/cost ratio based on timber values alone is <0.01/1 at 10 percent and 0.14/1 at 6 percent. Elimination of dwarf mistletoe infection for several rotations outweighs the economic benefits for the first rotation. Value added to the economy cannot be used in benefit/cost calculations, but will be a substantial sum. Control is recommended.
|Statement||by Oscar J. Dooling.|
|Series||Forest insect & disease management, Report - Forest Service, Northern Region, Forest Insect and Disease Management -- no. 79-17., Report (United States. Forest Service. Northern Region) -- no. 79-17.|
|Contributions||United States. Forest Service. Northern Region. State & Private Forestry.|
|The Physical Object|
|Pagination|| p. :|