Pacific Southwest

Title: Avoid planting Scotch pine near dwarf mistletoe-infected California pines

Author: Scharpf, Robert F.; McCain, Arthur H.

Date: 1988

Source: Res. Note PSW-RN-400. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest and Range Experiment Station. 2 p

Station ID: RN-PSW-400

Description: Eight-year-old Scotch pine (Pinus sylvestris) were severely infected by dwarf mistletoe (Arceuthobium occidentale) when planted near infected Digger pine (P. sabiniana) in the foothills of the northern Sierra Nevada, in California. But 6-year-old knobcone x Monterey (P. attenuata x P. radiata) hybrid pines in the same plantation were unifected. To prevent infection, avoid planting Scotch pines near native California pines bearing dwarf mistletoe.

Keywords: dwarf mistletoe, Arceuthobium occidentale, Pinus sylvestris, P. attenuata x P. radiata, Christmas tees

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Citation

Scharpf, Robert F.; McCain, Arthur H.  1988.  Avoid planting Scotch pine near dwarf mistletoe-infected California pines.   Res. Note PSW-RN-400. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest and Range Experiment Station. 2 p.