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Publication Information

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Title: Western dwarf mistletoe infects understory Jeffrey pine seedlings on Cleveland National Forest, California

Author: Scharpf, Robert F.; Vogler, Detlev

Date: 1986

Source: Res. Note PSW-RN-386. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 2 p

Publication Series: Research Note (RN)

Description: Many young, understory Jeffrey pines (Pinus jeffreyi Grev. & Balf.) were found to be infected by western dwarf mistletoe (Arceuthobium campylopodum Engelm.) on Laguna Mountain, Cleveland National Forest, in southern California. Under heavily infected overstory, about three-fourths of the young pines (about 15 years old on the average) were infected by dwarf mistletoe. Infections per tree averaged about two and a half, two-thirds of these on the bole. Attempts to regenerate Jeffrey pine under an infected overstory in southern California will probably lead to a severely infected and damaged understory. Planting nonhost species or resistant selections of Jeffrey pine would be practical in managing dwarf mistletoe on these highly valuable forest recreational areas.

Keywords: Arceuthobium campylopodum dwarf mistletoe, forest diseases, Jeffrey pine, mistletoes–host resistance, Pinus jeffreyi–injury by mistletoe, reproduction, understory vegetation

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
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Citation:


Scharpf, Robert F.; Vogler, Detlev 1986. Western dwarf mistletoe infects understory Jeffrey pine seedlings on Cleveland National Forest, California. Res. Note PSW-RN-386. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 2 p

 


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