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Wildland Fires and Dwarf Mistletoes
Wildfires play a multiple role in the distribution of dwarf mistletoes - they may either inhibit or encourage these parasites depending primarily on the size and intensity of the burn. Many reports suggest that fire exclusion policies of the past half century have resulted in increased dwarf mistletoe levels as, well as increased fire behavior potential. Prescribed burning as a supplemental method of dwarf mistletoe control has been little used, but seems to be applicable in some forest types and stand conditions both to eliminate infected residuals in cutover areas and to eliminate heavily infested unmerchantable stands. Suggested areas of research relating to fire ecology and prescribed burning are given.
Dwarf Mistletoes
Contents: generalized life cycle; sexual reproductive biology; mechanism and trends of evolution; biogeography and paleogeographic history; host relationships; ecological relationships; biotic associates; host-parasite physiology; anatomy of the dwarf mistletoe shoot system; endophytic system; pathogenic effects; control; systematics: philosophy, problems, and criteria for classification; molecular systematics; formal taxonomy. Extensive bibliography. Scientific and common names; collecting and curating techniques; herbaria consulted; specimens examined; glossary; subject and species indexes.
Dwarf Mistletoes
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Taxonomy and Effects of Dwarf Mistletoe on Bristlecone Pine on the San Francisco Peaks, Arizona
Abstract: The dwarf mistletoe parasitizing bristlecone pine on the San Francisco Peaks, Arizona is shown to be Arceuthobium microcarpum, instead of A. cyanocarpum as reported previously. The dwarf mistletoe causes serious localized damage, but it is not considered to be a serious threat to the bristlecone pine population.
