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Mistletoe. By Paige Heilman. Common Information. 1300 species. The Dwarf Mistletoe ( Arceuthobium pusillum ). The American Mistletoe. Hemi-parasites. Yellowish, white. “Dung on a twig”. Life Cycle. Symptoms. Branch swelling. Upper tree leaf loss. Witch’s brooms. Effects.
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Mistletoe By Paige Heilman
Common Information 1300 species The Dwarf Mistletoe (Arceuthobiumpusillum) The American Mistletoe Hemi-parasites Yellowish, white “Dung on a twig”
Symptoms Branch swelling Upper tree leaf loss Witch’s brooms
Effects Top kill of trees Stunt in growth Death of trees Distortions of limbs
Prevention Pruning and removing trees Ethephon Clear cut
Ponderosa Pine Dwarf Mistletoe Arceuthobiumcamylopodum Ponderosa pines and Lodgepole pines Fan-like branches Shoot height 3-8 cm Western Region
Lodgepole Pine Dwarf Mistletoe Arceuthobiumamericanum Lodgepolepine, ponderosa pine, whitebarkpine Shoot height 5-9 cm Montana, Colorado, and Wyoming Whorl-like branching
Douglas Fir Dwarf Mistletoe Arceuthobiumdouglasii Douglas fir and Douglas white fir Shoot height 2 cm Fan-like branching Western region
Limber Pine Dwarf Mistletoe Arceuthobiumcyanocarpum Limber pine, lodgepole pine, ponderosa pine, southwestern white pine Fan-like branching Shoot height 3 cm Western except Washington
Hemlock dwarf mistletoe Arceuthobiumtsugense Western hemlock Fan-like branching Oregon, Washington, and north Californina Shoot height 3 cm
Works Cited Puckett, Catherine. "Not Just for Kissing: Mistletoe and Birds, Bees, and Other Beasts." U.S. Geological Survey. USGS. October, 2 2009. Web. 26 Nov 2012. <http://www.usgs.gov/newsroom/special/mistletoe/default.asp> Hennon, Paul. "Hemlock Dwarf Mistletoe." U.S Forest Service. U. S. Department of Agriculture, n.d. Web. 26 Nov 2012. <http://www.fs.usda.gov/detail/r10/communityforests/?cid=fsbdev2_038350>
Works Cited Continued Koski, R.D. "Mistletoes in Colorado Conifers." Colorado State University Extension. N.p., 3 2012. Web. 26 Nov 2012. <http://www.ext.colostate.edu/pubs/garden/02925.html>.