mistletoe by paige heilman. common information 1300 species the dwarf mistletoe (arceuthobium...
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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 lossWitch’s brooms
Effects
Top kill of trees
Stunt in growth
Death of treesDistortions of limbs
Prevention
Pruning and removing trees
Ethephon
Clear cut
Ponderosa Pine Dwarf Mistletoe
Arceuthobium camylopodum
Western Region
Ponderosa pines and Lodgepole pines
Shoot height 3-8 cm
Fan-like branches
Lodgepole Pine Dwarf Mistletoe
Arceuthobium americanum
Lodgepole pine, ponderosa pine, whitebark pine
Shoot height 5-9 cm
Whorl-like branching
Montana, Colorado, and Wyoming
Douglas Fir Dwarf MistletoeArceuthobium douglasii
Douglas fir and Douglas white fir
Shoot height 2 cm
Fan-like branching
Western region
Limber Pine Dwarf MistletoeArceuthobium cyanocarpum
Limber pine, lodgepole pine, ponderosa pine, southwestern white pine
Shoot height 3 cm
Fan-like branching
Western except Washington
Hemlock dwarf mistletoeArceuthobium tsugense
Western hemlock
Oregon, Washington, and north Californina
Shoot height 3 cm
Fan-like branching
Works CitedPuckett, 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>.