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In western forest ecosystems of North America, numerous dwarf mistletoe species are considered to be serious forest-borne disease agents.Severe dwarf mistletoe infection can result in a reduction in tree growth, premature tree mortality, reduced seed and cone development, and reduced wood quality, and increases the susceptibility of the host tree to pathogen and/or insect attack.
Arceuthobium pusillum is a perennial, obligate parasitic plant in the sandalwood family. [1] Its common names include Dwarf mistletoe or Eastern dwarf mistletoe.It is one of the most widespread dwarf mistletoes within its range which covers the eastern United States and Canada, from Saskatchewan to Nova Scotia and New Jersey. [2]
Arceuthobium campylopodum is a species of dwarf mistletoe known as western dwarf mistletoe. It is native to the low to moderate elevation coniferous forests of western North America. It is a common parasite of several species of pine tree, including Jeffrey Pine, Ponderosa Pine, and Coulter Pine. The dwarf mistletoe is a greenish-yellow ...
The American dwarf mistletoe is a yellow-green coral-shaped structure above the surface of the tree's bark, while most of the parasite is beneath the bark. The seeds mature in late summer and disperse to nearby trees. This species has been found to explosively-disperse its seeds through thermogenesis. [1]
Most of the mistletoe is located inside the host tree, attached to it via haustoria, which tap the tree for water and nutrients. The leaves of the mistletoe are reduced to thin scales on its surface. It is dioecious, with male and female mistletoe plants producing spikes of staminate and pistillate flowers, respectively.
Mistletoe has some unique characteristics and history that go way beyond smooching under the sprigs during the holidays. 8 Surprising Facts About Mistletoe You Probably Didn't Know Skip to main ...
Arceuthobium douglasii is a species of dwarf mistletoe known as Douglas fir dwarf mistletoe. It is native to western North America from British Columbia to Texas to California, where it lives in forest and woodland as a parasite. It is found mostly on Douglas fir (Pseudotsuga menziesii) trees, but occasionally on fir (Abies spp.), as well. [2 ...
A. minutissimum infects the crowns of trees of all ages. It severely impacts the health of host-trees, and causes the loss of needles. [6] Although P. wallichiana is the primary host, it has been recorded to infect Pinus gerardiana in Pakistan. Unconfirmed reports show that it may also infect Abies pindrow and Cedrus deodara. [4]