Natural infection of new hosts by hemlock dwarf mistletoe

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Abstract

This note reports new hosts for hemlock dwarf mistletoe (Arceuthobium tsugense based on field observations made in Oregon and Washington in 1993. Some of these host/parasite combinations have been previously reported based on artificial inoculations as mentioned above, but this is the first report of these host/parasite combinations occurring naturally. Additional occurrences of hemlock dwarf mistletoe on rare hosts from new locations in Oregon, Washington, and Alaska are reported. A table summarizes the host susceptibility for the western hemlock and mountain hemlock dwarf mistletoe A. tsugense tsugense and A.t. mertensianae based on observations of natural infection. -from Author

Original languageEnglish (US)
JournalResearch Note - US Department of Agriculture, Forest Service
Issue numberRM-RN-530
StatePublished - Jan 1 1994
Externally publishedYes

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parasite
inoculation
infection
mountain

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

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abstract = "This note reports new hosts for hemlock dwarf mistletoe (Arceuthobium tsugense based on field observations made in Oregon and Washington in 1993. Some of these host/parasite combinations have been previously reported based on artificial inoculations as mentioned above, but this is the first report of these host/parasite combinations occurring naturally. Additional occurrences of hemlock dwarf mistletoe on rare hosts from new locations in Oregon, Washington, and Alaska are reported. A table summarizes the host susceptibility for the western hemlock and mountain hemlock dwarf mistletoe A. tsugense tsugense and A.t. mertensianae based on observations of natural infection. -from Author",
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AB - This note reports new hosts for hemlock dwarf mistletoe (Arceuthobium tsugense based on field observations made in Oregon and Washington in 1993. Some of these host/parasite combinations have been previously reported based on artificial inoculations as mentioned above, but this is the first report of these host/parasite combinations occurring naturally. Additional occurrences of hemlock dwarf mistletoe on rare hosts from new locations in Oregon, Washington, and Alaska are reported. A table summarizes the host susceptibility for the western hemlock and mountain hemlock dwarf mistletoe A. tsugense tsugense and A.t. mertensianae based on observations of natural infection. -from Author

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