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Sudden Oak Death Results 2010

Extra Plants

On the long-term monitoring sites, volunteers chose an extra plant species to be used as bait. Two samples from each plant were cultured and identified:

Baiting period 1001 Clarks Creek Downstream 1002 Anderson Creek 1003 Evans Creek 1006 Dogfish Creek
1
Camellia
P. gonapodyides (1), unknown (1)
Sword fern (Polystichum munitum)
P. gonapodyides (1), unknown (1)
Himalayan blackberry (Rubus armeniacus)
P. gonapodyides (2)
English laurel (Prunus laurocerasus)
no growth
2
Gold dust plant (Aucuba japonica ‘Variegata)
Pythium litorale or Py. sterilum (2)
Sword fern (Polystichum munitum)
P. gonapodyides (1), unknown (1)
Japanese knotweed (Polygonum cuspidatum)
P. gonapodyides (2)
Viburnum davidii
unknown (2)
3
Strawberry tree (Arbutus unedo)
Pythium sp. or Py. undulatum (1), unknown (1)
Sword fern (Polystichum munitum)
Pythium sp. or Py. undulatum (1), unknown (1)
English laurel (Prunus laurocerasus)
fungus* (Ophiocordyceps crassispora, Cylindrocarpon obtusisporum, Nectria) (1), unknown (1)
English ivy (Hedera helix )P. gonapodyides (2), unknown (1)
4
Dwarf cherry laurel P. gonapodyides (2), unknown (2) Dandelion (Taraxacum officinale)unknown (2) Pacific madrone (Arbutus menziesii)unknown (2) Rhododendron spp. P. gonapodyides (1), unknown (1)
5
unknown (2) Horsetail (Equisetum spp.)unknown (2) Evergreen huckleberry (Vaccinium ovatum)P. gonapodyides (1), unknown (2) English laurel (Prunus laurocerasus)
6
Red tip Photinia P. gonapodyides (2) Red alder (Alnus rubra)P. gonapodyides (1), unknown (2) Kousa dogwood (Cornus kousa)no growth English ivy (Hedera helix )unknown (2)

*probably endophytic in host leaf