First baiting at Evans Creek, Redmond, WA by Master Gardener volunteers on March 2, 2010
| Baiting period | Bait leaf spp. | Phytophthora spp. and others identified |
|
1
| Rhododendron | P. gonapodyides (7), unknown (1) |
|
1
| Himalayan blackberry (Rubus armeniacus) | P. gonapodyides (2) |
|
2
| Rhododendron | P. gonapodyides (4), Pythium litorale or Py. sterilum (1), unknown (3) |
|
2
| Japanese knotweed (Polygonum cuspidatum) | P. gonapodyides (2) |
|
3
| Rhododendron | P. gonapodyides (2), P. drechsleri (1), Pythium sp.(1), Py. litorale or Py. sterilum (2), Py. undulatum (1), unknown (2) |
|
3
| English laurel (Prunus laurocerasus) | fungus* (Ophiocordyceps crassispora, Cylindrocarpon obtusisporum, Nectria) (1), unknown (1) |
|
4
| Rhododendron | P. gonapodyides (4), P. cambivora (1), unknown (4) |
|
4
| Pacific madrone (Arbutus menziesii) | unknown (2) |
|
5
| Rhododendron | P. gonapodyides (7), unknown (4) |
|
5
| Evergreen huckleberry (Vaccinium ovatum) | P. gonapodyides (1), unknown (2) |
|
6
| Rhododendron | P. gonapodyides (8), unknown (6) |
|
6
| Kousa dogwood (Cornus kousa) | no organisms isolated |
*probably endophytic in host leaf
WSU Puyallup Research & Extension Center
2606 West Pioneer, Puyallup, WA, 98371-4998 USA
Last updated 9/24/2025