Phytophthora nicotianae CBS 321.49 CMA after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands)
Photo Gallery
|
P. nicotianae colony morphology on CMA  |
Boot wash to station to control spread of P. agathidicida  Use of hypochlorite solution applied through a “livestock drench-gun”, integrated with a soil grate to allow potentially contaminated soil to be collected |
P. tentaculata disease symptoms on California mugwort  Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
|
P. pinifolia on Pinus radiata  Pinus radiata, note Infected needles at right angles to stem |
P. cambivora oogonium  Bullate oogonium and and two-celled amphigynous antheridium |
P. cinnamomi colony morphology on V8  P. cinnamomi colony growth on V8 at 14 days |
|
P. cinnamomi on Banksia  Dead and dying Banksia, Western Australia |
P. alni symptoms on European Alder  Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot. |
Mat to control spread of P. agathidicida  Jogger running over a plastic-reinforced, foam-mat containing a 2% solution of Trigene™ Advance (quaternary ammonium compound) as part of a cross-country event, in the Waitakere Regional Park |
|
P. pluvialis sporangium  Sporangia showing typical ovoid shape and semi-papillate condition |
P. kernoviae leaf wilt  Wilted leaf of infected rhododendron |
Black pod disease of cacao caused by P. palmivora  Black pod of cacao in Ecuador caused by P. palmivora (see lesioned fruit on left). |