Photo Gallery

P. pluvialis on Pinus radiata in New Zealand Typical red needle cast symptoms along a twig. Lesions begin at the base of the needle which subsequently turns brown and is cast from the twig.	P. tentaculata oogonia and antheridia Oospores and oogonia with mostly paragynous but some amphigynous antheridia of P. tentaculata	Stain from Port Orford Cedar root disease Stain from Chamaecyparis lawsoniana root disease on the Smith River
P. katsurae disease symptoms Infected chestnut (Castanea) with bleeding canker	P. megakarya oospore P. megakarya oogonia, oospore, and antheridium	P. frigida sporangia Noncaducous sporangia showing ovoid shape and papillate condition
P. chlamydospora chlamydospore Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.	Growth of P. palmivora on CMA Growth of P. palmivora on corn meal agar	P. nemorosa sporangia Ovoid, semi-papillate sporangia showing sympodial development of sporangiophore
P. pinifolia on Pinus radiata Pinus radiata, note Stem canker associated with necrotic needles.	P. pluvialis oogonium and antheridium Oogonium and oospore with amphigynous antheridium	P. kernoviae sporangium Asymmetrical sporangium, photo from Q-bank, used with permission