Photo Gallery

Phytophthora cactorum disease symptoms on English walnut Mortality of Juglans regia caused by Phytophthora cactorum.	P. cinnamomi on Banksia Death of woodland Banksia, Western Australia	P. cactorum colony morphology on PDA Colony morphology on PDA at 14 days
P. frigida symptoms 3 Black wattle bark with symptoms of gummosis	P. lateralis on Port Orford cedar Bole lesion on Chaemacyparis lawsoniana in Lopérec, France	P. alni oogonium Bullate oogonium of P. alni (German variant) with oospore and amphigynous antheridium.
Comparative gametangial morphology of Phytophthora Clade 5 species Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015).	Growth of P. arenaria on MEA Colony morphology of Phytophthora arenaria after 7 days at 20°C on malt extract agar	P. tentaculata oogonia and antheridia Oospores and oogonia with mostly paragynous but some amphigynous antheridia of P. tentaculata
P. agathidicia disease symptoms on kauri Crown decline of mature kauri, with branchlets with little or no leaves	P. kernoviae leaf wilt Wilted leaf of infected rhododendron	Growth of P. megakarya on V8 agar Growth of P. megakarya on V8 agar