Phytophthora collar rot on Italian alder trees: standing, dead tree
Photo Gallery
|
P. siskiyouensis disease symptoms on Italian alder  |
P. pinifolia sporangia  Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles. |
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
|
P. palmivora symptoms on fruit  Brown rot on a lemon fruit caused by Phytophthora palmivora. |
P. kernoviae oogonium  Oogonium with amphigynous antheridia, photo from Q-bank, used with permission |
P. nemorosa colony morphology on PDA  Colony morphology on PDA at 14 days |
|
Dying Port Orford Cedar trees  |
P. tentaculata sporangium  Papillate sporangium of P. tentaculata with an elongated neck or beak. |
P. boehmeriae oogonium  Oogonia and oospores with amphigynous antheridia |
|
P. austrocedrae colony morphology on Tomato juice agar  Colony morphology of P. austrocedrae at 16 ºC after 4 weeks on Tomato juice agar |
Phytophthora cactorum canker on beech tree  Canker on Fagus sp. caused by Phytophthora cactorum. |
P. pluvialis on Pinus radiata  A Pinus radiata needle showing black resinous bands or marks consistent with the presence of red needle cast disease. |