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.
Photo Gallery
|
P. pluvialis on Pinus radiata in New Zealand  |
P. pinifolia on Pinus radiata  Pinus radiata impacted by DFP, note healthy new growth |
P. agathidicida lesion on kauri tree  Close up of gum oozing out of lower trunk lesions of a young kauri tree at Maungaroa Ridge, Piha region of Waitakere Regional Park |
|
P. agathidicida lesion on kauri tree  Gum oozing out of longitudinal lesion |
P. cambivora oogonium  Bullate oogonium with amphyginous antheridium |
P. agathidicia oogonia  Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |
|
P. cambivora colony morphology on V8  Colony morphology on V8 at 14 days |
P. alni oogonium  Bullate oogonium of P. alni (German variant) with oospore and amphigynous antheridium. |
Growth of P. arenaria on CA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on carrot agar |
|
P. siskiyouensis canker on Italian alder  Bleeding canker at the base of a tree and a sprinkler emitter (arrow) adjacent to the trunk |
Growth of P. megakarya on PDA  Growth of P. megakarya on potato dextrose agar |
P. cambivora coralloid hyphae  Coralloid hyphae with hyphal swelling-like structures |