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Image Subject Name Scientific Name Description
5488694 Phytophthora root and crown rot Phytophthora cambivora symptomps of Phytophthora cambivora infection on European chestnut
5488709 Phytophthora root and crown rot Phytophthora cambivora tree mortality caused by Phytophthora cambivora on European chestnut stand
5479855 Phytophthora root rot Phytophthora cinnamomi Sporangia
5479856 Phytophthora root rot Phytophthora cinnamomi Sporangia
5479857 Phytophthora root rot Phytophthora cinnamomi Grape-like clusters of hyphal swellings
1427028 sudden oak death Phytophthora ramorum China Camp State Park, California
5043025 sudden oak death Phytophthora ramorum
5043027 sudden oak death Phytophthora ramorum
5043028 sudden oak death Phytophthora ramorum
5043029 sudden oak death Phytophthora ramorum
5043030 sudden oak death Phytophthora ramorum
5043020 sudden oak death Phytophthora ramorum
5043023 sudden oak death Phytophthora ramorum
5043024 sudden oak death Phytophthora ramorum
1427068 sudden oak death Phytophthora ramorum Dried ooze caused by bleeding from P. ramorum infection on coast live oak.
1427003 sudden oak death Phytophthora ramorum
1427001 sudden oak death Phytophthora ramorum
1427054 sudden oak death Phytophthora ramorum Canker and zone lines caused by P. ramorum.
1415156 Phytophthora root and crown rot Phytophthora cambivora On oak leaves as baiting trap. Sept. 13, 2002
1427102 sudden oak death Phytophthora ramorum Bark cracks and bleeding on coast live oak.
1427095 sudden oak death Phytophthora ramorum Coast live oak mortality from P. ramorum infection at China Camp State Park, CA.
1427071 sudden oak death Phytophthora ramorum Coast live oak dying from P. ramorum infection, China Camp State Park, CA.
1427048 sudden oak death Phytophthora ramorum Tanoak dying from P. ramorum infection, Muir Woods State Park, CA.
1427050 sudden oak death Phytophthora ramorum Tanoak sprouts dying from P. ramorum infection.
1427052 sudden oak death Phytophthora ramorum Tanoak dying from P. ramorum infection, Muir Woods State Park, CA.
1427046 sudden oak death Phytophthora ramorum
1427047 sudden oak death Phytophthora ramorum Tip dieback caused by P. ramorum on tanoak.
1427034 sudden oak death Phytophthora ramorum
1427035 sudden oak death Phytophthora ramorum Big Sur, California
1427033 sudden oak death Phytophthora ramorum
1427041 sudden oak death Phytophthora ramorum Big Sur, California
1427020 sudden oak death Phytophthora ramorum Big Sur, California
1427021 sudden oak death Phytophthora ramorum Big Sur, California
1427023 sudden oak death Phytophthora ramorum Big Sur, California
1427004 sudden oak death Phytophthora ramorum
1427019 sudden oak death Phytophthora ramorum Big Sur, California
1427016 sudden oak death Phytophthora ramorum Big Sur, California
1427109 sudden oak death Phytophthora ramorum
1427022 sudden oak death Phytophthora ramorum Big Sur, California
1427051 sudden oak death Phytophthora ramorum Tanoak sprouts dying from P. ramorum infection.
1415158 Phytophthora root and crown rot Phytophthora cambivora Sept. 13, 2002
1427080 sudden oak death Phytophthora ramorum Tanoak dying from P. ramorum infection, Muir Woods State Park, CA.
1427096 sudden oak death Phytophthora ramorum Tanoak dying from P. ramorum infection at Muir Woods.
1427049 sudden oak death Phytophthora ramorum Tanoak dying from P. ramorum infection.
5021075 Phytophthora root rot Phytophthora cactorum dieback
5021073 Phytophthora root rot Phytophthora cactorum dieback
5021072 Phytophthora root rot Phytophthora cactorum mortality
1427110 sudden oak death Phytophthora ramorum
1415159 Phytophthora root and crown rot Phytophthora cambivora Sept. 13, 2002
1427083 sudden oak death Phytophthora ramorum Zone lines of P. ramorum on coast live oak.
1427030 sudden oak death Phytophthora ramorum
1371011 Phytophthora root and crown rot Phytophthora cambivora Stand symptoms. Story, Germany
4822082 Phytophthora basal canker Phytophthora palmivora canker initially 30 inches off ground, 6 months later - 11 feet off ground as infection progresses into tree stem and scaffold branches
4822078 Phytophthora basal canker Phytophthora palmivora Droplets of discolored sap exuding from infected bark tissues.
1371017 Phytophthora root and crown rot Phytophthora cambivora Necrosis on the roots and root collar. Story, Germany
1427036 sudden oak death Phytophthora ramorum
4822077 Phytophthora basal canker Phytophthora palmivora Basal canker (6 feet off the ground) with dark staining and discoloration of infected bark. Naples, Florida, USA
1415155 Phytophthora root and crown rot Phytophthora cambivora Bark necrosis of root collar. Sept. 13, 2002
1427112 sudden oak death Phytophthora ramorum
1371014 Phytophthora root and crown rot Phytophthora cambivora Tar spots, with bark removed. Lesse, Germany
1427053 sudden oak death Phytophthora ramorum Tip symptoms on tanoak seedling, caused by P. ramorum.
1427113 sudden oak death Phytophthora ramorum
1427101 sudden oak death Phytophthora ramorum
1427094 sudden oak death Phytophthora ramorum Coast live oak dying from P. ramorum infection.
1427093 sudden oak death Phytophthora ramorum P. ramorum symptoms on Rhododendron in central CA. Leaves were confirmed as infected with P. ramorum by Jenny Davidson.
1427069 sudden oak death Phytophthora ramorum Signs of bleeding caused by P. ramorum infection on lichen-covered bark of coast live oak.
1427018 sudden oak death Phytophthora ramorum Big Sur, California
1427070 sudden oak death Phytophthora ramorum Residual signs of bleeding caused by P. ramorum infection on bark surface lichens.
1427092 sudden oak death Phytophthora ramorum P. ramorum leaf symptoms on California laurel (bay).
1427017 sudden oak death Phytophthora ramorum Big Sur, California
1371012 Phytophthora root and crown rot Phytophthora cambivora Story, Germany
1427005 sudden oak death Phytophthora ramorum
1427002 sudden oak death Phytophthora ramorum
1427103 sudden oak death Phytophthora ramorum Tip droop symptom of sudden oak death on tanoak.
1427086 sudden oak death Phytophthora ramorum Coast live oak dying from P. ramorum infection.
1427064 sudden oak death Phytophthora ramorum Coast live oak dying from P. ramorum infection.
1427074 sudden oak death Phytophthora ramorum Big Sur, California
1427090 sudden oak death Phytophthora ramorum Tanoak dying from P. ramorum infection, Muir Woods State Park, CA.
1427045 sudden oak death Phytophthora ramorum Tip dieback symptoms caused by P. ramorum on tanoak.
1427075 sudden oak death Phytophthora ramorum Tip blight symptoms on tanoak caused by P. ramorum.
1427099 sudden oak death Phytophthora ramorum Tip blight symptoms of sudden oak death on tanoak.
1427039 sudden oak death Phytophthora ramorum
5035095 sudden oak death Phytophthora ramorum Tanoak dying from Phytophthora ramorum infection
4822080 Phytophthora basal canker Phytophthora palmivora Distinctive coffee-brown or dark rusty reddish-brown to black discoloration of bark.
4822079 Phytophthora basal canker Phytophthora palmivora zone line between infected vs. uninfected bark
1427072 sudden oak death Phytophthora ramorum Coast live oak infected with P. ramorum.
1427105 sudden oak death Phytophthora ramorum Symptom progression on coast live oaks, from wilting to dead.
1277108 Phytophthora disease of alders Phytophthora alni
1427006 sudden oak death Phytophthora ramorum
2110004 Phytophthora disease of alders Phytophthora alni Smooth-walled oogonium of P. alni (Swedish variant) with oospore and amphigynous antheridium.
2110005 Phytophthora disease of alders Phytophthora alni Mature, riparian common alder (A. glutinosa) stand heavily impacted by root and collar rot caused by P. alni; surviving healthy alder in the center may indicate occurrence of resistance.
2110006 Phytophthora disease of alders Phytophthora alni Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot.
2110007 Phytophthora disease of alders Phytophthora alni Alder plantation on former agricultural land; note infected grey alder (A. incana) with sparse, chlorotic and small-sized foliage.
2110012 Phytophthora disease of alders Phytophthora alni Root system of a 2-year-old nursery grown common alder (A. glutinosa) with necrotic lesions caused by P. alni.
2110009 Phytophthora disease of alders Phytophthora alni Common alder (A. glutinosa) in a non-flooded forest plantation with root and collar rot caused by P. alni.
2110010 Phytophthora disease of alders Phytophthora alni Mature common alder (A. glutinosa) with collar rot by P. alni (note tarry spots at the outer bark) growing in a forest stand; introduction of the pathogen via alder plantation in the neighbourhood established with infested planting stock.
2110011 Phytophthora disease of alders Phytophthora alni 2-yr-old sprouts of of an 8-yr-old coppiced Alnus glutinosa showing wilting due to root and collar rot caused by P. alni.
2110002 Phytophthora disease of alders Phytophthora alni Non-papillate sporangia of P. alni showing nested proliferation.
2110003 Phytophthora disease of alders Phytophthora alni Bullate oogonium of P. alni (German variant) with oospore and amphigynous antheridium.
2110008 Phytophthora disease of alders Phytophthora alni Grey alder (A. incana) with collar rot caused by P. alni; note the typical tarry spots at the outer bark and the tongue-shaped orange-brown necrosis of the inner bark.
2110001 Phytophthora disease of alders Phytophthora alni Mature common alder with collar rot caused by P. alni showing sparse, chlorotic and small-sized foliage.
1371015 Phytophthora root and crown rot Phytophthora cambivora Uniform yellowing of young tree due to root damage. Story, Germany
1371013 Phytophthora root and crown rot Phytophthora cambivora Tar spots. Lesse, Germany
5021074 Phytophthora root rot Phytophthora cactorum dieback
5035093 sudden oak death Phytophthora ramorum Tanoak killed by Phytophthora ramorum in Muir Woods
5035094 sudden oak death Phytophthora ramorum Tanoak dying from Phytophthora ramorum infection
5041040 sudden oak death Phytophthora ramorum Symptoms on coast live oak
5041042 sudden oak death Phytophthora ramorum Symptoms on coast live oak
5058096 sudden oak death Phytophthora ramorum Symptoms on Pacific madrone
5046052 sudden oak death Phytophthora ramorum Dark discoloration of inner bark
5046056 sudden oak death Phytophthora ramorum Crown symptoms
5046063 sudden oak death Phytophthora ramorum Twig dieback
5046068 sudden oak death Phytophthora ramorum Twig symptoms
5046055 sudden oak death Phytophthora ramorum Leaf symptoms
5045047 sudden oak death Phytophthora ramorum Severe impact of Phytophthora ramorum on Pacific madrone
5405299 downy mildew Plasmopara cercidis Angular tan to brown blocks of infected tissue mostly along the veins on the upper leaf surface caused by the fungus Plasmopara cercidis.  The eight or more larger brown spots that are less angular and surrounded by a yellow halo are infections of Pseudocercospora vitis the cause of Pseudocercospora leaf blight. 
5405300 downy mildew Plasmopara cercidis Angular white to brown blocks of infected tissue mostly along the veins on the lower leaf surface caused by the fungus Plasmopara cercidis.  The eight or more larger brown spots that are less angular and surrounded by a yellow halo are infections of Pseudocercospora vitis the cause of Pseudocercospora leaf blight.
5405301 downy mildew Plasmopara cercidis Close-up of the lower surface of a leaf with angular areas of older and younger infections caused by the fungus Plasmopara cercidis.  White sporangiaphores and sporangia can be seen coming from the younger infected tissue.
5405302 downy mildew Plasmopara cercidis Close-up of the lower surface of a leaf with angular areas of younger infections caused by the fungus Plasmopara cercidis.  White sporangiaphores and sporangia can be seen coming from the younger infected tissue.
5405303 downy mildew Plasmopara cercidis Close-up of one angular area of younger infection caused by the fungus Plasmopara cercidis.  White sporangiaphores and sporangia can be seen coming from the infected tissue.
5405304 downy mildew Plasmopara cercidis Characteristic sporangiaphores and sporangia of the fungus Plasmopara cercidis.
5405305 downy mildew Plasmopara cercidis Characteristic sporangiaphores and sporangia of the fungus Plasmopara cercidis.
5253012 Phytophthora root rot Phytophthora cinnamomi Bleeding canker caused by Phytophthora cinnamomi, Arrayanal, Mexico
5253013 Phytophthora root rot Phytophthora cinnamomi Bleeding canker caused by Phytophthora cinnamomi, Arrayanal, Mexico
5253014 Phytophthora root rot Phytophthora cinnamomi Bleeding canker caused by Phytophthora cinnamomi, Arrayanal, Mexico
5253015 Phytophthora root rot Phytophthora cinnamomi Bleeding canker caused by Phytophthora cinnamomi, Arrayanal, Mexico
5253016 Phytophthora root rot Phytophthora cinnamomi Zone lines around canker cause by Phytophthora cinnamomi
5253099 Phytophthora root and crown rots Phytophthora spp. Bleeding canker on oak
5035035 sudden oak death Phytophthora ramorum Leaf symptoms of ramorum leaf blight on California bay laurel
5035036 sudden oak death Phytophthora ramorum Phytophthora ramorum leaf symptoms on California bay laurel
5035039 sudden oak death Phytophthora ramorum Mortality in tanoak caused by Phytophthora ramorum
5044023 sudden oak death Phytophthora ramorum Tanoak sprouts killed by Phytophthora ramorum.
5044026 sudden oak death Phytophthora ramorum Coast live oak killed by P. ramorum.
5044027 sudden oak death Phytophthora ramorum Tan oak killed by P. ramorum.
5044028 sudden oak death Phytophthora ramorum young tanoak killed by P. ramorum.
5044029 sudden oak death Phytophthora ramorum Tanoak killed by P. ramorum.
5044030 sudden oak death Phytophthora ramorum Tanoak sprouts killed by P. ramorum.
5043049 sudden oak death Phytophthora ramorum Sudden oak death field trip
5297081 sudden oak death Phytophthora ramorum Bark cracks with black ooze in coast live oak, a symptom of ramorum canker.
5251049 sudden oak death Phytophthora ramorum Bark discoloration and zone lines in coast live oak.
5037093 sudden oak death Phytophthora ramorum Symptoms of ramorum leaf blight on California bay laurel.
5043084 sudden oak death Phytophthora ramorum site of extensive ramorum canker on oak.
5043085 sudden oak death Phytophthora ramorum Sudden oak death (ramorum canker) symptoms on coast live oak
5043086 sudden oak death Phytophthora ramorum Sudden oak death (ramorum canker) symptoms on coast live oak
5043087 sudden oak death Phytophthora ramorum Sudden oak death (ramorum canker) symptoms on coast live oak
5043090 sudden oak death Phytophthora ramorum Sudden oak death symptoms on coast live oak in California.
5043093 sudden oak death Phytophthora ramorum Sudden oak death (ramorum canker) symptoms on coast live oak
5043094 sudden oak death Phytophthora ramorum Sudden oak death (ramorum canker) symptoms on coast live oak
5038022 sudden oak death Phytophthora ramorum Sudden oak death (ramorum canker) symptoms on coast live oak
5038023 sudden oak death Phytophthora ramorum Sudden oak death (ramorum canker) symptoms on coast live oak
5110058 Phytophthora kernoviae Phytophthora kernoviae Organism grown on P5ARP[H] medium (Jeffers SN and Martin SB (1986) Comparison of two media selective for Phytophthora and Pythium sp. Plant disease 70, 1038-1043). Note earlier spelling of organism prior to publication of official name.
5379795 Phytophthora root rot Phytophthora alni ssp. multiformis
5379796 Phytophthora root rot Phytophthora alni ssp. multiformis
5379797 Phytophthora root rot Phytophthora alni ssp. multiformis
5382601 Phytophthora disease of alders Phytophthora alni
5382602 Phytophthora disease of alders Phytophthora alni
5382598 Phytophthora disease of alders Phytophthora alni
5382599 Phytophthora disease of alders Phytophthora alni
5382600 Phytophthora disease of alders Phytophthora alni bark necrosis
5028035 sudden oak death Phytophthora ramorum
1501061 Phytophthora root rot Phytophthora cinnamomi Littleleaf disease; apple trap diagnosis P. cinn..
5028036 sudden oak death Phytophthora ramorum
5028037 sudden oak death Phytophthora ramorum
5028038 sudden oak death Phytophthora ramorum
5028039 sudden oak death Phytophthora ramorum
5028040 sudden oak death Phytophthora ramorum
5028041 sudden oak death Phytophthora ramorum
5028042 sudden oak death Phytophthora ramorum
5028043 sudden oak death Phytophthora ramorum
5028044 sudden oak death Phytophthora ramorum
5028029 sudden oak death Phytophthora ramorum
5028030 sudden oak death Phytophthora ramorum
5028031 sudden oak death Phytophthora ramorum
5028032 sudden oak death Phytophthora ramorum
5028033 sudden oak death Phytophthora ramorum
5028034 sudden oak death Phytophthora ramorum
1427067 sudden oak death Phytophthora ramorum bleeding canker
5137062 Phytophthora kernoviae Phytophthora kernoviae From Mycol.Res 109, 853-859; Colony types of Phytophthora kernoviae. Figs 1-4. After10 d at 20 xC on CA in complete darkness. Figs 5-6. After 10 d at 20 x on CA with some exposure to light at 7 d for colony measurement. Figs 7-8. After 10 d on CA at ambient room temperature (y23 x) in diurnal light. (Figs 1, 5, isolate P1560; Figs 2, 6-7, isolate P1554; Fig. 3, P1601; Fig. 4, isolate P1608; Fig. 8, isolate P1600).
5137063 Phytophthora kernoviae Phytophthora kernoviae Mycol.Res 109, 853-859; Figs 18-22. Regular, ovoid limoniform sporangia. Figs 23-26. Asymmetrical or ‘mouse-shaped’ sporangia. Bar=10 mm.
5137064 Phytophthora kernoviae Phytophthora kernoviae Mycol.Res 109, 853-859; Representative oogonia, antheridia and thick walled plerotic oospores of Phytophthora kernoviae. Compare oogonia with tapered bases (Figs 10-14, 16) with those without this feature (Figs 9, 15, 17). Bar=10 mm.
5110055 Phytophthora kernoviae Phytophthora kernoviae Single sporangium (foreground) releasing zoospore
5110056 Phytophthora kernoviae Phytophthora kernoviae P. kernoviae sporangium.
5110057 Phytophthora kernoviae Phytophthora kernoviae Scanning electron micrograph, P.kernoviae sporangia
5110059 Phytophthora kernoviae Phytophthora kernoviae necrosis of rhododendron leaves
5110053 Phytophthora kernoviae Phytophthora kernoviae
5110054 Phytophthora kernoviae Phytophthora kernoviae bleeding lesion on trunk
5110020 Phytophthora kernoviae Phytophthora kernoviae external lesion; 14 November 2003
5110021 Phytophthora kernoviae Phytophthora kernoviae lesion on trunk
5110022 Phytophthora kernoviae Phytophthora kernoviae bleeding lesion on trunk
5110023 Phytophthora kernoviae Phytophthora kernoviae lesions of foliage of magnolia
5110024 Phytophthora kernoviae Phytophthora kernoviae wilting of infected rhododendron
5110025 Phytophthora kernoviae Phytophthora kernoviae wilting
5041047 sudden oak death Phytophthora ramorum bleeding cracks
5041048 sudden oak death Phytophthora ramorum exposed canker
5041049 sudden oak death Phytophthora ramorum long drips on trunk
5041050 sudden oak death Phytophthora ramorum
5041051 sudden oak death Phytophthora ramorum tree mortality
5041033 sudden oak death Phytophthora ramorum bleeding discoloration and cracks
5041034 sudden oak death Phytophthora ramorum bleeding discoloration and cracks
5041035 sudden oak death Phytophthora ramorum bleeding discoloration
5041036 sudden oak death Phytophthora ramorum bleeding and cracking symptoms
5041037 sudden oak death Phytophthora ramorum bleeding cracks
5041038 sudden oak death Phytophthora ramorum
5041039 sudden oak death Phytophthora ramorum bleeding symptom
5046053 sudden oak death Phytophthora ramorum infected hillside
5046061 sudden oak death Phytophthora ramorum
5035040 sudden oak death Phytophthora ramorum
5035037 sudden oak death Phytophthora ramorum
5035038 sudden oak death Phytophthora ramorum
5044024 sudden oak death Phytophthora ramorum ooze
1427078 sudden oak death Phytophthora ramorum P. ramorum zone lines on coast live oak.
1427079 sudden oak death Phytophthora ramorum P. ramorum zone lines on coast live oak.
5043031 sudden oak death Phytophthora ramorum
5043041 sudden oak death Phytophthora ramorum
5043018 sudden oak death Phytophthora ramorum
5043019 sudden oak death Phytophthora ramorum
5043021 sudden oak death Phytophthora ramorum
5043022 sudden oak death Phytophthora ramorum
5038006 sudden oak death Phytophthora ramorum
2151033 sudden oak death Phytophthora ramorum Decontamination of infected material. Truck with all material locked inside. Note band on door lock to show that the truck has remained closed.
2151034 sudden oak death Phytophthora ramorum Decontamination of infected nursery material. All personell working at the decontamination site must disinfect their shoes when exiting.
2151035 sudden oak death Phytophthora ramorum Decontamination of infected material. Sterilizing the site after all infected material has been destroyed.
2151036 sudden oak death Phytophthora ramorum Decontamination of infected material. All soil and plant material is burned and buried in a pit
2151037 sudden oak death Phytophthora ramorum Disinfecting the truck that hauled infected material.
2151038 sudden oak death Phytophthora ramorum Decontamination of infected material. Disinfecting the shoes of workers at the decontamination site.
2151039 sudden oak death Phytophthora ramorum Decontamination of infected material. Placing a tarp down to catch all soil spilled from infected nursry material.
2151040 sudden oak death Phytophthora ramorum Decontamination of infected material. Preparing to destroy (burn) infected material.
2151041 sudden oak death Phytophthora ramorum Decontamination of infected material. Preparing to destroy (burn) infected material.
2151042 sudden oak death Phytophthora ramorum Decontamination of infected material. Burning infected material in a pit.
2151043 sudden oak death Phytophthora ramorum Decontamination of infected material. Preparing a fire in a pit to burn infected material.
2151044 sudden oak death Phytophthora ramorum Decontamination of infected material. All pots holding infected material were washed and dipped in disinfectant and double bagged before being buried at the bottom of a landfill.
2151045 sudden oak death Phytophthora ramorum Decontamination of infected material. Washing and disinfecting pots before double bagging them and burying them in the bottom of a landfill.
2151046 sudden oak death Phytophthora ramorum Decontamination of infected material. Spray unit holding disinfectant.
2151047 sudden oak death Phytophthora ramorum Decontamination of infected material. Roped-off decontamination site.
1427097 sudden oak death Phytophthora ramorum
1293004 Phytophthora root and crown rots Phytophthora spp. Leaf spotting; Suspect leaf spots on Camellia must be tested in the lab to verify the presence of P. ramorum.
1293005 Phytophthora root and crown rots Phytophthora spp. Leaf spotting; Suspect leaf spots on Camellia must be tested in the lab to verify the presence of P. ramorum.
1293006 Phytophthora root and crown rots Phytophthora spp. Leaf spotting; Suspect leaf spots on Camellia must be tested in the lab to verify the presence of P. ramorum.
1371016 Phytophthora root and crown rot Phytophthora cambivora Necrosis on the roots. Story, Germany
1427084 sudden oak death Phytophthora ramorum Symptoms of P. ramorum on huckleberry.
1427085 sudden oak death Phytophthora ramorum Bleeding on bark surface of coast live oak, caused by P. ramorum.
1427082 sudden oak death Phytophthora ramorum Coast live oak mortality at China Camp State Park, CA.
1427087 sudden oak death Phytophthora ramorum P. ramorum symptoms on Rhododendron. Leaf was confirmed as infected with P. ramorum by Jenny Davidson.
1427088 sudden oak death Phytophthora ramorum P. ramorum symptoms on Rhododendron. Upper leaf was confirmed as infected by Jenny Davidson.
1427106 sudden oak death Phytophthora ramorum Zone lines of P. ramorum on coast live oak.
1427108 sudden oak death Phytophthora ramorum Oak firewood for sale in Santa Clara, CA
1427111 sudden oak death Phytophthora ramorum This leaf was confirmed as positive for P. ramorum by Jenny Davidson.
1427100 sudden oak death Phytophthora ramorum Oak firewood for sale in Santa Clara, CA.
1427104 sudden oak death Phytophthora ramorum Zone lines of P. ramorum on coast live oak.
1427029 sudden oak death Phytophthora ramorum Jennifer Juzwik in the foreground.; China Camp State Park, California
1427076 sudden oak death Phytophthora ramorum Coast live oak dying from P. ramorum infection.
1427055 sudden oak death Phytophthora ramorum P. ramorum zone lines on coast live oak.
1427056 sudden oak death Phytophthora ramorum Zone lines of P. ramorum on coast live oak.
1427057 sudden oak death Phytophthora ramorum Cankers and zone lines on coast live oak at China Camp State Park in California.
1427058 sudden oak death Phytophthora ramorum P. ramorum zone lines on coast live oak.
1427059 sudden oak death Phytophthora ramorum P. ramorum zone lines on coast live oak.
1427060 sudden oak death Phytophthora ramorum P. ramorum zone lines on coast live oak.
1427061 sudden oak death Phytophthora ramorum Bleeding from P. ramorum canker on coast live oak.
1427007 sudden oak death Phytophthora ramorum
1427008 sudden oak death Phytophthora ramorum
1427009 sudden oak death Phytophthora ramorum
1427031 sudden oak death Phytophthora ramorum zone lines
1427032 sudden oak death Phytophthora ramorum zone lines
1427024 sudden oak death Phytophthora ramorum China Camp State Park, California
1427025 sudden oak death Phytophthora ramorum China Camp State Park, California
1427026 sudden oak death Phytophthora ramorum China Camp State Park, California
1427027 sudden oak death Phytophthora ramorum China Camp State Park, California
1427062 sudden oak death Phytophthora ramorum Showing Hypoxylon thouarsianum, a sapwood decay fungus that is also commonly isolated from Sudden Oak Death - affected oak trees, although it is also found on trees not affected by SOD. The presence of the half-dome-shaped fruiting bodies are indicative of advanced stages of SOD. Newly formed fruiting bodies are olive greenish or shiny black and release powdery green spores upon contact. Older fruiting bodies are dull black.
1427063 sudden oak death Phytophthora ramorum Showing Hypoxylon thouarsianum, a sapwood decay fungus that is also commonly isolated from Sudden Oak Death - affected oak trees, although it is also found on trees not affected by SOD. The presence of the half-dome-shaped fruiting bodies are indicative of advanced stages of SOD. Newly formed fruiting bodies are olive greenish or shiny black and release powdery green spores upon contact. Older fruiting bodies are dull black.
4822081 Phytophthora basal canker Phytophthora palmivora diagnostic culture from infected tree
4824082 Phytophthora root and crown rots Phytophthora spp. Infected roots growing in poorly drained nursery beds.
4824086 Pythium diseases Pythium spp. Scorched leaves of infected seedlings.

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