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Image Subject Name Scientific Name Description
1574390 Rhizoctonia damping-off, blight and rot Rhizoctonia solani After washing, sclerotia of black scurf remain. February 1998
1574387 Rhizoctonia damping-off, blight and rot Rhizoctonia solani After washing, sclerotia of black scurf remain. February 1998
1574388 Rhizoctonia damping-off, blight and rot Rhizoctonia solani After washing, sclerotia of black scurf remain. February 1998
1574389 Rhizoctonia damping-off, blight and rot Rhizoctonia solani After washing, sclerotia of black scurf remain. February 1998
1574385 Rhizoctonia damping-off, blight and rot Rhizoctonia solani Dark sclerotia and hyphae of Rhizoctonia cause soil to adhere more tightly to tubers. February 1998
1574386 Rhizoctonia damping-off, blight and rot Rhizoctonia solani After washing, sclerotia of black scurf remain. February 1998
5485731 common scab of potato Streptomyces scabiei
5492318 early blight Alternaria solani External and internal view of Early Blight lesions; note symptoms within this tuber are shallow.
5492319 early blight Alternaria solani Large lesion on tuber infected with Early Blight pathogen Alternaria solani
5492320 early blight Alternaria solani Shallow symptoms in potato tuber flesh where skin cut away from lesion of tuber infected with Alternaria solani
5492321 late blight Phytophthora infestans Cut surface exposing internal symptoms of tuber infected with Phytophthora infestans
1573275 bacterial soft rot Pectobacterium carotovorum June 1997
1573277 bacterial soft rot Pectobacterium carotovorum June 1997
1573274 bacterial soft rot Pectobacterium carotovorum June 1997
1573272 bacterial soft rot Pectobacterium carotovorum June 1997
5492257 late blight Phytophthora infestans diseased leaf
5492258 late blight Phytophthora infestans diseased leaf
5411354 chemicals misshapen, distorted leaves
5458044 protozoa Spongospora subterranea Tuber exhibiting Powdery Scab (Spongospora subterranea) lesions.
5458045 protozoa Spongospora subterranea Powdery Scab (Spongospora subterranea) lesions.
5458046 protozoa Spongospora subterranea Close view of Powdery Scab (Spongospora subterranea) lesions.
0656096 Potato Spindle Tuber Viroid Pospiviroid PSTVd Potato spindle tuber viroid on potato; left to right: cv. Saco healthy, Saco infected, cv. Kennebec healthy, Kennebec infected.
0162070 Andean Potato Latent Virus Tymovirus APLV Symptoms of Andean potato latent tymovirus infection in Peruvian potato cv. Mi Peru.
0454023 potato wart disease Synchytrium endobioticum Synchytrium endobioticum: newly harvested, warted potato tubers of cv. Duke of York; note that some warts are already starting to rot.
0177059 potato deforming rust Aecidium cantensis Deforming rust, Aecidium cantensis, infection of leaves and petioles of potato
1949049 Potato Yellow Dwarf Virus Nucleorhabdovirus PYDV Potato yellow dwarf rhabdovirus infection showing severe cracking and malformation of potato tubers.
1949048 Potato Yellow Dwarf Virus Nucleorhabdovirus PYDV Later symptoms of potato yellow dwarf rhabdovirus infection in potato showing dwarfing and apical yellowing as it often appears in the field.
0162014 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) Potato plant in pot showing wilt symptoms.
0162013 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) Bacterial ooze exuding from eye of potato tuber.
1436170 common scab of potato Streptomyces scabiei
1571015 Rhizoctonia damping-off, blight and rot Rhizoctonia solani March 1996
1571016 Rhizoctonia damping-off, blight and rot Rhizoctonia solani March 1996
1571017 Rhizoctonia damping-off, blight and rot Rhizoctonia solani March 1996
0656026 ring rot of potato Clavibacter michiganensis ssp. sepedonicus Symptoms of bacterial ring rot (Clavibacter michiganensis subsp. sepedonicus) on a potato plant: advanced stage of infection, showing wilt, rolling of leaf margins, mottling and necrotic tissue.
0176002 Tobacco Ringspot Virus Nepovirus TRSV Advanced symptoms of Andean potato calico in potato, due to potato black ringspot nepovirus.
0162085 Potato Yellow Dwarf Virus Nucleorhabdovirus PYDV Potato plant stunted by potato yellow dwarf rhabdovirus infection
5402938 late blight Phytophthora infestans 1950
5411353 chemicals misshapen, distorted leaves
0162083 Potato Spindle Tuber Viroid Pospiviroid PSTVd healthy and diseased tubers, cv. Nicola.
0162086 potato yellow vein disease Potato plant affected by potato yellow vein disease.
0454069 potato stolbur phytoplasma Phytoplasma SMLO Symptoms of infection by potato stolbur phytoplasma in a potato plant.
0454067 Potato Spindle Tuber Viroid Pospiviroid PSTVd Typical aerial symptoms of potato spindle tuber viroid on potato; cv. Kennebec (in centre); healthy plants (left and right).
5428815 Potato Virus Y Potyvirus PVY
5428822 Potato Virus Y Potyvirus PVY Leaf symptoms. Immunostrip positive.
5428823 Potato Virus Y Potyvirus PVY Leaf symptoms. Immunostrip positive.
5428813 Potato Virus Y Potyvirus PVY
5428814 Potato Virus Y Potyvirus PVY
1534056 southern blight Sclerotium rolfsii
5402928 late blight Phytophthora infestans
1571043 late blight Phytophthora infestans
1571044 late blight Phytophthora infestans
1571045 late blight Phytophthora infestans
1571046 late blight Phytophthora infestans Leaf underside
1571047 late blight Phytophthora infestans
1571048 late blight Phytophthora infestans
1571049 late blight Phytophthora infestans
1571051 late blight Phytophthora infestans
1571052 late blight Phytophthora infestans
5402925 late blight Phytophthora infestans on leaflets
5402926 late blight Phytophthora infestans leaf lesions
5402927 late blight Phytophthora infestans
5402975 common scab of potato Streptomyces scabiei Katahdin variety
5389322 potato rot nematode Ditylenchus destructor Potato rot nematode Ditylenchus destructor enters potato tubers through lenticels and initially causes small white mealy spots just below the surface that are only visible if the skin is removed. As the infestation progresses there are often secondary invasions of fungi, bacteria, etc.; Cultivar 'Mandel'
5389323 potato rot nematode Ditylenchus destructor Potato rot nematode Ditylenchus destructor enters potato tubers through lenticels and initially causes small white mealy spots just below the surface that are only visible if the skin is removed. As the infestation progresses there are often secondary invasions of fungi, bacteria, etc.; Cultivar 'Mandel'
5389324 potato rot nematode Ditylenchus destructor Potato rot nematode Ditylenchus destructor enters potato tubers through lenticels and initially causes small white mealy spots just below the surface that are only visible if the skin is removed. As the infestation progresses there are often secondary invasions of fungi, bacteria, etc.; Cultivar 'Mandel'
5368597 bacterial soft rot Pectobacterium carotovorum ssp. carotovorum Root and lower stem rot.
5368598 bacterial soft rot Pectobacterium carotovorum ssp. carotovorum Root and lower stem rot.
5368599 bacterial soft rot Pectobacterium carotovorum ssp. carotovorum Root and lower stem rot.
5368600 bacterial soft rot Pectobacterium carotovorum ssp. carotovorum Close-up of root and lower stem rot.
5368619 glyphosate Yellowing of the youngest leaves from their base. Glyphosate injury.
5368620 glyphosate Yellowing of the youngest leaves from their base. Glyphosate injury
5368621 glyphosate Yellowing of the youngest leaves from their base. Glyphosate injury
5333045 late blight Phytophthora infestans
5333046 late blight Phytophthora infestans
5294052 Verticillium wilt Verticillium albo-atrum
5294053 Verticillium wilt Verticillium albo-atrum
5294054 Verticillium wilt Verticillium albo-atrum
5357385 water stress Moisture stressed potatoes in the field.
1949047 potato yellow vein disease Symptoms of potato yellow vein disease on potato cv. Santa Catalina.
1949046 potato yellow vein disease Symptoms of potato yellow vein disease on potato cv. María.
0725099 gangrene Phoma exigua var. foveata External symptoms of Phoma exigua var. foveata on potato tubers showing irregularly shaped, sunken lesions.
0725098 gangrene Phoma exigua var. foveata Internal symptoms of Phoma exigua var. foveata on potato tubers showing more or less extensive cavities with definitive margins. Black and white photo
0725083 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) Symptoms of Burkholderia (Pseudomonas) solanacearum on a potato plant.
0725084 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) External symptoms of potato tuber infected by Burkholderia (Pseudomonas) solanacearum.
0725024 potato stolbur phytoplasma Phytoplasma SMLO Symptoms of potato stolbur phytoplasma on potato. Note the presence of aerial tubers.
0660073 Potato Spindle Tuber Viroid Pospiviroid PSTVd Potato spindle tuber viroid: reduced size and yield of potato tubers (healthy tubers on right).
0660030 black potato blight Phoma andigena Symptoms of Phoma andigena on a potato leaf collected in the field in the Peruvian highlands.
0660031 Septoria leafspot, annular leafspot Septoria lycopersici malagutii Symptoms on potato leaf due to Septoria lycopersici var. malagutii.
0660010 potato rot nematode Ditylenchus destructor External symptoms caused by Ditylenchus destructor on potato tubers, showing sunken areas with cracked and wrinkled skin
0660011 potato rot nematode Ditylenchus destructor Internal symptoms of potato tuber infested with Ditylenchus destructor. Black and white image
0656087 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) Transverse sections of potato tubers infected by Burkholderia (Pseudomonas) solanacearum showing browning and necrosis of the vascular ring and immediately surrounding tissues.
0656084 ring rot of potato Clavibacter michiganensis ssp. sepedonicus Transverse section of potato tuber infected by Clavibacter michiganensis subsp. sepedonicus; showing discoloration of vascular ring and adjacent tissue, and bacterial ooze.
5357312 water scald A potato plant with symptoms of water scalding in the field.
5357311 water scald Water scalding of a potato leaflet in the field.
5357313 unknown virus Potato plants showing symptoms of infection with an unknown virus.
5360715 Potato Leaf Roll Virus Polerovirus PLRV Potato plant displaying symptoms of Potato Leaf Roll Virus (vectored by aphids), next to a healthy plant.
5360714 Potato Leaf Roll Virus Polerovirus PLRV Potato plant displaying symptoms of Potato Leaf Roll Virus (vectored by aphids), next to a healthy plant.
5356842 Potato Leaf Roll Virus Polerovirus PLRV Potato plant displaying symptoms of Potato Leaf Roll Virus, Peru and Bolivia.
5362524 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Kersey in 1997.
5362520 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Platteville in 1997.
5362522 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Platteville in 1997.
5362521 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Platteville in 1997.
5362511 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato leaflet on a field at Platteville in 1997.
5362523 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Kersey in 1997.
5362519 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362517 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362518 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362516 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362514 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362515 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362513 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362512 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato leaflet on a field at Platteville in 1997.
5362509 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362510 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato plant on a field at Platteville in 1997.
5362508 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Platteville in 1997.
5362506 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Platteville in 1997.
5362507 late blight Phytophthora infestans Late blight (Phytophthora infestans) infection of  a potato field at Platteville in 1997.
5362500 early blight Alternaria solani Potato plants with early blight (Alternaria solani) infection in the field.
5362499 early blight Alternaria solani Potato leaves showing early blight (Alternaria solani) infection in the field.
5362498 early blight Alternaria solani Potato leaves showing early blight (Alternaria solani) infection in the field.
5362497 early blight Alternaria solani Potato leaves showing early blight (Alternaria solani) infection in the field.
5362496 early blight Alternaria solani A field of potatoes showing early blight (Alternaria solani) infection.
5362495 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato stem in the field.
5362494 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato stem in the field.
5362493 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato leaf in the field.
5362489 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato leaf in the field.
5362491 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato leaf in the field.
5362492 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato leaf in the field.
5362490 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato leaf in the field.
5362488 early blight Alternaria solani Early blight (Alternaria solani) symptoms on potato leaves in the field.
5362487 early blight Alternaria solani Early blight (Alternaria solani) symptoms on potato leaves in the field.
5362486 early blight Alternaria solani Early blight (Alternaria solani) symptoms on a potato leaf in the field.
5365618 brown spot Alternaria alternata Potato leaves showing Alternaria blight infection caused by Alternaria alternata.
5361639 early blight Alternaria solani A potato leaflet showing early blight symptoms caused by the fungus Alternaria solani in the field.
5361637 early blight Alternaria solani Potato plants showing early blight symptoms caused by the fungus Alternaria solani in the field.
5361638 early blight Alternaria solani Potato plants showing early blight symptoms caused by the fungus Alternaria solani in the field.
5356850 ring rot of potato Clavibacter michiganensis ssp. sepedonicus Potato tuber cut open to display symptoms of bacterial ring rot  (Clavibacter michiganensis subsp. sepedonicus).
5356849 potato smut Thecaphora solani Potato tuber in Bolivia cut open to show symptoms of infection with potato smut (Thecaphora solani).
5356848 potato smut Thecaphora solani Potato tuber in Bolivia showing symptoms of infection with potato smut (Thecaphora solani).
5356843 potato deforming rust Aecidium cantensis Leaves of papaliza or ulluco (Ullucus tuberosus), a dietary staple in Bolivia, showing symptoms of potato deforming rust (Aecidium cantensis).
5357041 Potato Mop Top Virus Carlavirus PMTV Potato leaf showing symptoms of infection with Potato Mop Top Virus.
5356838 late blight Phytophthora infestans Potato leaf showing signs of infection with late blight (Phytophthora infestans).
5356837 southern blight Sclerotium rolfsii Potato plant showing symptoms of stem rot, caused by infection with Sclerotium rolfsii.
5356836 bacterial black stalk Erwinia spp. Potato plant displaying symptoms of blackleg disease, caused by infection with Erwinia sp.
5356831 edema Potato leaf showing symptoms of edema.
5356830 edema Potato leaf showing symptoms of edema.
5356794 ring rot of potato Clavibacter michiganensis ssp. sepedonicus Potato tuber cut open to display symptoms of bacterial ring rot  (Clavibacter michiganensis subsp. sepedonicus).
5356693 Potato Spindle Tuber Viroid Pospiviroid PSTVd Potato tubers showing symptoms of infection with Potato Spindle Tuber Virus.
5356692 Potato Spindle Tuber Viroid Pospiviroid PSTVd Potato tubers showing symptoms of infection with Potato Spindle Tuber Virus.
5357042 ring rot of potato Clavibacter michiganensis ssp. sepedonicus Potato plant infected with bacterial ring rot of potato (Clavibacter michiganensis subsp. sepedonicus).
5362908 early blight Alternaria solani A potato plant showing early blight infection caused by Alternaria solani.
5362907 early blight Alternaria solani A potato plant showing early blight infection caused by Alternaria solani.
5362906 early blight Alternaria solani A potato field showing early blight infection caused by Alternaria solani.
5362905 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362903 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362904 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362901 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362902 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362899 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362900 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362898 late blight Phytophthora infestans A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362897 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362896 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans on a potato field at Peckham.
5362894 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans.
5362895 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans.
5362893 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans.
5362892 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans.
5362890 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans.
5362891 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans.
5362889 late blight Phytophthora infestans A potato plant showing late blight infection caused by Phytophthora infestans.
5362887 late blight Phytophthora infestans A potato field showing late blight infection caused by Phytophthora infestans.
5362888 late blight Phytophthora infestans A potato field showing late blight infection caused by Phytophthora infestans.
5362886 late blight Phytophthora infestans A potato field showing late blight infection caused by Phytophthora infestans.
5362884 late blight Phytophthora infestans A potato field showing late blight infection caused by Phytophthora infestans.
5362885 late blight Phytophthora infestans A potato field showing late blight infection caused by Phytophthora infestans.
5362883 late blight Phytophthora infestans A potato field showing late blight infection caused by Phytophthora infestans.
5359095 early blight Alternaria solani Potato plants showing early blight symptoms caused by Alternaria solani in the field.
5359094 early blight Alternaria solani A potato field showing early blight symptoms caused by Alternaria solani in the field.
5359093 early blight Alternaria solani A potato leaf showing early blight symptoms caused by Alternaria solani in the field.
5359092 early blight Alternaria solani A potato leaf showing early blight symptoms caused by Alternaria solani in the field.
5359038 heat Potato plants suffering from heat/temperature stress in field.
5359037 heat A scene of potato field plants suffering from heat/temperature stress.
5359036 Rhizoctonia damping-off, blight and rot Rhizoctonia solani Early death of potato caused by Rhizoctonia solani in the field.
5357315 Alfalfa Mosaic Virus Alfamovirus AMV A potato leaf showing symptoms of Alfalfa Mosaic Virus (AMV) in the field.
5357314 Alfalfa Mosaic Virus Alfamovirus AMV A potato leaf showing symptoms of Alfalfa Mosaic Virus (AMV) in the field.
5357310 Fusarium wilts, blights, rots and damping-off Fusarium spp. Potato plants showing Fusarium wilt symptoms caused by Fusarium spp. in the field.
5357309 Fusarium wilts, blights, rots and damping-off Fusarium spp. A potato plant showing Fusarium wilt symptoms caused by Fusarium spp. in the field.
5357308 Fusarium wilts, blights, rots and damping-off Fusarium spp. A potato plant showing Fusarium wilt symptoms caused by Fusarium spp. in the field.
5362503 early blight Alternaria solani Symptoms of early blight (Alternaria solani) on a volunteer potato plant growing in field corn.
5362502 early blight Alternaria solani Symptoms of early blight (Alternaria solani) on a volunteer potato plant growing in field corn.
1490010 zebra chip Candidatus Liberibacter spp. An emerging disease condition of potato. Devastating in northern Mexico and the southwestern US. The disease is known as "zebra chip" or "papa rayada". It is either produced by a phytoplasma or by the effects of the toxicogenic saliva of the potato/tomato psyllid (Bactericerca cockerelli). Taken near Saltillo, Coahuila, Mexico on July 5, 2004
1490011 zebra chip Candidatus Liberibacter spp. An emerging disease condition of potato. Devastating in northern Mexico and the southwestern US. The disease is known as "zebra chip" or "papa rayada". It is either produced by a phytoplasma or by the effects of the toxicogenic saliva of the potato/tomato psyllid (Bactericerca cockerelli). Taken near Saltillo, Coahuila, Mexico on July 5, 2004
1490012 zebra chip Candidatus Liberibacter spp. An emerging disease condition of potato. Devastating in northern Mexico and the southwestern US. The disease is known as "zebra chip" or "papa rayada". It is either produced by a phytoplasma or by the effects of the toxicogenic saliva of the potato/tomato psyllid (Bactericerca cockerelli). Taken near Saltillo, Coahuila, Mexico on July 5, 2004
1490013 zebra chip Candidatus Liberibacter spp. An emerging disease condition of potato. Devastating in northern Mexico and the southwestern US. The disease is known as "zebra chip" or "papa rayada". It is either produced by a phytoplasma or by the effects of the toxicogenic saliva of the potato/tomato psyllid (Bactericerca cockerelli). Taken near Saltillo, Coahuila, Mexico on July 5, 2004
1490014 zebra chip Candidatus Liberibacter spp. An emerging disease condition of potato. Devastating in northern Mexico and the southwestern US. The disease is known as "zebra chip" or "papa rayada". It is either produced by a phytoplasma or by the effects of the toxicogenic saliva of the potato/tomato psyllid (Bactericerca cockerelli). Taken near Saltillo, Coahuila, Mexico on July 5, 2004
5258065 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
5259066 common scab of potato Streptomyces scabiei
5259067 common scab of potato Streptomyces scabiei
5257069 late blight Phytophthora infestans
5257070 late blight Phytophthora infestans
5257071 late blight Phytophthora infestans
5257072 late blight Phytophthora infestans
5257087 late blight Phytophthora infestans
5257089 late blight Phytophthora infestans atypical leaf symptoms
5257091 late blight Phytophthora infestans atypical leaf symptoms
5258054 Rhizoctonia damping-off, blight and rot Rhizoctonia solani cause of aerial potato tubers
5258055 Rhizoctonia damping-off, blight and rot Rhizoctonia solani cause of aerial potato tubers
5258056 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
5258059 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
5258060 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
5258061 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
5258062 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
5258063 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
5258064 Rhizoctonia damping-off, blight and rot Rhizoctonia solani
2131077 white potato cyst nematode Globodera pallida Females of wPCN Globodera pallida on root. You can also see a brown cyste (dead female) on root
1321090 late blight Phytophthora infestans Potatoes infected with late blight are purplish and shrunken on the outside, corky and rotted inside.
1949050 Potato Yellow Dwarf Virus Nucleorhabdovirus PYDV Potato yellow dwarf rhabdovirus infection showing severe internal necrosis, cracking and malformation of potato tubers.
0162084 Potato Spindle Tuber Viroid Pospiviroid PSTVd
0162015 Southern bacterial wilt Ralstonia solanacearum (except Race 3 Biovar 2) Typical brown discoloration of the vascular ring and slime oozing from the infected tissue. Black necrotic tissue is due to secondary rotting.

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