| Image |
Descriptor |
Description |
Photographer |
| 5257078 |
Asexual Spore |
zoospores released from sporangium; indirect germination |
Division of Plant Industry Archive |
| 5257076 |
Asexual Spore |
zoospores released from sporangium |
Division of Plant Industry Archive |
| 5257092 |
Asexual Spore |
zoospores released from sporangium |
Division of Plant Industry Archive |
| 5356839 |
Field |
Field plots in Bolivia testing potato varieties for resistance to late blight (Phytophthora infestans) in 1978. |
William M. Brown Jr. |
| 1571050 |
Infestation |
|
Gerald Holmes |
| 5257077 |
Research |
|
Division of Plant Industry Archive |
| 5257073 |
Sexual Spore |
oospore |
Division of Plant Industry Archive |
| 5257079 |
Sexual Spore |
oospore germination |
Division of Plant Industry Archive |
| 5365779 |
Sign |
Potato leaf showing signs of infection with late blight (Phytophthora infestans). |
G.D. Franc |
| 5365780 |
Sign |
Late blight (Phytophthora infestans) on potato tubers only 10 days after infection. |
G.D. Franc |
| 5365781 |
Sign |
Late blight (Phytophthora infestans) infection on the leaflet of a potato plant. |
G.D. Franc |
| 5356795 |
Sign |
Potato foliage showing signs of infection with late blight (Phytophthora infestans). |
William M. Brown Jr. |
| 5356838 |
Symptoms |
Potato leaf showing signs of infection with late blight (Phytophthora infestans). |
William M. Brown Jr. |
| 5257091 |
Symptoms |
atypical leaf symptoms |
Division of Plant Industry Archive |
| 5393418 |
Symptoms |
Brownish on leaf and stem, with hyphae and sporangia produced at the edge of spot on leaf |
Yuan-Min Shen |
| 5402925 |
Symptoms |
on leaflets |
R.W. Samson |
| 5402926 |
Symptoms |
leaf lesions |
R.W. Samson |
| 5402927 |
Symptoms |
|
R.W. Samson |
| 5402928 |
Symptoms |
|
R.W. Samson |
| 5362506 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Platteville in 1997. |
Howard F. Schwartz |
| 5362507 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Platteville in 1997. |
Howard F. Schwartz |
| 5362508 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Platteville in 1997. |
Howard F. Schwartz |
| 5362509 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362510 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362511 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato leaflet on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362512 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato leaflet on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362513 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362514 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362515 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362516 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362517 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362518 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362519 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato plant on a field at Platteville in 1997. |
Howard F. Schwartz |
| 5362520 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Platteville in 1997. |
Howard F. Schwartz |
| 5362521 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Platteville in 1997. |
Howard F. Schwartz |
| 5362522 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Platteville in 1997. |
Howard F. Schwartz |
| 5362523 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Kersey in 1997. |
Howard F. Schwartz |
| 5362524 |
Symptoms |
Late blight (Phytophthora infestans) infection of a potato field at Kersey in 1997. |
Howard F. Schwartz |
| 5362883 |
Symptoms |
A potato field showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362884 |
Symptoms |
A potato field showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362885 |
Symptoms |
A potato field showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362886 |
Symptoms |
A potato field showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362887 |
Symptoms |
A potato field showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362888 |
Symptoms |
A potato field showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362889 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362890 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362891 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362892 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362893 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362894 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362895 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans. |
Howard F. Schwartz |
| 5362896 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362897 |
Symptoms |
A potato plant showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362898 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362899 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362900 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362901 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362902 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362903 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362904 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 5362905 |
Symptoms |
A potato leaflet showing late blight infection caused by Phytophthora infestans on a potato field at Peckham. |
Howard F. Schwartz |
| 1321090 |
Symptoms |
Potatoes infected with late blight are purplish and shrunken on the outside, corky and rotted inside. |
Scott Bauer |
| 1571043 |
Symptoms |
|
Gerald Holmes |
| 1571044 |
Symptoms |
|
Gerald Holmes |
| 1571045 |
Symptoms |
|
Gerald Holmes |
| 1571046 |
Symptoms |
Leaf underside |
Gerald Holmes |
| 1571047 |
Symptoms |
|
Gerald Holmes |
| 1571048 |
Symptoms |
|
Gerald Holmes |
| 1571049 |
Symptoms |
|
Gerald Holmes |
| 5257087 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257089 |
Symptoms |
atypical leaf symptoms |
Division of Plant Industry Archive |
| 5257094 |
Symptoms |
atypical leaf symptoms atypical |
Division of Plant Industry Archive |
| 5257095 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257096 |
Symptoms |
|
Division of Plant Industry Archive |
| 5333045 |
Symptoms |
|
Mary Ann Hansen |
| 5333046 |
Symptoms |
|
Mary Ann Hansen |
| 5333060 |
Symptoms |
|
Robert Wick |
| 5333061 |
Symptoms |
Symptoms and signs |
Mary Ann Hansen |
| 1571051 |
Symptoms |
|
Gerald Holmes |
| 1571052 |
Symptoms |
|
Gerald Holmes |
| 5257039 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257040 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257041 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257042 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257043 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum inoc w/tomato & potato strain after 7 days |
Division of Plant Industry Archive |
| 5257044 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum inoc w/zoozpores & sporangia after 4 days |
Division of Plant Industry Archive |
| 5257045 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum inoc w/tomato & potato strain after 7 days |
Division of Plant Industry Archive |
| 5257046 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum inoc w/tomato & potato strain after 7 days |
Division of Plant Industry Archive |
| 5257047 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum inoc w/zoozpores & sporangia after 4 days |
Division of Plant Industry Archive |
| 5257048 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum inoc w/zoozpores & sporangia after 4 days |
Division of Plant Industry Archive |
| 5257049 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum 7 days after inoc. |
Division of Plant Industry Archive |
| 5257050 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum 7 days after inoc. |
Division of Plant Industry Archive |
| 5257051 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum 5 days after inoc. |
Division of Plant Industry Archive |
| 5257052 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum 5 days after inoc. |
Division of Plant Industry Archive |
| 5257053 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum 5 days after inoc. |
Division of Plant Industry Archive |
| 5257054 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257055 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257056 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257057 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257058 |
Symptoms |
Phytopthora infestans Lycopersicon esculentum 5 days after inoc. |
Division of Plant Industry Archive |
| 5257059 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257060 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257061 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257062 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257063 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257064 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257065 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257066 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257067 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257068 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257069 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257070 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257071 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257072 |
Symptoms |
|
Division of Plant Industry Archive |
| 5257090 |
Testing |
surface disinfecting foliage |
Division of Plant Industry Archive |
| 5257088 |
Testing |
|
Division of Plant Industry Archive |
| 5257074 |
Testing |
|
Division of Plant Industry Archive |
| 5257075 |
Testing |
|
Division of Plant Industry Archive |
| 5257080 |
Testing |
disinfesting tubers |
Division of Plant Industry Archive |
| 5257081 |
Testing |
|
Division of Plant Industry Archive |
| 5257082 |
Testing |
|
Division of Plant Industry Archive |
| 5257083 |
Testing |
|
Division of Plant Industry Archive |
| 5257084 |
Testing |
|
Division of Plant Industry Archive |
| 5257085 |
Testing |
|
Division of Plant Industry Archive |
| 5257086 |
Testing |
|
Division of Plant Industry Archive |
