| Image |
Descriptor |
Description |
Photographer |
| 5077045 |
Sign |
Total collapse of the plant usually occurring when temperatures reach 90 degrees and above. Plant wilts while still green. (Below left)
Bacteria will stream out of tissue taken from lower stem.mb=295 |
David B. Langston |
| 5261090 |
Sign |
|
Division of Plant Industry Archive |
| 5261091 |
Sign |
|
Division of Plant Industry Archive |
| 5261096 |
Sign |
|
Division of Plant Industry Archive |
| 5264085 |
Symptoms |
|
Division of Plant Industry Archive |
| 9000020 |
Symptoms |
black stems |
Jean L. Williams-Woodward |
| 9000021 |
Symptoms |
cut black stem |
Jean L. Williams-Woodward |
| 9000024 |
Symptoms |
leaf burn |
Jean L. Williams-Woodward |
| 9000025 |
Symptoms |
leaf scorching |
Jean L. Williams-Woodward |
| 9000029 |
Symptoms |
wilting plant |
Jean L. Williams-Woodward |
| 9000030 |
Symptoms |
yellow leaf |
Jean L. Williams-Woodward |
| 5261092 |
Symptoms |
|
Division of Plant Industry Archive |
| 5261093 |
Symptoms |
|
Division of Plant Industry Archive |
| 5261094 |
Symptoms |
|
Division of Plant Industry Archive |
| 5261095 |
Symptoms |
|
Division of Plant Industry Archive |
| 5258008 |
Symptoms |
|
Division of Plant Industry Archive |
| 5258009 |
Symptoms |
|
Division of Plant Industry Archive |
| 5258010 |
Symptoms |
|
Division of Plant Industry Archive |
| 0162013 |
Symptoms |
Bacterial ooze exuding from eye of potato tuber. |
Central Science Laboratory, Harpenden Archive |
| 0162014 |
Symptoms |
Potato plant in pot showing wilt symptoms. |
Central Science Laboratory, Harpenden Archive |
| 0162015 |
Symptoms |
Typical brown discoloration of the vascular ring and slime oozing from the infected tissue. Black necrotic tissue is due to secondary rotting. |
Plant Protection Service Archive |
| 0656087 |
Symptoms |
Transverse sections of potato tubers infected by Burkholderia (Pseudomonas) solanacearum showing browning and necrosis of the vascular ring and immediately surrounding tissues. |
Ministry of Agricuilture and Rural Affairs Archive |
| 0725083 |
Symptoms |
Symptoms of Burkholderia (Pseudomonas) solanacearum on a potato plant. |
Plant Protection Service Archive |
| 0725084 |
Symptoms |
External symptoms of potato tuber infected by Burkholderia (Pseudomonas) solanacearum. |
Plant Protection Service Archive |
| 1234078 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1234079 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1234115 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1234116 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1234208 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1235087 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1235088 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1235089 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1235093 |
Symptoms |
|
Clemson University - USDA Cooperative Extension Slide Series |
| 1265008 |
Symptoms |
Wilting and mortality of Americana Cherry Rose variety of Pelargonium x hortorum |
USDA APHIS PPQ Archive |
| 1265009 |
Symptoms |
Yellowing symptom (chlorosis) of Americana Pink II variety of Pelargonium x hortorum |
USDA APHIS PPQ Archive |
| 1265010 |
Symptoms |
Wilting and mortality (necrosis) of Bright Red variety of Pelargonium x hortorum |
USDA APHIS PPQ Archive |
| 1265011 |
Symptoms |
Wilting, chlorosis and necrosis due to Ralstonia solanacearum infection of geranium |
USDA APHIS PPQ Archive |
| 1265012 |
Symptoms |
One plant has been killed by Ralstonia solanacearum and another is showing early wilt symptoms in this 10-inch basket |
USDA APHIS PPQ Archive |
| 1402041 |
Symptoms |
The first symptom of this bacterial disease is the drooping of one or two leaves which may recover at night. Only half of a leaf may wilt initially. Leaves on one sides of the plant wilt first, while leaves on the other side appear normal. This unilateral wilting is very characteristic. Affected leaves become light green to yellow and occasionally appear scaled. Eventually most or all of the roots become blackened and decay. Infected roots become soft and slimy if adequate water is present. Tan or brown discoloration develops in the vascular tissue just beneath the bark. Pith and cortex also become discolored when involved. Longitudinal sections through affected stalks have narrow, brown lines in the xylem tissue nearest the pith. A slimy substance often oozes from a stalk cut in cross section. If a stalk segment containing discolored vascular tissue is placed in a clear container of water, milky strands stream from the edge of the tissue. |
R.J. Reynolds Tobacco Company Slide Set |
| 1402042 |
Symptoms |
The first symptom of this bacterial disease is the drooping of one or two leaves which may recover at night. Only half of a leaf may wilt initially. Leaves on one sides of the plant wilt first, while leaves on the other side appear normal. This unilateral wilting is very characteristic. Affected leaves become light green to yellow and occasionally appear scaled. Eventually most or all of the roots become blackened and decay. Infected roots become soft and slimy if adequate water is present. Tan or brown discoloration develops in the vascular tissue just beneath the bark. Pith and cortex also become discolored when involved. Longitudinal sections through affected stalks have narrow, brown lines in the xylem tissue nearest the pith. A slimy substance often oozes from a stalk cut in cross section. If a stalk segment containing discolored vascular tissue is placed in a clear container of water, milky strands stream from the edge of the tissue. |
R.J. Reynolds Tobacco Company Slide Set |
| 1436047 |
Symptoms |
Wilt symptoms produced are similar to those caused by black shank. The leaves do not yellow, but wilt suddenly. Discolored tissue will be evident beneath the outer layer of the stem. The central portion of the stem will be darkened but not divided into disks as with black shank. |
Clemson University - USDA Cooperative Extension Slide Series |
| 1436048 |
Symptoms |
The first symptom of this bacterial disease is the drooping of one or two leaves which may recover at night. Only half of a leaf may wilt initially. Leaves on one sides of the plant wilt first, while leaves on the other side appear normal. This unilateral wilting is very characteristic. Affected leaves become light green to yellow and occasionally appear scaled. Eventually most or all of the roots become blackened and decay. Infected roots become soft and slimy if adequate water is present. Tan or brown discoloration develops in the vascular tissue just beneath the bark. Pith and cortex also become discolored when involved. Longitudinal sections through affected stalks have narrow, brown lines in the xylem tissue nearest the pith. A slimy substance often oozes from a stalk cut in cross section. If a stalk segment containing discolored vascular tissue is placed in a clear container of water, milky strands stream from the edge of the tissue. |
Clemson University - USDA Cooperative Extension Slide Series |
| 1436100 |
Symptoms |
showing cut section of stem |
Clemson University - USDA Cooperative Extension Slide Series |
