| 1574035 |
southern blight |
Sclerotium rolfsii |
Close-up of Sclerotium rolfsii on the surface of pumpkin fruit showing a classic mycelial fan and sclerotia. The small round structures are sclerotia of the fungus and the darker sclerotia are older. September 1997 |
| 1574039 |
southern blight |
Sclerotium rolfsii |
Extreme close up of sclerotia of S. rolfsii. September 1997 |
| 1574037 |
southern blight |
Sclerotium rolfsii |
Sclerotium rolfsii on the surface of pumpkin fruit. Small round structures are sclerotia of the fungus and the darker sclerotia are older. Note that infection begins where soil and fruit make contact. September 1997 |
| 1574038 |
southern blight |
Sclerotium rolfsii |
Close-up of Sclerotium rolfsii on the surface of pumpkin fruit showing a classic mycelial fan and sclerotia. The small round structures are sclerotia of the fungus and the darker sclerotia are older. September 1997 |
| 1574036 |
southern blight |
Sclerotium rolfsii |
Close-up of Sclerotium rolfsii on the surface of pumpkin fruit. Small round structures are sclerotia of the fungus and the darker sclerotia are older. September 1997 |
| 1574034 |
southern blight |
Sclerotium rolfsii |
Close-up of Sclerotium rolfsii on the surface of pumpkin fruit. Small round structures are sclerotia of the fungus and the darker sclerotia are older. September 1997 |
| 1573983 |
southern blight |
Sclerotium rolfsii |
Close up of mycelial fan on lower stem. Cultivar = King Arthur. September 1997 |
| 1573639 |
southern blight |
Sclerotium rolfsii |
Close-up of infected bulb showing how soil adheres to mycelium around bulb. July 1997 |
| 1573405 |
southern blight |
Sclerotium rolfsii |
Ropey mycelium of Sclerotium rolfsii on the lower stem are diagnostic of the disease. July 1997 |
| 1573408 |
southern blight |
Sclerotium rolfsii |
Ropey mycelium of Sclerotium rolfsii on the lower stem are diagnostic of the disease. July 1997 |
| 1573409 |
southern blight |
Sclerotium rolfsii |
Ropey mycelium of Sclerotium rolfsii on the lower stem are diagnostic of the disease. July 1997 |
| 1573410 |
southern blight |
Sclerotium rolfsii |
Ropey mycelium of Sclerotium rolfsii on the lower stem are diagnostic of the disease. July 1997 |
| 1573406 |
southern blight |
Sclerotium rolfsii |
Cross-section through the lower stem of banana pepper shows the degree of tissue discoloration caused by the disease. July 1997 |
| 1573407 |
southern blight |
Sclerotium rolfsii |
Cross-section through the lower stem of banana pepper shows the degree of tissue discoloration caused by the disease. July 1997
|
| 1573402 |
southern blight |
Sclerotium rolfsii |
Southern blight girdles the lower stem and causes the plant to die as in this banana pepper. June 1997 |
| 1573391 |
southern blight |
Sclerotium rolfsii |
Onion bulb infected with Sclerotium rolfsii causes soil to adhere to the bulb. The pathogen will grow out after a 24-hour incubation in a moist chamber allowing for rapid identification of the causal agent. June 1997 |
| 1573390 |
southern blight |
Sclerotium rolfsii |
Close-up of Sclerotium rolfsii mycelium after 24 hour incubation at room temperature in a moist chamber. June 1997 |
| 1573389 |
southern blight |
Sclerotium rolfsii |
Sclerotium rolfsii after 24 hour incubation at room temperature in a moist chamber. June 1997 |
| 1568115 |
southern blight |
Sclerotium rolfsii |
|
| 1572894 |
damping-off |
|
Pythium damping-off in young cantaloupe seeding. May 1997? |
| 1572893 |
damping-off |
|
Pythium damping-off in young cantaloupe seeding. May 1997 |
| 5480096 |
southern blight |
Sclerotium rolfsii |
|
| 5480097 |
southern blight |
Sclerotium rolfsii |
|
| 5480098 |
southern blight |
Sclerotium rolfsii |
|
| 5472513 |
southern blight |
Sclerotium rolfsii |
Sclerotium rolfsii growing on potato dextrose agar (PDA) |
| 5472512 |
southern blight |
Sclerotium rolfsii |
Sclerotium rolfsii growing on potato dextros agar (PDA) |
| 1568067 |
southern blight |
Sclerotium rolfsii |
|
| 1568068 |
southern blight |
Sclerotium rolfsii |
|
| 1568116 |
southern blight |
Sclerotium rolfsii |
|
| 1568117 |
southern blight |
Sclerotium rolfsii |
|
| 1568119 |
southern blight |
Sclerotium rolfsii |
|
| 5469582 |
damping-off |
|
|
| 5469589 |
damping-off |
|
|
| 5469584 |
damping-off |
|
|
| 5469585 |
damping-off |
|
|
| 5469586 |
damping-off |
|
|
| 5469587 |
damping-off |
|
|
| 5469588 |
damping-off |
|
|
| 5469583 |
damping-off |
|
|
| 5459295 |
southern blight |
Sclerotium rolfsii |
Mature sclerotia forming in culture |
| 5459294 |
southern blight |
Sclerotium rolfsii |
Sclerotia at base of petiole |
| 5459293 |
southern blight |
Sclerotium rolfsii |
Young sclerotia forming in culture- six days |
| 5459291 |
southern blight |
Sclerotium rolfsii |
Surface of sclerotium |
| 5459292 |
southern blight |
Sclerotium rolfsii |
Symptomatic leaf dying from petiole infection |
| 5459290 |
southern blight |
Sclerotium rolfsii |
Hyphal clamp connection in culture |
| 5459289 |
southern blight |
Sclerotium rolfsii |
Hyphal clamp connection in culture |
| 5459288 |
southern blight |
Sclerotium rolfsii |
Hyphal clamp connection in culture |
| 5459287 |
southern blight |
Sclerotium rolfsii |
Sclerotia at base of petiole |
| 5459286 |
southern blight |
Sclerotium rolfsii |
Sclerotia at base of petiole |
| 5455002 |
southern blight |
Sclerotium rolfsii |
Three day old culture of Sclerotium rolfsii on quarter-strength potato dextrose agar (1/4 PDA). |
| 5455003 |
southern blight |
Sclerotium rolfsii |
Seven day old culture of Sclerotium rolfsii on quarter-strength potato dextrose agar (1/4 PDA). Sclerotia are beginning to form. |
| 5455004 |
southern blight |
Sclerotium rolfsii |
Seven day old culture of Sclerotium rolfsii on potato dextrose agar (PDA). Sclerotia are beginning to form. |
| 5455005 |
southern blight |
Sclerotium rolfsii |
Seven day old culture of Sclerotium rolfsii on potato dextrose agar (PDA). Sclerotia are beginning to form. |
| 5455006 |
southern blight |
Sclerotium rolfsii |
Seven day old culture of Sclerotium rolfsii on potato dextrose agar (PDA). Sclerotia are beginning to form. |
| 5455007 |
southern blight |
Sclerotium rolfsii |
Seven day old culture of Sclerotium rolfsii on quarter-strength potato dextrose agar (1/4 PDA). Sclerotia are beginning to form. |
| 5455008 |
southern blight |
Sclerotium rolfsii |
Seven day old culture of Sclerotium rolfsii on quarter-strength potato dextrose agar (1/4 PDA). Sclerotia are beginning to form. |
| 5436389 |
southern blight |
Sclerotium rolfsii |
|
| 5436390 |
southern blight |
Sclerotium rolfsii |
|
| 5436391 |
southern blight |
Sclerotium rolfsii |
|
| 5436392 |
southern blight |
Sclerotium rolfsii |
|
| 5407843 |
southern blight |
Sclerotium rolfsii |
Close-up of mycelia and sclerotia of Sclerotium rolfsii on lower stem and roots of apple tree |
| 5407844 |
southern blight |
Sclerotium rolfsii |
Mycelia and sclerotia of Sclerotium rolfsii on lower trunk and roots of apple tree |
| 1234196 |
southern blight |
Sclerotium rolfsii |
|
| 1436013 |
southern blight |
Sclerotium rolfsii |
|
| 1436109 |
southern blight |
Sclerotium rolfsii |
|
| 1234183 |
southern blight |
Sclerotium rolfsii |
|
| 1235094 |
southern blight |
Sclerotium rolfsii |
|
| 1436066 |
southern blight |
Sclerotium rolfsii |
|
| 1234209 |
southern blight |
Sclerotium rolfsii |
|
| 1235117 |
southern blight |
Sclerotium rolfsii |
|
| 1235129 |
southern blight |
Sclerotium rolfsii |
|
| 1402046 |
southern blight |
Sclerotium rolfsii |
With this fungal disease, leaves of infected plants rapidly turn yellow, wilt, and die. The dried, brown leaves hang down the dying stalk. The root system remains healthy prior to the death of the plant. Infected plants are usually scattered singly through the field or occur in small groups. Symptoms may be confused with those of black shank. During warm, moist weather, the fungus produces a white cottony growth from the discolored stalk lesions. Discing of the pith similar to black shank may occur, but it is much lighter in color and not as well-organized. Infected stalks easily break at the stalk lesion. |
| 1402048 |
southern blight |
Sclerotium rolfsii |
The base of the stalk shows a brown, sunken lesion or dead area, lighter in color than the stalk lesion caused by black shank. The dead area is stingy, and the outer layer of stalk often has a papery consistency. |
| 1402047 |
southern blight |
Sclerotium rolfsii |
The fungus produces small, round structures (sclerotia) on the surface of the stalk lesion. These are white at first, turning brown with maturity, and resemble mustard seed. |
| 5430064 |
southern blight |
Sclerotium rolfsii |
Infected lower stem showing white, mycelial fan and mustard seed-sized sclerotia. |
| 5430065 |
southern blight |
Sclerotium rolfsii |
Infected lower stem showing mustard seed-sized sclerotia. |
| 5430066 |
southern blight |
Sclerotium rolfsii |
Infected lower stem showing close-up of mustard seed-sized sclerotia. |
| 5429795 |
southern blight |
Sclerotium rolfsii |
fungal growth on plant tissue in moist chamber after 5 days |
| 1235095 |
southern blight |
Sclerotium rolfsii |
|
| 4824094 |
southern blight |
Sclerotium rolfsii |
At base of foliage. |
| 4824095 |
southern blight |
Sclerotium rolfsii |
Discolored foliage of infected seedlings. |
| 5411387 |
southern blight |
Sclerotium rolfsii |
Mycelia of the fungus at the base of the plant |
| 5411388 |
southern blight |
Sclerotium rolfsii |
Mycelia of the fungus at the base of the plant |
| 5411389 |
southern blight |
Sclerotium rolfsii |
Mycelia of the fungus at the base of the plant |
| 5411390 |
southern blight |
Sclerotium rolfsii |
Mycelia of the fungus at the base of the plant |
| 1563480 |
southern blight |
Sclerotium rolfsii |
The dry, crusty, circular lesions with sharply defined margins can be popped out. Infection is shallow, 1-5mm. Adjoining tissue is bitter. (Oct78, cv.Jewel) |
| 1563481 |
southern blight |
Sclerotium rolfsii |
The circular lesions are crusty, 1-5mm deep, with sharply defined margin and can be popped out. Infected tissue is bitter. The lesions can be confused with those of Pox. (cv.Jewel, Oct78) |
| 5411478 |
southern blight |
Sclerotium rolfsii |
|
| 5423957 |
southern blight |
Sclerotium rolfsii |
Sugarbeet wilting due to southern blight. |
| 5423958 |
southern blight |
Sclerotium rolfsii |
Mycelium of Sclerotium rolfsii evident at the base of a wilted sugarbeet. |
| 5423959 |
southern blight |
Sclerotium rolfsii |
Mycelium and sclerotia of Sclerotium rolfsii on an infected sugarbeet. |
| 5423960 |
southern blight |
Sclerotium rolfsii |
Masses of sclerotia of Sclerotium rolfsii on an infected sugarbeet. |
| 1534056 |
southern blight |
Sclerotium rolfsii |
|
| 1534054 |
southern blight |
Sclerotium rolfsii |
Tomato transplants |
| 1534041 |
southern blight |
Sclerotium rolfsii |
|
| 1534040 |
southern blight |
Sclerotium rolfsii |
bell pepper |
| 1534025 |
southern blight |
Sclerotium rolfsii |
|
| 1534024 |
southern blight |
Sclerotium rolfsii |
|
| 1534023 |
southern blight |
Sclerotium rolfsii |
|
| 5389675 |
southern blight |
Sclerotium rolfsii |
|
| 5389676 |
southern blight |
Sclerotium rolfsii |
|
| 5389677 |
southern blight |
Sclerotium rolfsii |
|
| 5389678 |
southern blight |
Sclerotium rolfsii |
|
| 5389679 |
southern blight |
Sclerotium rolfsii |
|
| 5389680 |
southern blight |
Sclerotium rolfsii |
|
| 5389681 |
southern blight |
Sclerotium rolfsii |
|
| 5389682 |
southern blight |
Sclerotium rolfsii |
|
| 5389683 |
southern blight |
Sclerotium rolfsii |
|
| 1525377 |
southern blight |
Sclerotium rolfsii |
|
| 1525378 |
southern blight |
Sclerotium rolfsii |
|
| 1525379 |
southern blight |
Sclerotium rolfsii |
|
| 1525380 |
southern blight |
Sclerotium rolfsii |
|
| 1525381 |
southern blight |
Sclerotium rolfsii |
|
| 1525382 |
southern blight |
Sclerotium rolfsii |
|
| 1525390 |
southern blight |
Sclerotium rolfsii |
Sclerotium rolfsii on Larkspur |
| 1525391 |
southern blight |
Sclerotium rolfsii |
Sclerotium rolfsii on Larkspur |
| 1525671 |
southern blight |
Sclerotium rolfsii |
|
| 1525672 |
southern blight |
Sclerotium rolfsii |
|
| 1525674 |
southern blight |
Sclerotium rolfsii |
|
| 1525675 |
southern blight |
Sclerotium rolfsii |
|
| 1525676 |
southern blight |
Sclerotium rolfsii |
|
| 1525673 |
southern blight |
Sclerotium rolfsii |
|
| 1525677 |
southern blight |
Sclerotium rolfsii |
|
| 5360371 |
southern blight |
Sclerotium rolfsii |
Cultures of the sclerotia of Athelia rolfsii (Sclerotium rolfsii), the causal fungus of beans southern blight, in the laboratory. |
| 5336052 |
southern blight |
Sclerotium rolfsii |
|
| 5383180 |
southern blight |
Sclerotium rolfsii |
Sclertoia and mycelium on culture media Acid potato dextrose agar (APDA). Isolated from apple (Malus domestica) |
| 5383181 |
southern blight |
Sclerotium rolfsii |
Sclertoia and mycelium on culture media Acid potato dextrose agar (APDA). Isolated from apple (Malus domestica) |
| 5383177 |
southern blight |
Sclerotium rolfsii |
Roots |
| 5383178 |
southern blight |
Sclerotium rolfsii |
Roots |
| 5369062 |
southern blight |
Sclerotium rolfsii |
Infected roots and lower stem showing tan, mustard seed-sized sclerotia. |
| 5369063 |
southern blight |
Sclerotium rolfsii |
Infected roots and lower stem showing mycelial fan at the upper edge of infection. |
| 5333042 |
southern blight |
Sclerotium rolfsii |
|
| 5333043 |
southern blight |
Sclerotium rolfsii |
|
| 5333056 |
southern blight |
Sclerotium rolfsii |
sclerotia formed in moist chamber Type is Laboratory |
| 5333055 |
southern blight |
Sclerotium rolfsii |
|
| 5294048 |
southern blight |
Sclerotium rolfsii |
|
| 5259008 |
southern blight |
Sclerotium rolfsii |
|
| 5356837 |
southern blight |
Sclerotium rolfsii |
Potato plant showing symptoms of stem rot, caused by infection with Sclerotium rolfsii. |
| 5357530 |
southern blight |
Sclerotium rolfsii |
A bean plant showing symptoms of the southern wilt disease caused by the fungus Sclerotium rolfsii in the field. |
| 1525011 |
southern blight |
Sclerotium rolfsii |
|
| 5360385 |
southern blight |
Sclerotium rolfsii |
Bean plants with the sclerotia of Athelia rolfsii (Sclerotium rolfsii), the causal fungus of beans southern blight in the field. |
| 1496351 |
southern blight |
Sclerotium rolfsii |
Southern stem blight on apple |
| 1496352 |
southern blight |
Sclerotium rolfsii |
Southern stem blight on apple |
| 1496355 |
southern blight |
Sclerotium rolfsii |
Southern blight on apple |
| 1496357 |
southern blight |
Sclerotium rolfsii |
Southern blight on apple |
| 5264081 |
southern blight |
Sclerotium rolfsii |
|
| 5264075 |
southern blight |
Sclerotium rolfsii |
|
| 5264074 |
southern blight |
Sclerotium rolfsii |
|
| 5264076 |
southern blight |
Sclerotium rolfsii |
|
| 5264077 |
southern blight |
Sclerotium rolfsii |
|
| 5261085 |
southern blight |
Sclerotium rolfsii |
|
| 5261086 |
southern blight |
Sclerotium rolfsii |
|
| 5261087 |
southern blight |
Sclerotium rolfsii |
|
| 5261084 |
southern blight |
Sclerotium rolfsii |
|
| 5262003 |
southern blight |
Sclerotium rolfsii |
|
| 5259026 |
southern blight |
Sclerotium rolfsii |
|
| 5259027 |
southern blight |
Sclerotium rolfsii |
|
| 5259006 |
southern blight |
Sclerotium rolfsii |
|
| 5259007 |
southern blight |
Sclerotium rolfsii |
|
| 5259009 |
southern blight |
Sclerotium rolfsii |
|
| 5259010 |
southern blight |
Sclerotium rolfsii |
|
| 5259011 |
southern blight |
Sclerotium rolfsii |
|
| 5259012 |
southern blight |
Sclerotium rolfsii |
|
| 5259013 |
southern blight |
Sclerotium rolfsii |
|
| 5259014 |
southern blight |
Sclerotium rolfsii |
|
| 5259015 |
southern blight |
Sclerotium rolfsii |
|
| 5259016 |
southern blight |
Sclerotium rolfsii |
|
| 5259017 |
southern blight |
Sclerotium rolfsii |
|
| 5259018 |
southern blight |
Sclerotium rolfsii |
|
| 5259019 |
southern blight |
Sclerotium rolfsii |
|
| 5259020 |
southern blight |
Sclerotium rolfsii |
|
| 5259021 |
southern blight |
Sclerotium rolfsii |
|
| 5259022 |
southern blight |
Sclerotium rolfsii |
|
| 5259023 |
southern blight |
Sclerotium rolfsii |
|
| 5259029 |
southern blight |
Sclerotium rolfsii |
|
| 5259030 |
southern blight |
Sclerotium rolfsii |
|
| 5258094 |
southern blight |
Sclerotium rolfsii |
|
| 5258095 |
southern blight |
Sclerotium rolfsii |
|
| 5258096 |
southern blight |
Sclerotium rolfsii |
|
| 5258097 |
southern blight |
Sclerotium rolfsii |
|
| 5258098 |
southern blight |
Sclerotium rolfsii |
|
| 5258099 |
southern blight |
Sclerotium rolfsii |
|
| 5258100 |
southern blight |
Sclerotium rolfsii |
|
| 5259001 |
southern blight |
Sclerotium rolfsii |
|
| 5259002 |
southern blight |
Sclerotium rolfsii |
|
| 5259003 |
southern blight |
Sclerotium rolfsii |
|
| 5259004 |
southern blight |
Sclerotium rolfsii |
|
| 5259005 |
southern blight |
Sclerotium rolfsii |
|
| 5259028 |
southern blight |
Sclerotium rolfsii |
|
| 5259024 |
southern blight |
Sclerotium rolfsii |
|
| 5259025 |
southern blight |
Sclerotium rolfsii |
|
| 5258093 |
southern blight |
Sclerotium rolfsii |
|
| 5259031 |
southern blight |
Sclerotium rolfsii |
|
| 5265045 |
southern blight |
Sclerotium rolfsii |
Sclerotium rolsii on container grown apple |
| 5077063 |
southern blight |
Sclerotium rolfsii |
Rotting of lower stem resulting in total collapse of the plant. Small orange and white sclerotia (round fruiting bodies) can sometimes be observed at the soil line in later stages.=org |
| 5077071 |
southern blight |
Sclerotium rolfsii |
Lower stem collapses. White mycelial growth and small tan to brown, round sclerotia can be observed. |
| 5077073 |
southern blight |
Sclerotium rolfsii |
Fungus causes soil to adhere to the carrot root. |
| 4824092 |
southern blight |
Sclerotium rolfsii |
Infected seedlings. |
| 4824093 |
southern blight |
Sclerotium rolfsii |
Infected seedlings. |
