Silver scurf is caused by the fungus, Helminthosporium solani. It is spread primarily by infected seed.
Scientific Name:
Helminthosporium solani
Type:
Diseases & Viruses
Control Options for Silver scurf on Potatoes
| Material | Application per Acre | REI (hours) |
PHI (days) |
MOA | Efficacy | Notes |
|---|---|---|---|---|---|---|
|
thiamethoxam + fludioxonil + difenoconazole (Cruiser Maxx Potato Extreme) |
0.31 fl oz/100 lb seed | 12 h | - | IRAC 4A; FRAC 12, 3 | G | It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process. |
|
thiamethoxam + fludioxonil (Cruiser Maxx Potato Insecticide and Fungicide) |
0.19 to 0.27 fl oz/100 lb seed | 12 h | - | IRAC 4A; FRAC 12 | G | It will limit the spread of H. solani (causal agent of silver scurf disease) from infected seed during the cutting and planting process. |
|
thiamethoxam + fludioxonil + difenoconazole + sedaxane (Cruiser Maxx Vibrance Potato) |
0.5 fl oz/100 lb seed | 12 h | - | IRAC 4A; FRAC 12, 3, 7 | G | It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process. |
|
manxozeb (Dithane F-45 Rainshield (seed treatment)) |
See Label | 24 hr | - | M3 | F | It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process. Use Rate: 1.6 to 2.5 fl oz product/100 lb seed. |
|
fludioxonil (Maxim 4FS) |
See Label | 12 hr | - | 12 | F | It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process. Use Rate: 0.08 fl oz product/100 lb seed. |
Application per Acre
0.31 fl oz/100 lb seed
REI (hours)
12 h
PHI (days)
—
MOA
IRAC 4A; FRAC 12, 3
More details
Efficacy
G
Notes
It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process.
Application per Acre
0.19 to 0.27 fl oz/100 lb seed
REI (hours)
12 h
PHI (days)
—
MOA
IRAC 4A; FRAC 12
More details
Efficacy
G
Notes
It will limit the spread of H. solani (causal agent of silver scurf disease) from infected seed during the cutting and planting process.
Application per Acre
0.5 fl oz/100 lb seed
REI (hours)
12 h
PHI (days)
—
MOA
IRAC 4A; FRAC 12, 3, 7
More details
Efficacy
G
Notes
It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process.
Application per Acre
See Label
REI (hours)
24 hr
PHI (days)
—
MOA
M3
More details
Efficacy
F
Notes
It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process. Use Rate: 1.6 to 2.5 fl oz product/100 lb seed.
More details
Efficacy
F
Notes
It will limit the spread of H. solani (the causal agent of silver scurf disease) from infected seed during the cutting and planting process. Use Rate: 0.08 fl oz product/100 lb seed.