Cereals: Barley: Loose
Smut (Ustilago nuda)
Pub 812: Field Crop Protection
Guide >
Chapter
4: Cereals > Barley: Loose Smut
Field Crop Protection Guide 2011-2012, Order
2011-2012 publication
Table of Contents
- Integrated Pest Management Options
- tebuconazole + thiram– Raxil T
- tebuconazole + metalaxyl - Raxil MD
- triadimenol – Baytan 30
- carbathiin + thiram – Vitaflo 280
- triticonazole + thiram – Gemini
- ipconazole - Rancona Apex
- Related links...
Integrated Pest Management Options
Seed Treatment
Infection occurs during flowering. Conditions that promote the
disease are wet, cloudy weather and moderate temperatures 16°C-22°C
(60°F-72°F). Sow pedigree seed to ensure that seed is not
infected. Moist weather at flowering promotes this disease. Disease
incidence has been increasing in Ontario where no seed treatments
are beneficial in reducing loose smut infection.
| Active ingredient |
tebuconazole + thiram |
| Trade name |
Raxil T |
| Rate (product) |
225 mL per 100 kg seed |
| Comments |
Do not graze or feed livestock on treated areas for 4 weeks
after planting. |
| Active ingredient |
tebuconazole + metalaxyl |
| Trade name |
Raxil MD |
| Rate (product) |
300 mL per 100 kg seed |
| Comments |
For both commercial seed treatment plants and on-farm treatment
with conventional seed treating equipment that can accurately
control application rates and provides good distribution of
chemical onto the seed in the mixing chamber. Uniform application
is necessary to ensure seed safety and best disease control.
Do not graze or feed livestock on treated areas for 4 weeks
after planting. |
| Active ingredient |
triadimenol |
| Trade name |
Baytan 30 |
| Rate (product) |
50 mL per 100 kg seed |
| Comments |
Must be diluted with water prior to treatment of seed to ensure
uniform coverage. Treated seed will sometimes emerge more slowly
than untreated seed. Avoid late seeding of winter cereals. Do
not graze or feed livestock on treated areas for 40 days after
planting. |
| Active ingredient |
carbathiin + thiram |
| Trade name |
Vitaflo 280 |
| Rate (product) |
230-330 mL per 100 kg seed |
| Comments |
Do not graze or feed livestock on treated areas for 6 weeks
after planting. |
| Active ingredient |
triticonazole + thiram |
| Trade name |
Gemini |
| Rate (product) |
360 mL per 100 kg seed |
| Comments |
For both commercial seed treatment plants and on-farm treatment
using standard gravity flow- or mist-type seed treatment equipment.
May also be used in treat-on-the-go seeder. |
| Active ingredient |
ipconazole |
| Trade name |
Rancona Apex |
| Rate (product) |
325-433 mL per 100 kg seed |
| Comments |
Use higher rate for highly infected seed lots only. Do not
graze or feed livestock on treated areas for 30 days after planting. |
Related links...
