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Bayer Assist

For friendly informed advice about Bayer CropScience products, please call Bayer Assist free from UK landlines on:

0845 6092266

Alternatively, call us on:
01223 226644

(0900-1715 weekdays)

Seed Treatment 

Redigo  

Redigo

Redigo is the new single-purpose seed-treatment for winter wheat in the Bayer CropScience seed-treatments range.

Redigo contains the new fungicide prothioconazole and provides equivalent or better activity than Sibutol, with a lower amount of a.i. on the seed. Redigo is highly effective against all the major seed borne diseases of wheat.

Formulation: Prothioconazole 100 FS
Rate of application: 1.0 litre per tonne of seed for use on winter and spring wheat

Fusarium seedling blight/stem base browning
The levels of Fusarium infection in seed stocks can vary widely from year to year; infection depends on weather conditions at the time of flowering and seed initiation in the mother crop. Infection levels on the seed of 25% or greater are regarded as potentially damaging to the subsequent crop, with the levels of damage increasing when the germinating crop is under stress from cold and wet weather conditions typically found with late drillings of winter wheat and early drilling of spring wheat.

Redigo improves crop establishment and the health of stem bases by reducing the symptoms of seedling blight and stem base browning caused by Microdochium nivale and Fusarium culmorum.

Bunt
Redigo controls bunt caused by seed- or soil-borne infections of Tilletia caries.
Redigo is highly effective against both the seed- and soil-borne transmission methods of bunt. The seed treatment forms a protective zone around the germinating seedling that prevents the mycelial growth from bunt spores on the seed or in the soil invading the coleoptile growing from the seed.

The results (right) were from trials where highly infected seed or soil substrate was used in conditions that were far more testing than are likely to be found naturally. Redigo applied at the recommended rate gave complete control of both seed- and soil-borne bunt infections.

Loose smut
Redigo controls loose smut caused by Ustilago nuda fsp.tritici.

Loose smut in wheat is relatively rare in commercial crops; however, it remains a principal measure of seed quality in the UK and therefore control is important.

Applied at recommended rates, Redigo was very effective in controlling the disease and at least as effective as the commercial standard treatments.

Ergot
There is no label recommendation for the control of ergot on wheat with Redigo. However, it can be used in an integrated strategy to reduce ergot infestation (along with grass weed host removal from the crop and field margins and inversion tillage) as laboratory and field studies have shown it to be active against the fungus Claviceps purpurea.

Cost-effectiveness
In wheat trials, where no seed- or soil-borne disease infections occurred, Redigo gave, on average, a 0.7% yield benefit. The effect of this extra yield on the apparent cost of the seed treatment is shown below for two crop value levels at a range of seed rates.