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Elatus Era gains approval for rust and chocolate spot control in beans

Agronomy Issues
Chocolate spot and rust on beans

Field bean growers can now use the new Syngenta fungicide, Elatus Era, for the control of rust and chocolate spot infections for the rest of this season.  

The approval is timely with PGRO reporting the high threat of rust for spring beans awaiting fungicide applications. Cool wet conditions also increase the risk of chocolate spot.

Click here for the Approval Notice for Elatus Era use in field beans and combining peas

Existing stocks of Elatus Era on farms and in distribution stores, for cereal treatments, can also now be used on field bean and combining pea crops.    

Results of PGRO research and Syngenta trials have shown Elatus Era, containing the new active Solatenol and prothioconazole, provided excellent control of both key diseases in field beans. Elatus Era is renowned for its rust control in cereals.  

The approval permits one application per season at a rate of 0.66 l/ha in field beans and combining peas. Treatment is permitted up to 20% of pods having reached typical length (GS 72).

Click here to download updated Elatus Era directions for use

“Research indicates the active is most effective as a preventative application, to target disease before it gets into the leaf or becomes established in the plant,” advocated Syngenta Technical, Manager Michael Tait. “Particularly with rust that can develop so quickly.”

Rust on beans

For field beans, trials have shown Elatus Era is best used in a two-spray programme, he advised.

PGRO Chief Executive Roger Vickers added: “The decision to allow farmers to apply Elatus Era to field beans immediately will be welcome news to growers. 

“Chemistry which protects the crop from Chocolate Spot and rusts are limited in number, but are essential to maximising yield potential." 

“Throughout trials conducted by the PGRO, Elatus Era has proven very effective against these diseases and we are pleased to see a new option being made available to growers in time for applications this season.” 

Trial results

Results in summer 2020 demonstrated the outstanding efficacy of Elatus Era against bean rust under high pressure in hot, dry weather.

Find out the latest on disease control in beans from the  PGRO Roadshow 2021

PGRO work in Suffolk, for example, showed almost complete control of the disease in all the programmes with Elatus Era at the initial timing, with outstanding results when followed by Amistar.

Bean rust infection and control in the field

In the untreated crop, 45% of leaf area was affected by rust, with the new product programme performing at least 4x better compared to a two-spray boscalid + pyraclostrobin strategy.

Chocolate spot clean up     

Whilst chocolate spot is typically a less serious issue in spring bean crops, compared to over-wintered winter beans, this season’s cool, wet weather has been favourable to its infection.

Assessment of disease levels in the PGRO Suffolk trial indicated optimum results from targeting treatment at the full label rate, advocated Mr Tait.

Watch the PGRO Roadshow webinar on disease control here