New race of Bremia in Lettuce, BI: 33EU identified and denominated in Europe

A press release was made on 1st May 2017 by the International Bremia Evaluation Board for the EU (IBEB-EU) stating that it “….has evaluated all Bremia races found in 2016 and earlier. Once again, many outbreaks of Bremia were caused by Bremia races with only local importance. However, one race spread in most European countries and IBEB-EU decided to denominate this isolate as the new race BI: 33EU. The Board emphasizes the importance of chemical control and hygiene measures in addition to the use of resistant varieties to prevent the development of new races.”

BI: 33EU was widely spread in France and was also found in Germany, the Netherlands, U.K., Scandinavia, and Belgium. It is similar to BI: 29EU but is also breaking a few additional resistances.

Agility Agriculture supply Seminis branded lettuce varieties which offer broad resistance patterns. We are pleased to confirm that these varieties have been tested against the new race and many have been confirmed to provide high resistance to BI: 33EU.

Proper hygiene practices, such as the removal of debris and diseased plants, will always reduce the spread of Bremia in lettuce crops. Resistance to BI: 16-33EU does not mean that a variety offers total resistance to Bremia and should not be understood as a full insurance against Bremia. Fungicide application and appropriate crop husbandry will help prevent the development of new Bremia races.

For more detailed information about the Seminis lettuce varieties that we supply, please contact us:

Tel: +44 (0)2380 454676