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Isolation and identification of the pathogens responsible for the FHB symptoms has now been completed for 66% of the samples, with the non-toxin producing Microdochium nivale still causing the majority of symptoms.

High levels of contamination by Microdochium species will cause reductions in grain quality and yield. Of the two deoxynivalenol producing species, Fusarium graminearum is predominating. 

Preliminary results indicate that an average of 40% of crops nationally have been infected by F. graminearum and there is therefore a high risk from mycotoxin contamination. However, the level of F. graminearum is variable across the different regions indicating that the risk from mycotoxin contamination will also vary.

For full results by region click here

For more on Fusrium Head Blight see the latest Agronomy Report

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