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Crops and Soils Bulletin June 2023: Assessing Mycotoxin Risks

20 June 2023

This article is produced as a part of the FAS Crops & Soils Bulletin. Subscribe now to receive the full report in your inbox monthly.

All wheat entering the food chain must have a risk assessment for mycotoxins completed and the mycotoxin risk assessment can be found on the AHDB website at this link 

The risk of mycotoxins is strongly driven by rainfall over the flowering and ripening growth stages in wheat, and a fungicide applied in a well-timed manner can reduce the risk.  The efficacy of fungicides against ear blight drops dramatically a few days before or after an infection event so an optimum timing is to apply the ear spray in the 24-48 hours around a splash event which carries the fusarium onto the flowering ear.  Once the crop gets in to ripening (post flowering) the yield benefits from a T3 diminish significantly.  The ear spray options are based around azoles fungicides and pay particular attention to final application dates and harvest interval restrictions for ear sprays.   

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