Selecting crop sequences and developing a risk model to mitigate FHB in western Canadian cereal production
Fusarium head blight (FHB) is a fungal disease affecting cereal crops in Canada that reduces productivity and produces mycotoxins in the grain. This fungal disease is caused by a number of Fusarium species of which Fusarium graminearum is considered the most important because of its abundance, its toxin producing ability and its impact on grain quality and yield. Currently the most important practices recommended to cereal growers for FHB management include non-host crops in the rotation, resistant cultivars, and application of fungicides.
Cultural management of FHB of cereals, in particular crop rotation or the sequence of crops grown, can play a major role in an integrated management approach to FHB (Gilbert and Haber 2013), as well as many other pest and agronomic issues. However, there are no studies in Canada that clearly indicate the impact on FHB of various cereals due to the previous crop(s) cultivated.
The goal of this research is to improve yield and quality in Canada through the implementation of effective crop sequences to mitigate FHB.