Page "Fusarium ear blight" Paragraph 21

To date, sources of resistance conferring complete resistance to FHB have not been identified in wheat.

Quantitative Trait Loci ( QTL ) composed of one or more genes, such as Fhb1 derived from the Chinese wheat cultivar Sumai 3, have been identified in wheat.

However, these genes confer only partial resistance to FHB, and many of the initial sources of resistance were not well adapted to most of the grain production regions of the U. S. While some success has been made in transferring FHB resistance from such exotic sources into adapted cultivars, identification and deployment of FHB resistance already present in local native germplasm and cultivars is providing another means to achieve this goal.

Ultimately, control of FHB, to meet the very low DON limits in wheat grain, will require an integrated approach including development of cultivars having multiple resistance genes and use of fungicides.