The scientific journey to eradicate smuts on the prairies

Abstract

The cultivation of wheat in North America represents a relatively recent endeavour, spanning a mere 150 years. This relatively brief period of its recent cultivation has allowed the opportunity to document the threats and diseases farmers had to face from the start. In this minireview, our primary objective is to provide a detailed exploration of the historical context on how we end up effectively managing what was once among the most destructive and hard to manage diseases affecting wheat, namely, common bunt (covered smut). This review delves into the early research efforts dedicated to understanding the biology of the causal pathogens and developing effective management approaches. These efforts encompass a wide spectrum of potential methods, ranging from seed treatments to cropping practices, and the development of genetic resistance. Throughout this exploration, we will also spotlight the remarkable scientific success story that has unfolded within the Canadian context. In essence, this review aims to provide a scientific examination of the history, challenges and innovative approaches associated with mitigating the impact of bunt pathogens on wheat cultivation in North America, and future challenges.