Management of Herbicide-Resistant Common Lambsquarters, Chenopodium album , in Atlantic Canada

Abstract

Common lambsquarters ( Chenopodium album ) is one of the most troublesome annual broadleaf weeds in potato production in Atlantic Canada. Historically controlled by a combination of cultivation and herbicides, potato producers now often rely on a single herbicide application to provide season long control of common lambsquarters. The reliance on a few herbicides for common lambsquarters control has led to widespread incidence of herbicide resistance in this species, negatively impacting potato yield. This case study explores common lambsquarters’ biology, development of herbicide resistance, and the evolving management practices including chemical, cultural, and mechanical to help mitigate its impact on potato productivity. © The Author 2024