Abstract: Downy brome (Bromus tectorum L.), also known as cheatgrass, was introduced into North America from the Mediterranean area of Europe. Downy brome is a major weed problem in winter wheat.
Integrated Management of Feral Rye in Winter Wheat (PNW660) Updated
Abstract: Feral rye (Secale cereale L.), also known as volunteer or cereal rye, is a troublesome weed in winter wheat production systems in the low and intermediate rainfall zones of eastern Washington and Oregon and southern Idaho.
Integrated Management of Jointed Goatgrass in the Pacific Northwest (EB2042E)
Abstract: Jointed goatgrass (Aegilops cylindrica) is an annual invasive grass weed that is particularly troublesome in winter wheat fields in the western United States. The severity of the infestation has increased over the past 50 years in many areas to levels that reduce yield and quality significantly.
Jointed Goatgrass Ecology (EB1932) (pdf)
Abstract: Jointed goatgrass management in winter wheat has been difficult because the genetics and growth patterns of these two species are similar. Knowledge of jointed goatgrass growth characteristics can help producer’s select effective management strategies, as some attributes of jointed goatgrass respond to control practices.
Jointed Goatgrass Genetics (EB1934) (pdf)
Abstract: The common genetic background of wheat and jointed goatgrass makes jointed goatgrass control in winter wheat difficult and increases the chance of successful gene flow, including resistance genes transferring from herbicide-resistant wheat to jointed goatgrass.
Rattail Fescue: Biology and Management in Pacific Northwest Wheat Cropping Systems (PNW613)
Abstract: Farmers are discovering that weed management practices must be adjusted to control species previously susceptible to tillage as direct-seed wheat production practices become more widely adopted to conserve soil and water resources. Rattail fescue (Vulpia myuros) is an example, as this grass is becoming an increasingly common weed in wheat-based cropping systems across the Pacific Northwest. Rattail fescue has been a management problem in southern Australian pastures and wheat-based cropping systems since the mid-1980s, and more recently it has become particularly widespread in PNW wheat-cropping systems as minimum-tillage and direct-seeding practices have become commonplace throughout the region.