Barley grass is a problematic annual weed species in Australia, typically growing in areas with less than 425 mm of rainfall. It is commonly found in crop fields and pastures, on roadside verges and in livestock enclosures. Although valued for animal feed in pastures early in the season, upon maturity the long barbed awns of barley grass seeds irritate livestock and entangle in wool, reducing productivity and product quality. Barley grass can also serve as a host for pathogenic fungi and nematodes in cereal-growing areas.
Windmill grass (WMG) is a short-lived perennial grass species that has been problematic in the northern cropping region of Australia and is now becoming more common in the southern region. It establishes on roadsides and in summer-fallow, where over-reliance on glyphosate has led to the development of resistance. An understanding of windmill grass biology will help guide management choices to enable successful long-term control. This factsheet includes findings from recent research by the Weed Science Group at the University of Adelaide.
Already a major weed in the northern cropping region of Australia, Feathertop Rhodes grass (FTR) is now occurring in fields in the southern and western cropping regions. FTR has been favoured by the shift towards reduced tillage. In addition, the heavy reliance on glyphosate that typically accompanies reduced tillage has led to resistance, further increasing the threat of FTR. An understanding of FTR biology will help guide management choices to enable successful long-term control. This factsheet includes findings from recent research by the Weed Science Group at the University of Adelaide.