Barley grass control in a wheat-barley-vetch rotation

Barley grass is one of the major weeds in the southern region. Many southern growers think their barley grass is resistant to grass selective herbicides and may have developed late germination to avoid pre-seeding herbicides. In this area, barley grass is a major problem in pastures, and often in break crops as well.The trial aims to investigate pre-emergent herbicides in wheat in 2019, crop density and post-emergent herbicides in barley in 2020, and pre-emergent herbicides and grass selective herbicides in vetch in 2021.