Control of annual grasses in pasture and legume crops with fluazifop-butyl

Abstract

Fluazifop-butyl gave excellent control of annual ryegrass (Lolium rigidum) and barley grass (Hordeum glaucum) in field peas (Pisum sativum), sown snail medic (Medicago scutellata) and regenerated annual medic-grass pasture at 0.25, 0.5 and 1.0 kg/ha, respectively. This effect was most pronounced in areas planted by direct drilling because this seeding technique accentuated the build-up of ryegrass and barley grass. Grain yields of wheat (Triticum aestivum cv. Condor) were higher when sown into areas of annual medic-grass pasture sprayed with fluazifop-butyl in the year preceding the wheat crop.