This factsheet describes control options for winter annuals and perennials. Toadflax can be troublesome in direct seeded fields. This factsheet describes toadflax's characteristics and discusses options to prevent and control infestations of this weed. Infestations of 15 to 20 shoots per square metre can reduce wheat yields by as much as 36 per cent. In Saskatchewan, perennial sow-thistle densities of 10 shoots per square metre reduced rapeseed yields by 18 per cent.
Control relies on good crop competion and timely application of systemic herbicides.
Various options are available for control of dandelion seedlings, while mature dandelions are much harder to control. Without control, quack grass has the potential to spread rapidly. This factsheet describes quack grass and outlines control options to reduce yield losses in direct seeded cereal and oilseed crops.