Got cleavers? Take a whole rotation approach to management, especially in the pre-seed window. There is a saying, “Good cleavers control in canola starts in cereals.” Peas and flax also offer pre-seed options not available in fields going into canola.
Here is the full spectrum of pre-seed herbicides available to control cleavers ahead of the specific crops:
Canola
Edge (fall or spring applied) (suppression only)
Higher rate of glyphosate
Wheat
Express pro (Tribenuron/Metsulfuron)***
Focus (Carfentrazone/Pyroxasulfone)
Heat (Saflufenacil)
Prepass (Florasalum)***
Peas
Authority (sulfentrazone) (suppression only)
Heat (Saflufenacil)
Edge (fall or spring applied) (suppression only)
Flax
Authority (sulfentrazone) (suppression only)
***Not effective if cleavers are group 2 resistant
Further reading: