Source: Barb Glen, Producer.com, January 31, 2019
Precipitation between now and the growing season will be the biggest factor determining imidazolinone carryover this spring
Another dry year on the Prairies will bring a higher risk of crop damage from imidazolinone herbicide carryover.
It takes moisture to generate conditions for herbicide breakdown in the soil, and although soil pH also plays an important role, under drought conditions a higher level of residue remains in the soil for a longer period of time.
Image Source: Dianna Rosko Graphic/Agriculture Canada
