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Methiozolin has a new mechanism of action. Research showed that methiozolin strongly inhibited plant cell wall biosynthesis in susceptible grass. Based on a new action mechanism, Methiozolin is expected to control herbicide-resistant annual bluegrass. A preliminary field test confirmed that Methiozolin controlled suspected foramsulsulfuron-resistant Poa annua in a dormant hybrid bermudagrass putting greens.

Mode of action of Methiozolin
ALS-resistant Poa control in bermudagrass putting greens


Methiozolin is a slow acting herbicide producing gradual cessation of growth followed by complete death of susceptible grasses over 4~8 weeks.

Methiozolin controls annual bluegrass at POST stage applications. POST-applied herbicides generally act via foliar and/or root absorption. However, research has revealed that Methiozolin control weeds primarily via root absorption whether applied PRE or POST. Therefore, Methiozolin does not require an adjuvant, and can be applied at a range of spray volumes.