Opensight® Herbicide to Control Mixed Stands of Invasive Weeds

Opensight® Herbicide to Control Mixed Stands of Invasive Weeds

Herbicide field trials conducted near Missoula, Montana in 2006 and 2008 indicate that Opensight® at 2 to 3.3 oz product/A provided excellent control (>95%) of both common tansy and spotted knapweed 1 year after treatment. In the same study, metsulfuron methyl alone at 0.5 oz product/A provided excellent control of common tansy but no control of spotted knapweed.

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