Oustar®

Oustar herbicide is dispersible granule that is mixed and applied as a spray or impregnated on dry, bulk fertilizer. The product is a combination of two herbicides (hexazinone and sulfometuron methyl). The two herbicides have different modes-of-action.

Oustar effectively controls or suppresses many annual grasses and broadleaf weeds. Oustar may be used to control herbaceous weeds on forestry sites in the establishment of loblolly, slash and longleaf pines. The purpose of herbaceous weed control is to allow rapid root development by the pine seedlings to optimize water, light and available nutrients. Oustar may be applied in the first and subsequent growing seasons to provide adequate weed control to expedite the development of pine plantations and crown closure.


Please see the product label for a full list of weeds controlled. Do not use on crops.

Always read and follow label instructions.

Labels & Sizes

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20 lb bag
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