Prime Source Flumioxazin 51 WDG Select Herbicide is applied at 0.25 oz. per 2 gallons of water per 500 sq ft, 0.34 fl oz per 2 gallons of water per 750 sq ft or 0.49 fl oz per 1,000 sq ft. Please refer to the product label for more information.
Both Prime Source and Chateau SW Herbicide are a water dispersible granule containing 51.0% flumioxazin. Though Prime Source Flumioxazin 51 WDG Select Herbicide, it is not labeled for grapes or to be used on woody perennial vines per the label. To view our edible-compatible products we offer, you may click here.