This product is only labeled for use on Residential Properties by a Professional Applicator. The packets cannot be broken down into smaller applications.

Product Name Ronstar 50 WSP
Active Ingredient Oxadiazon - 50%
Brand Name Ronstar
Target Pest

Broadleaf weeds: Bittergrass, bristly oxtongue, carpetweed, cheeseweed, common groundsel, common purslane, evening primrose ragwort, lambsquarters, liverwort, oxalis, Pennsylvania smartweed, prostrate spurge, redroot pigweed, sow thistle, speedwell, spotted catsear, swinecress, yellow woodsorrel Grassy weeds: Annual bluegrass, barnyardgrass, crabgrass, fall panicum, goose grass, green foxtail, wild oats.


Ronstar 50 WSP is pre emergent selective Herbicides uniquely formulated to control weeds through the shoots and not the roots.

For Use In

Woody Ornamental Shrubs and Trees, Conifer Nurseries, and Ornamentals on Commercial, Residential, Roadsides, Industrial sites, Public Parks and Recreational areas.

Weight 2.13 lbs.
EPA Reg No 432-893
Manufacturer Bayer Environmental Science
Not For Sale To AK, CA, CT, HI, NY, PR, WA

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