General Information


Not for use on plants being grown for sale or other commercial use, or for commercial seed production, or for research purposes. For use on plants intended for aesthetic purposes or climatic modification and being grown in ornamental gardens or parks, or on golf courses or lawns and grounds.

Keep unprotected persons out of treated areas until sprays have dried.

BARRIER Ornamental Landscaping Herbicide is recommended for use in all established landscape plantings in institutional, ornamental, and residential sites. BARRIER Ornamental Landscaping Herbicide is intended to be applied by lawn care operators, service technicians, maintenance applicators, and other landscape personnel.

Institutional sites are defined as areas around properties or facilities providing a service to public or private organizations including, but not limited to, hospitals, nursing homes, schools, museums, libraries, sport facilities, golf courses, and office buildings. Ornamental sites include established plantings around residences, parks, streets, retail outlets, cemeteries, industrial and institutional buildings. Finally, residential sites are defined as areas associated with the household or home life including, but not limited to apartment complexes, condominiums, and patient care areas of nursing homes, mental institutions, hospitals, or convalescent homes.

BARRIER Ornamental Landscaping Herbicide can be used for residual weed control in these non-cropland areas:

- Around trees, shrubs, hedges, woody ornamentals, nonbearing fruit trees (ornamental), and certain groundcovers established in shelterbelts, windbreaks, and landscape plantings.

- Under fencelines, along fences, driveways, parking areas, parking lots, and borders of flower beds.

- Along roads and highways and under guard rails.

- Along golf cart pathways, sidewalks, and cemetery memorials.

- Around residences, buildings, and other outbuildings.

Limitations, Restrictions, and Exceptions


BARRIER Ornamental Landscaping Herbicide is recommended for use around the listed established landscape ornamentals.

BARRIER Ornamental Landscaping Herbicide is not recommended for flowers gardens, wildflowers, foliage plants, or flowering bulbs.

Azalea: Kurume, Mollis, Hardy hybrid types and hardy native species only.

Holly (Illex spp.): Except I. crenata, I. rotunda, I. vomitoria

Maple; Pine and Willow: Not for use on these species within the State of California. Pine species are sensitive to injury from BARRIER Ornamental Landscaping Herbicide if applied within two years after transplanting.


Spring and fall applications are effective. Apply as soil surface treatment from late fall through early spring. For best results, applications in the states of Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, Michigan, Wisconsin, Minnesota, North Dakota, South Dakota and Montana should be made in early spring after soil has thawed. Do not apply to frozen soil or over the top of the snow. Old weed growth should not be removed before application. Do not make surface applications to areas which have been cultivated during the fall or summer prior to application.


If practical, shallow incorporation may increase the effectiveness of weed control. Apply and incorporate immediately after application in late fall or very early spring.


This product is recommended for control of certain perennial weeds such as Artemisia, Bluegrass, Canada Thistle, Curly Dock, Dandelion, Dogfennel, False Dandelion (Catsear), Fescue, Horsetail, Leafy Spurge, Natalgrass, Orchardgrass, Plantain, Quackgrass, Russian Knapweed, Timothy, Wild Artichoke, Wild Aster, Yellow Rocket, and Yellow Woodsorrel.

Apply in early spring before seeds of annual weeds germinate or after cultivation has removed the growing weeds. Distribute granules uniformly over the soil surface. If treatment is followed by application of ½ to 1 inch of water by overhead irrigation, the lower rates are recommended. Shallow incorporation immediately after application is recommended in southern states. In other areas, shallow incorporation or sprinkler irrigation is suggested when applications are made during periods of high temperatures.


For annual and biennial weeds apply 100 to 150 pounds of product per acre. For perennial weeds listed, apply 150 to 200 pounds of product per acre. Do not apply more than 150 pounds of product per acre on Azalea, Boxwood, Euonymus, Forsythia, Heather, Holly, Ivy, Lilac, Leucothoe. Do not apply until 4 weeks after transplanting. Do not apply more than 150 pounds of product per acre on plantings less than one year old.

Perennial Weeds

Approximate Treated Area for 50# Bag Size: 14,000 – 11,000 sq ft


- Do not use in seedbeds, transplant or cutting beds, commercial nurseries or greenhouses. Do not apply until 6 months after planting rooted cuttings.

- Do not apply to areas on slopes above lawns or susceptible crops as runoff from treated area could cause injury.

- Do not exceed the maximum recommended amount per growing season. Do not use on “St. Licie fine sand”, “Arzell fine sand” or other light sandy soil.

- Do not graze livestock in treated areas.

- Avoid applications which allow BARRIER Ornamental Landscaping Herbicide to lodge in the foliage, particularly in conifer species, such as pines, yews, etc.

- Do not allow BARRIER Ornamental Landscaping Herbicide to accumulate and be in contact with trunk at or below soil line.

- Do not apply this product by backpack applicator.