General Information


Velpar L VU Herbicide is a water-dispersible liquid that is mixed in water and applied as a spray for weed control in Christmas trees, forestry site preparation and release areas, and industrial areas. It may also be applied undiluted as a basal soil treatment for brush control in reforestation areas, rangeland, pastures and non-crop areas, or by stem injection for brush control.

Velpar L VU Herbicide is an effective general herbicide providing both contact and residual control of many annual, biennial and perennial weeds and woody plants. Velpar L VU Herbicide is noncorrosive to equipment.

Care must be exercised when applying Velpar L VU Herbicide near desirable trees or shrubs as they can absorb Velpar L VU Herbicide through roots extending into treated areas.

This product may be applied on agricultural and nonagricultural sites that contain areas of temporary surface water caused by collection of water between planting beds, in equipment ruts, or in other depressions created by management activities. It is permissible to treat intermittent drainage, intermittently flooded low lying sites, seasonally dry flood plains and transitional areas between upland and lowland sites when no water is present. It is also permissible to treat marshes, swamps and bogs after water has receded, as well as seasonally dry flood deltas. DO NOT make applications to natural or man-made bodies of water such as lakes, reservoirs, ponds, streams and canals.


Velpar L VU Herbicide is absorbed through the roots and foliage. Moisture is required to activate Velpar L VU Herbicide in the soil. Best results are obtained when the soil is moist at the time of application and 1/4–1/2 inches of rainfall occurs within 2 weeks after application. For best results, apply Velpar L VU Herbicide preemergence or postemergence when weeds are less than 2 inches in height or diameter. Foliar activity is most effective under conditions of high temperature (above 80 °F), high humidity, and good soil moisture. Foliar activity may be reduced when vegetation is dormant, semi-dormant, or under stress.

On herbaceous plants, symptoms usually appear within 2 weeks after application under warm, humid conditions, while 4–6 weeks may be required when weather is cool or dry, or when plants are under stress. If rainfall after application is inadequate to activate Velpar L VU Herbicide in the soil, plants may recover from contact effects and continue to grow. On woody plants, symptoms usually appear within 3–6 weeks after sufficient rainfall has carried the herbicide into the root zone during periods of active growth. Defoliation and refoliation may occur, but susceptible plants are killed.

The degree and duration of control may depend on the following:
- Use rate
- Weed spectrum and size at application
- Environmental conditions at and following treatment

Where a rate range is shown, use the higher levels of the dosage range on hard-to-control species, fine-textured soils, or soils containing greater than 5% organic matter or carbon. Use the lower levels of the dosage range on coarse-textured soils and/or on soils low in organic matter. Refer to specific uses for rate ranges.


Velpar L VU Herbicide may be applied by ground equipment and, where permitted, aerial equipment. Use rates, minimum spray gallonage, and other application information are described for the various uses. Dispose of the equipment washwater by applying it to a use-site listed on this label or in accordance with directions given in the “Storage and Disposal” section of this label. Before spraying, calibrate equipment to determine the quantity of water necessary to uniformly and thoroughly cover the vegetation and soil in a measured area to be treated.

This product may be considered for use on public, private, and tribal lands to treat certain weed species infestations that have been determined to be invasive, consistent with the Federal Interagency Committee for the Management of Noxious and Exotic Weeds (FICMNEW) National Early Detection and Rapid Response (EDRR) System for invasive plants.

Effective EDRR systems address invasions by eradicating the invader where possible, and controlling them when the invasive species is too established to be feasibly eradicated. Once an EDRR assessment has been completed and action is advised, a Rapid Response needs to be taken to quickly contain, deny reproduction, and if possible eliminate the invader. Consult your appropriate state extension service, forest service, or regional multidisciplinary invasive species management coordination team to determine the appropriate Rapid Response provisions and allowed treatments in your area.


When herbicides that affect the same biological site of action are used repeatedly over several years to control the same weed species in the same field, naturally-occurring resistant biotypes may survive a correctly applied herbicide treatment, propagate, and become dominant in that field. Adequate control of these resistant weed biotypes cannot be expected. If weed control is unsatisfactory, it may be necessary to retreat the problem area using a product affecting a different site of action.

To better manage herbicide resistance through delaying the proliferation and possible dominance of herbicide resistant weed biotypes, it may be necessary to change cultural practices within and between crop seasons such as using a combination of tillage, retreatment, tank-mix partners and/or sequential herbicide applications that have a different site of action. Weed escapes that are allowed to go to seed will promote the spread of resistant biotypes.

It is advisable to keep accurate records of pesticides applied to individual fields to help obtain information on the spread and dispersal of resistant biotypes. Consult your agricultural dealer, consultant, applicator, and/or appropriate state agricultural extension service representative for specific alternative cultural practices or herbicide instructions available in your area.

This product may be used as part of an Integrated Pest Management (IPM) program that can include biological, cultural, and genetic practices aimed at preventing economic pest damage. IPM principles and practices include field scouting or other detection methods, correct target pest identification, population monitoring, and treating when target pest populations reach locally determined action thresholds. Consult your state cooperative extension service, professional consultants or other qualified authorities to determine appropriate action treatment threshold levels for treating specific pest/crop systems in your area.

Limitations, Restrictions, and Exceptions


VELPAR L is recommended for control of certain weeds where the following species are grown.

Unless otherwise directed in separately published DuPont recommendations, do not use VELPAR L on Christmas trees in the following states: Alabama, Louisiana, New Jersey, Texas, Arkansas, Maine, New York, Vermont, Connecticut, Maryland, North Carolina, Virginia, Delaware, Massachusetts, Pennsylvania, West Virginia, Georgia, Mississippi, Rhode Island, Florida, New Hampshire, and South Carolina.



Apply VELPAR L as a broadcast spray in the spring prior to bud break. If application is made after bud break, use directional spray equipment to prevent contact with foliage.


Areas of greater than 20 inches annual rainfall - VELPAR L may be applied as a broadcast spray in the spring prior to conifer bud break. If application is made after bud break, use directional spray equipment to prevent contact with foliage.

Areas of less than 20 inches annual rainfall - VELPAR L may be applied in the fall before the soil freezes or in the spring after snow cover melts, but before conifer bud break occurs.


The rates listed below are for broadcast application. For band application, use proportionately less; for example, use 1/2 of the broadcast rates when treating a 3-foot band where row spacing is 6 feet. Use the higher end of the rate range on the heavier soil type. Do not use more than one application of VELPAR L per year.

First year plantings - Transplant stock that is 2 years old or more (1 year old for loblolly pine). Apply DuPont VELPAR L only if rainfall has settled the soil around the base and root systems of the transplants.


VELPAR L is recommended for the control or suppression of the listed weed species in Christmas trees.

Suppression – a visible reduction in plant population and/or plant vigor as compared to an untreated area and generally not accepted as control.

Weeds Suppressed:

Aster, heath, Blackberry (briar), Kentucky (perennial), Broomsedge, Carrot, wild, Cockle, white, Dandelion, common, Dandelion, false, Dock, curly, Fescue, Fireweed (willowweed), Lettuce, prickly, Orchardgrass, Raspberry (briar), Ryegrass, perennial, Tea, Mexican


- Do not use VELPAR L in nurseries, seed beds, or ornamental plantings.

- Do not add a surfactant in applications over the top of conifers.

- Weed control results from spring applications depend on sufficient moisture to activate VELPAR L.

- Do not cut treated vegetation for forage or hay nor graze domestic animals on treated areas for 60 days following application.

- Poor weed and brush control may result from the following:

- Heavy duff or slash present at the time of application.

- Use on poorly drained sites.

- Applications made when soil is saturated with water and rain is imminent within 24 hours.

- Applications to soils high in organic matter (greater than 5%).

- Injury may occur when VELPAR L is used on the following:

- Trees that show poor vigor, insect damage, disease, winter injury, or other stress conditions.

- Any soil containing less than 1% organic matter.

- Loamy sand or sandy loam with less than 2% organic matter (except Jeffrey Pine and Ponderosa Pine).

- Foliage after bud break.

- Gravelly or rocky soils, exposed subsoils, clay knobs, sand, or sandy soil with 85% or more sand.

Restricted Entry Interval

48 hours