DuPont™ VELPAR® DF

Soil Description

(Lb/Acre)

Loamy sand,

 

 

sandy loam

1

1/3 - 3

Loam,

 

 

silt loam,

 

 

sandy clay loam

2

2/3 - 4

Silt, silty clay loam,

 

 

clay loam,

 

 

sandy clay, silty clay,

 

 

clay

3

- 4

For first year plantings utilizing bare root stock, treat only transplant stock that is 2 years old (2-0, 1-1) or more, except (1-0) for Ponderosa and Jeffrey pines. Apply VELPAR® DF only if rainfall has settled the soil around the base and root systems of the transplants.

BRUSH CONTROLLED

VELPAR® DF is recommended for the control or suppression of the following species in conifer release sites:

Ash

Fraxinus spp

Aspen, big tooth

Populus grandidentata

Aspen, trembling

Populus tremuloides

Birch

Betula spp

Elder, box

Acer negundo

Brambles

Rubus spp

Cherry, black

Prunus serotina

Cherry, pin

Prunus pensylvanica

Deerbrush

Ceanothus integerrimus

Dogwood, flowering*

Cornus florida

Elm

Ulmus spp

Hawthorn

Crataegus spp

Hazel

Corylus spp

Honeysuckle*

Lonicera spp

Manzanita, Greenleaf

Arctostaphylos patula

Maple, red*

Acer rubrum

Oaks

Quercus spp

Poplar, balsam

Populus balsamifera

Snowbrush (varnishleaf)

Ceanothus velutinus

Sourwood*

Oxydendrum arboretum

Sweetgum

Liquidambar spp

Willows

Salix spp

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

In addition to brush controlled, herbaceous species listed in Weeds Controlled section of Release-Herbaceous Weed Control may be controlled with these applications.

SPRAY EQUIPMENT

When applied as a liquid spray using water as the carrier, VELPAR® DF may be applied by ground equipment or by air (helicopter only).

For ground applications, use sufficient spray volume for thorough and uniform coverage of the site to be treated, usually a minimum of 25 gallons per acre. For aerial applications, use a minimum of 5 gallons per acre.

GRID APPLICATION

Mix 2 2/3 pounds of VELPAR® DF with sufficient water to make one gallon of suspension and thoroughly agitate. Intermittent agitation may be required to maintain the VELPAR® DF in suspension.

Apply the VELPAR® DF suspension directly to the soil surface in a grid pattern using an exact delivery handgun applicator. This equipment delivers a thin stream of predetermined volume. VELPAR® DF should be applied during the period from hardwood bud break to early summer.

Application rate and grid pattern will depend on soil texture and woody plant composition. Use the lower rates on coarse textured soils and when the major component of the hardwoods are susceptible species. Use the high rates on fine-textured soils and where weeds identified in the label as “partial control or suppression” predominate.

Application Patterns and Rates For VELPAR® DF Suspension

 

ML/Spot

Grid (Ft)

Lb/Acre

Coarse

0.5

3 X 4

1.3*

 

1.2

3 X 6

2

 

2.1

4 X 6

2.6

Medium/Fine

1.2

3 X 3

4

 

2.3

3 X 6

4

 

1.6

3 X 3

5.3

 

3.1

3 X 6

5.3

* Use on deep sands with pines four years or more of age.

BASAL (SOIL)

SINGLE STEM TREATMENT

Mix 2 2/3 pounds of VELPAR® DF with sufficient water to make one gallon of suspension and thoroughly agitate. Apply the VELPAR® DF suspension with an exact-delivery handgun applicator. This equipment delivers a thin stream of predetermined volume when triggered. Apply the VELPAR® DF suspension at the rate of 2 to 4 ml for each inch of stem diameter at breast height. Direct the treatment to the soil within 3 feet of the root collar of woody plants to be controlled.

For multi-stemmed and low-growing brush that have stem diameters that are difficult to determine, apply the VELPAR® DF suspension at the rate of 2 to 4 ml per 3 feet of canopy width. For tall, slender (columnar) brush types, apply 4 to 8 ml per 3 feet of height. Base the rate on whichever canopy dimension is greater (width or height). Apply the lower volumes for coarse textured soils or low organic matter soils and the higher volumes for fine textured soils or high organic matter soils.

When treating brush that requires more than a single delivery of the VELPAR® DF suspension, apply subsequent deliveries equally spaced around the target plant. If treating brush on sloping sites, apply most of the suspension on the uphill side of the stem. If treating resprouts from brush disturbed by cutting or other mechanical methods, the rate of application should be proportional to the original tree size, not just the size of sprout regrowth.

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