vegetation only after any residual stand is completely defoliated, at least twice, allowing for sufficient root uptake of DuPont™ VELPAR® DF. In the West, results may take one to two years in areas of low rainfall.

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 application, use enough water for thorough coverage, usually a minimum of 25 gallons per acre. For aerial applications, use at least 5 gallons of water 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 this label as “partial control or suppression” predominate.

Application Patterns and Rates For VELPAR® DF Suspension

 

ML/Spot

Grid (Ft)

Lb/Acre

Coarse

0.6

3 X 3

2

 

2.0

4 X 4

4

 

3.1

4 X 6

4

Medium/Fine

1.6

3 X 3

5.3

 

2.8

4 X 4

5.3

 

3.5

4 X 4

6.6

 

5.2

4 X 6

6.6

BASAL (SOIL)

SINGLE STEM TREATMENTS

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 soils with low organic matter soils and the higher volumes for fine textured soils or soils with high organic matter.

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.

USE PRECAUTIONS

SITE PREPARATION

Where burning is desired, burn the vegetation only after any residual brush has completely defoliated, at least twice, allowing for sufficient root uptake of VELPAR® DF.

Following harvest, allow sufficient time for stumps and injured trees to adequately resprout before applying VELPAR® DF.

FORESTRY – RELEASE

VELPAR® DF is recommended for conifer release where the following species are grown:

EASTERN US AND LAKE STATES

Fir, balsam

Abies balsamea

Pine, loblolly

Pinus taeda

Pine, longleaf

Pinus palustris

Pine, red

Pinus resinosa

Pine, shortleaf

Pinus echinata

Pine, slash

Pinus elliotti

Pine, Virginia

Pinus virginiana

Spruce, black

Picea mariana

Spruce, Norway

Picea abies

Spruce, red

Picea rubens

Spruce, white

Picea glauca

WESTERN US

 

Fir, Douglas

Pseudotsuga menziesii

Fir, grand

Abies grandis

Fir, Noble

Abies procera

Fir, white

Abies concolor

Hemlock,Western

Tsuga heterophylla

Pine, Jeffrey

Pinus jeffreyi

Pine, lodgepole

Pinus contorta

Pine, ponderosa

Pinus ponderosa

Spruce, blue

Picea pungens

Spruce, Englemann

Picea englemannii

Spruce, Sitka

Picea sitchensis

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DuPont Authentication H - 65190 manual Forestry Release, Grid Application, Basal Soil Single Stem Treatments
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H - 65190 specifications

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