DuPont Authentication Velpar H - 65396 Manual Download Page 19

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EASTERN US

DuPont™ VELPAR® L (Pints/Acre)

Soil Texture

First Year

Established

Description

Plantings

Trees

Loamy sand,

4 – 5

sandy loam(50-85% sand)
Loam, silt loam, silt,

4 – 5

5 – 7

sandy clay loam

Silty clay loam,

5 – 6

7 – 8

clay loam, sandy clay,

silty clay, clay

Red pine only - Refer to recommended rates in the
APPLICATION INFORMATION - Eastern US table
on page 13.

WESTERN US

Refer to recommended rates in the APPLICATION
INFORMATION - Western US table on page 13.

WEEDS CONTROLLED – RELEASE

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

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

FORESTRY—IMPREGNATION ON DRY
BULK FERTILIZER

VELPAR® L is recommended for impregnating or coating
dry bulk fertilizer to be applied on forested sites for the
establishment or release of conifer plantations (except
longleaf pine) as specified on this label.

PLANTS CONTROLLED

Fertilizer impregnated with VELPAR® L is recommended
for the control and suppression of the weeds and brush
identified for the specific applications on this label. Consult

the appropriate segment of this label to determine the
appropriate rate of VELPAR® L to be applied per acre.
Apply this amount of VELPAR® L to the volume of
fertilizer to be applied per acre.

IMPREGNATION EQUIPMENT

To impregnate or coat the fertilizer use a system consisting
of conveyor or closed drum used to blend dry bulk fertilizer.

IMPREGNATION INSTRUCTIONS

VELPAR® L may be used undiluted or mixed with a
sufficient quantity of water to ensure thorough coverage of
the fertilizer.

Direct the spray nozzles of the impregnation equipment to
deliver a fine spray of the mixture toward the fertilizer for
thorough coverage while avoiding contact with mixing
equipment. The use of a colorant or dye may be beneficial
to visually determine the uniformity of impregnation.

Uniform impregnation of dry bulk fertilizer may vary. If
absorption of the spray is not adequate, the use of an
absorptive powder or additive, such as “Microcel E” or
“HiSil 233”, may be required to produce a dry, free flowing
mixture.

Apply the fertilizer as soon as possible after impregnation
for optimum performance. Impregnated fertilizer may
become lumpy and difficult to apply following storage.

Diammonium phosphate, potassium chloride, 16-16-16 and
24-4-4 have been successfully impregnated.

APPLICATION EQUIPMENT

Applications of impregnated fertilizer may be made by
ground equipment or by air (helicopter or fixed wing).
Accurate calibration and patterning of the equipment is
essential for uniform distribution of the impregnated
fertilizer on the soil surface.

USE PRECAUTIONS
IMPREGNATED FERTILIZER FOR FORESTRY

• If fertilizer materials are excessively dusty, use a suitable

additive to reduce dust prior to impregnation. Application
of dusty fertilizer which has been impregnated may result
in off-target drift and injury to desirable vegetation. Such
drift and associated injury may be aggravated by high
wind conditions.

• The dry fertilizer must be properly impregnated and

uniformly applied to avoid pine injury/mortality and poor
weed and brush control.

• Uniform and precise application of the impregnated

fertilizer is essential for satisfactory weed and brush
control and to minimize pine injury. Overlaps or skips
between adjoining swaths or nonuniform distribution of
impregnated fertilizer within the swath will deliver poor
results and may result in pine injury or mortality.

• Do not impregnate potassium nitrate, sodium nitrate or

triple super phosphate fertilizers with VELPAR® L as
herbicidal action will be lost.

Asters

Aster spp

Aster, heath*

Aster ericoides

Barnyardgrass

Echinochloa crus-galli

Bentgrass

Agrostis spp

Bluegrass, annual

Poa annua