DuPont Authentication Velpar H - 65190 - Manual (Page 17)

APPLICATION INFORMATION
EASTERN US
Apply DuPont™ VELPAR® DF from early spring to early
summer after hardwoods have broken bud and before full
leaf expansion.
Applications made over the top of pines may result in
excessive pine injury under conditions of high humidity and
temperature (80 degrees F).
WESTERN US
Rainbelt (areas of high spring rainfall): For best results,
apply in late winter or spring when brush is actively
growing, but prior to conifer budbreak. If application is
made after bud break, use directional spray equipment to
prevent contact with conifer foliage, as injury may result.
Snowbelt (areas of low spring rainfall): For best results,
apply in the fall before soil freezes and after the final resting
bud has hardened on the conifers. Or, spring applications
may be made after snow cover melts in anticipation of
rainfall prior to conifer budbreak. Brush control results
from spring treatments will be dependent on sufficient
rainfall following application to activate VELPAR® DF.
USE RATES
The rates listed below are for broadcast application. Do not
use more than one application of VELPAR® DF per year.
Use the higher rate range for the harder to control*
(suppression) species in the PLANTS CONTROLLED
listings of the Site Prep and Release sections.
EASTERN US
VELPAR® DF
(Lb/Acre)
Crop Species Soil Description Established Trees
Loblolly pine Loamy sand,
Longleaf pine sandy loam 1 1/3 - 2
Shortleaf pine Loam, silt loam,
Virginia pine silt, sandy clay loam 1 1/3 - 2 2/3
Slash pine Silty clay loam,
clay loam, sandy clay,
silty clay, clay
3 - 4
Red pine Loamy sand, sandy loam 1 1/3 - 2 2/3
Loam, silt loam, silt,
sandy clay loam 2 2/3 - 4
Silty clay loam, clay loam,
sandy clay, silty clay, clay
4 - 5 1/3
Established Trees
• 4 years of age from transplanting on coarse-textured soils
• 3 years of age from transplanting on medium-textured
soils
• 2 years of age from transplanting for Red Pine
WESTERN US
Application rates by soil type for VELPAR® DF in the
following western conifers: Blue spruce, Douglas fir, Engleman
spruce, Grand fir, Jeffrey pine, Lodgepole pine, Noble fir,
Ponderosa pine, Sitka spruce, Western hemlock and White fir.
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:
* 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.
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
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