Dupont-authentication Velpar H - 65190 Manual de usuario descargar pdf (Pagina 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

emperature (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 cla

y, clay 3 - 4

Red pine Loamy sand, sandy loam 1 1/3 - 2 2/3

Loam, silt loam, silt,

sand

y c

y 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 y

ear

s of age from transplanting on medium-textured

soils

•

2 y

ears 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,

ilt loam,

sandy clay loam 2 2/3 - 4

Silt, silty clay loam,

clay loam,

andy 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

eeds Contr

olled section of Release-Herbaceous

eed

Control may be controlled with these applications.

SPRAY EQUIPMENT

When applied as a liquid spray using water as the carrier,

VELP

AR® 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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