DuPont Authentication Velpar H - 65396 - Manual (Page 15)

APPLICATION INFORMATION
EASTERN US
Apply DuPont™ VELPAR® L from early spring to early
summer after hardwoods have broken bud and before the
foliage has hardened off.
Soil Texture VELPAR® L (Quarts/Acre)
Description Eastern US
Coarse
Sand, loamy sand,
sandy loam 4 – 6
Medium
Loam, silt loam,
sandy clay loam 6 – 8
Fine
Silty clay loam,
clay loam, sandy clay,
silt, silty clay, clay
8 – 10
The rates listed are for broadcast application. Use the lower rates on
coarse textured soils and soils low in organic matter. Use the higher
rates where weeds identified in this label as “partial control or
suppression” predominate.
WESTERN US
For SITE PREPARATION, VELPAR® L may be applied at
2 to 6 quarts pre acre. Use the lower rates on coarse textured
soils and soils low in organic matter. Use the higher rates on
fine textured soils and soils high in organic matter. Use the
higher rates where weeds identified in this label as “partial
control or suppression” predominate.
In areas where other conifer species may be mixed in with the
conifers listed above, VELPAR® L may be applied if the user
has prior experience with VELPAR® L on the other conifer
species. With no prior experience, it is recommended that either
a small area of plantings be tested for conifer safety prior to
treating larger areas, or make no application of VELPAR® L in
these areas within the site preparation area. Conifer species that
are sensitive to VELPAR® (hexazinone) L, such as, sugar pine
and western larch, require 18 months before interplanting on
treated sites.
Applications made to shelter wood sites may also result in
mortality to over-story conifers. Factors that may influence
conifer sensitivity in these sites could include application rate,
conifer species, soil characteristics, uniformity of spray distri-
bution across the treatment swath and environmental stress.
Rain Belt (areas of high spring rainfall): For best results,
apply in late winter or spring when weeds and brush are
actively growing.
Snow Belt (areas of low spring rainfall): For best results,
apply in the fall before soil freezes, or in the spring after snow
cover melts in anticipation of rainfall. Weed and brush
control results from spring applications will be dependent on
sufficient rainfall following application to activate
VELPAR® L.
PLANTS CONTROLLED
VELPAR® L is recommended for the control or
suppression of the following species in forestry site
preparation:
HERBACEOUS PLANTS
WOODY PLANTS
* Suppression is a visible reduction in plant competition (reduced
population and/or vigor) as compared to an untreated area. Degree
of suppression will vary with rate applied, size of plants at
application and environmental conditions following treatment.
Species indicated above, especially resprouts of these species, may
require a follow up treatment for acceptable control. Burning, as a
follow up treatment, will enhance control of resprouts.
Within several weeks after VELPAR® L activation by rainfall,
affected vegetation may be burned, if desired. This burn may
further enhance control of vegetation. Burn the vegetation
only after any residual stand is completely defoliated, at least
Ash Fraxinus spp
Aspen, big tooth Populus grandidentata
Aspen, trembling Populus tremuloides
Birch Betula spp
Blackgum Nyssa sylvatica
Cherry, black Prunus serotina
Deerbrush Ceanothus integerrimus
Dogwood, flowering* Cornus florida
Elm Ulmus spp
Hawthorn Crataegus spp
Hazel Corylus spp
Hickory Carya 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
Asters
Aster, heath*
Aster ericoides
Barnyardgrass Echinochloa crus-galli
Bentgrass Agrostis spp
Bluegrass, annual Poa annua
Bromegrass Bromus spp
Carrot, wild Daucus carota
Crabgrass* Digitaria spp
Daisy, oxeye Chrysanthemum leucanthemum
Dandelion, common* Taraxacum officinale
Dandelion, false*
(spotted catsear) Hypochaeris radicata
Dock, curly* Rumex crispus
Elksedge Carex geyeri
Fescue* Festuca spp
Fireweed*(willowweed) Epilobium angustifolium
Fleabane Conyza spp
Foxtail Setaria spp
Goldenrod* Solidago spp
Groundsel, common Senecio vulgaris
Horseweed/marestail Conyza canadensis
Orchardgrass * Dactylis glomerata
Pinegrass Calamagrostis rubescens
Quackgrass* Agropyron repens
Ragweed, common Ambrosia elatior
Ryegrass, Italian (annual) Lolium multiflorum
Ryegrass, perennial*
Lolium perenne
Smartweed,
Pennsylvania Polygonum pensylvanicum
Squawcarpet Ceanothus prostratus
Thistle, Canada* Cirsium arvense
Velvetgrass, common Holcus lanatus
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