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APPLICATION INFORMATION
EASTERN US
Apply DuPont™ VELPAR® DF from early spring to early
summer after hardwoods have broken bud and before the
foliage has hardened off.
VELPAR® DF (Lb/Acre)
Soils Eastern US
C
oarse
T
exture
Sand, loamy sand,
sandy loam 2 2/3 - 4
M
edium
T
exture
Loam, silt loam,
sandy clay loam 4 - 5 1/3
F
ine
T
exture
Silty clay loam,
clay loam, sandy clay,
silt, silty clay, clay 5 1/3 - 6 2/3
The rates listed are for broadcast application. Use the lower rates on
coar
se 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 with an * in the Weeds
Controlled list predominate.
WESTERN US
For SITE PREPARATION, VELPAR® DF may be applied
at 1.3 to 4 pounds per 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
“suppression” predominate.
In areas where other conifer species may be mixed in with the
conifers listed above, VELPAR® DF may be applied if the user
has prior experience with VELPAR® DF 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® DF
in these areas within the site preparation area. Conifer species
that are sensitive to VELPAR® (hexazinone) DF, 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
acti
v
ely growing.
Snow Belt (areas of low spring rainfall): For best results,
apply in the fall before soil freezes, or in the spring after
sno
w co
v
er melts in anticipation of rainfall. Weed and brush
control results from spring applications will be dependent
on sufficient rainfall following application to activate
VELP
AR® DF.
PLANTS CONTROLLED
VELPAR® DF is recommended for the control or
suppression of the following species in site preparations for
forestry crops:
HERBACEOUS PLANTS
WOODY PLANTS
*
Suppr
ession is a visib
le reduction in plant competition (reduced
popula
tion and/or vig
or) as compared to an untreated area. Degree
of suppr
ession will v
ary with rate applied, size of plants at
a
pplica
tion and environmental conditions following treatment.
Species indica
ted a
bove, especially resprouts of these species, may
r
equir
e a follow up treatment for acceptable control. Burning, as a
f
ollo
w up treatment, will enhance control of resprouts.
W
ithin several weeks after VELPAR® DF activation by
r
ainf
all,
af
f
ected vegetation may be burned, if desired. This
burn may further enhance control of vegetation. Burn the
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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