DuPont Authentication Velpar H - 65190 - Manual (Page 20)

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 non-uniform 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 DuPont™
VELPAR® DF as herbicidal action will be lost.
USE PRECAUTIONS
FORESTRY
• Do not use VELPAR® DF in nurseries, seedbeds, or
ornamental plantings.
• On tracts of land where various soil types are present and
VELPAR® DF rate selection is difficult, conifer damage
or less-than-expected vegetation suppression may occur
due to the different rates required for various soil types.
• Poor weed and brush control may result from the
following:
–Heavy duff or slash present at time of application
–Use on poorly drained sites
–Applications made when the soil is saturated with water
and rain is imminent within 24 hours
–Applications to soils high in organic matter (greater
than 5%)
• Following harvest, allow stumps and injured trees
sufficient time to adequately resprout before applying
VELPAR® DF.
• Where burning is desired, burn vegetation after any brush
has completely defoliated, at least twice, allowing for
sufficient root uptake of VELPAR® DF.
• Do not use VELPAR® DF on frozen soils; use in spring
after snow melt.
• Do not add a surfactant in applications over the top of
conifers.
• Weed control results from spring applications depend on
sufficient moisture to activate VELPAR® DF.
• When applying VELPAR® DF after transplanting, wait
until rainfall has settled the soil around the base and root
systems of the transplants before making the treatment.
• Crop injury may occur when VELPAR® DF is used:
–On trees that show poor vigor, insect damage, disease,
winter injury, or other stress conditions
–On any soil containing less than 1% organic matter
–On loamy sand or sandy loam with less than 2% organic
matter, except Jeffrey pine and Ponderosa pine
–On conifer foliage after conifer bud break
–On gravelly or rocky soils, exposed subsoils, clay knobs,
sand, or sandy soil with 85% or more sand.
• Do not cut treated vegetation for forage or hay nor graze
domestic animals on treated areas for 60 days following
application.
YELLOW POPLAR PLANTINGS
VELPAR® DF is recommended for the control of
herbaceous weeds in the establishment of yellow poplar
plantations. Applications may be made over the top of
planted seedlings after the soil has settled around the root
systems but before the seedlings have broken dormancy
(bud break). A subsequent application may be made before
dormancy break in the Spring of the second year. USE
RATES: Use the rate range specified in the "RELEASE-
HERBACEOUS WEED CONTROL" section for pine
plantations - eastern US.
For ground application, use sufficient spray volume for
uniform and thorough coverage of the site to be sprayed,
usually a minimum of 25 gallons per acre. For aerial
applications, use a minimum of 5 gallons of water per acre.
For broader spectrum control VELPAR® DF may be tank
mixed with DuPont™ ESCORT® XP herbicide. Add
ESCORT® XP at a rate of 1/2 ounce per acre with the
prescribed rate of VELPAR® DF.
USE PRECAUTIONS
YELLOW POPLAR PLANTINGS
• Applications of VELPAR® DF and tank mixes of
VELPAR® DF and DuPont™ ESCORT® XP made to
yellow poplar seedlings that are suffering from loss of
vigor caused by insects, disease, drought, winter damage,
animal damage, excessive soil moisture, planting shock or
other stresses may injure or kill the seedlings.
• Applications of VELPAR® DF and tank mixes of
VELPAR® DF and ESCORT® XP should only be made
after adequate rainfall has closed the planting slit and
settled the soil around the roots following transplanting.
• The use of surfactant with VELPAR® DF is not
recommended for applications made over the tops of
seedlings.
• Careful consideration must be given by an experienced
and knowledgeable forester to ensure the specific growth
requirements of yellow poplar will be provided by the
selected planting site. Treatment of yellow poplar
planted on a site inadequate to meet its requirements may
injure or kill the seedlings.
VELPAR® DF is recommended for control of brush and
weeds in pasture.
BERMUDAGRASS / BAHIAGRASS
VELPAR® DF is recommended for control of smutgrass and
other weeds in established stands of bermudagrass and
bahiagrass.
PASTURE / RANGELAND
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