DuPont Authentication Velpar L H - 63377 - Manual (Page 15)

APPLICATION TIMING
EASTERN US
Apply VELPAR L as a broadcast or banded spray in the spring
prior to conifer bud break to lessen conifer injury potential.
WESTERN US
Rainbelt (areas of high spring rainfall): For best results, apply
as a broadcast or banded spray in the late winter or spring when
weeds are actively growing, but prior to conifer budbreak.. If
application is made after conifer 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
as a broadcast or banded spray 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. Weed control
results from spring treatments will be dependent on sufficient
rainfall following application to activate VELPAR L.
USE RATES
The rates listed below are for broadcast application. For band
application, use proportionately less. For example, use 1/2 of the
broadcast rates when treating a 3-ft band where row spacing is 6
ft.
EASTERN US
VELPAR L (Pt/Acre)
Soil Texture First Year Established
Description Plantings Trees
Loamy sand, 4 4–5
sandy loam(50-85% sand)
Loam, silt loam, silt, 4–5 5–7
sandy clay loam
Silty clay loam, 5–6 7–8
clay loam, sandy clay,
silty clay, clay
Red pine only - Refer to recommended rates in the
HARDWOOD SUPPRESSION - Eastern US table on page 11.
WESTERN US
Refer to recommended rates in the HARDWOOD
SUPPRESSION-Western US table on page 11.
WEEDS CONTROLLED
* Partial control
IMPORTANT PRECAUTIONS - FORESTRY
• Do not use VELPAR L in nurseries, seedbeds, or ornamental
plantings.
• On tracts of land where various soil types are present and
VELPAR L 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 L.
• Where burning is desired, burn vegetation only after any
brush has completely defoliated, at least twice, allowing for
sufficient root uptake of VELPAR L
• Do not use VELPAR L 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 L.
• When applying VELPAR L 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 L 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.
–On crop species not listed on this label
• Do not cut treated vegetation for forage or hay nor graze
domestic animals on treated areas for 60 days following
application.
Annual bluegrass
Aster
Barnyardgrass
Bentgrass
Bracken Fern
Bromegrass
Catsear (false dandelion)
Common groundsel
Common ragweed
Crabgrass*
Curly dock*
Dandelion*
Dogfennel
Fescue* Fireweed (willowweed)*
Fleabane
Foxtail
Goldenrod*
Heath aster*
Horseweed*
Orchardgrass*
Oxeye daisy
Panicums
Pennsylvania smartweed
Ryegrass*
Squawcarpet
Velvetgrass
Wild carrot*
13