SPRAY EQUIPMENT
AND APPLICATION TECHNIQUES
BROADCAST
Apply 5 1/3 to 10 2/3 lb of DuPont™ VELPAR® DF per acre
as a coarse spray by ground equipment or 5 1/3 to 8 lb per
acre by air (helicopter only). Use enough water for thorough
coverage. For ground equipment, usually a minimum of 25
gal per acre. For aerial equipment, usually a minimum of 10
gal per acre. Higher volumes of water may be needed when
water temperatures are cold or the higher rates of VELPAR®
DF are used.
BASAL (SOIL)
SINGLE STEM - Mix 2 2/3 pounds of VELPAR® DF with
sufficient water to make one gallon of suspension and
thoroughly agitate. Apply the VELPAR® DF suspension with
an exact-delivery handgun applicator. This equipment
delivers a thin stream of predetermined volume when
triggered. Apply the VELPAR® DF suspension at the rate of
2 to 4 ml for each inch of stem diameter at breast height.
Direct the treatment to the soil within 3 feet of the root collar
of woody plants to be controlled.
For multi-stemmed and low-growing brush that have stem
diameters that are difficult to determine, apply the VELPAR®
DF suspension at the rate of 2 to 4 ml per 3 feet of canopy
width. For tall, slender (columnar) brush types, apply 4 to 8
ml per 3 feet of height. Base the rate on whichever canopy
dimension is greater (width or height).
When treating brush that requires more than a single delivery
of the VELPAR® DF suspension, apply subsequent deliveries
equally spaced around the target plant. If treating brush on
sloping sites, apply most of the suspension on the uphill side
of the stem. If treating resprouts from brush disturbed by
cutting or other mechanical methods, the rate of application
should be proportional to the original tree size, not just the
size of sprout regrowth.
LACING/STREAKING - Mix VELPAR® DF with water to
form a concentrated suspension. Apply 5 1/3 to 10 2/3 lbs of
VELPAR® DF per acre. Adjust the application equipment to
deliver a narrow or straight stream spray pattern such that the
swath width on the soil surface is 6 to 12 inches wide. Direct
the spray at the base of the brush. Swaths or treated bands
should be 2 to 4 feet apart.
USE PRECAUTIONS - NONCROP
• Injury to or loss of desirable trees or other plants may result if
VELPAR® DF is applied or if equipment is drained or
flushed on or near desirable trees or other plants, on areas
where their roots may extend, or in locations where the
chemical may be washed or moved into contact with their
roots.
• Prevent spray from drifting to desirable plants.
• Poor weed and brush control may result from the following:
–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 mechanical cutting or clearing, allow stumps and
injured trees sufficient time to adequately resprout before
applying VELPAR® DF.
• Do not use VELPAR® DF on frozen soils.
• Do not use VELPAR® DF on lawns, driveways, tennis courts,
or other residential or recreational areas.
• Weed and brush control results from spring applications
depend on sufficient moisture to activate VELPAR® DF.
• Do not cut treated vegetation for forage or hay nor graze
domestic animals on treated areas for 60 days following
application. For rates above 8 lb per acre, do not cut treated
vegetation for forage or hay nor graze domestic animals for 1
year.
VELPAR® DF is recommended for control of brush and
weeds in pasture.
BERMUDAGRASS/BAHIAGRASS PASTURES
VELPAR® DF is recommended for control of smutgrass and
other weeds in established stands of bermudagrass and
bahiagrass.
APPLICATION TIMING
Make a single application of VELPAR® DF per year when
weeds are actively growing.
WEEDS CONTROLLED - USE RATES
VELPAR® DF effectively controls the following weeds at the
rates shown. Use a lower rate on coarse-textured soils (sand to
sandy loam). Use the higher rate on fine-textured soils (clay
loam to clay) and on soils high in organic matter.
9/10 - 1 1/2 Lb/Acre
* Partial control may result with some of the giant (larger)
smutgrass species.
SPRAY EQUIPMENT
Apply VELPAR® DF uniformly over the desired area using
ground equipment only.
MIXING INSTRUCTIONS
For ground application, use enough water for thorough
coverage usually a minimum of 25 gal per acre. The use of a
surfactant is not recommended.
USE PRECAUTIONS - PASTURE
• Use VELPAR® DF only in stands of bermudagrass and
bahiagrass established for at least one year. Do not treat
newly sprigged or sodded areas.
• Some temporary discoloration of the bermudagrass or
bahiagrass may occur after application.
Barnyardgrass
Dogfennel
Fescue
Lespedeza
Little barley
Maypop (passion flower)
Oxalis
Pepperweed
Pigweed
Smutgrass*
PASTURE
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