DuPont Authentication Velpar H - 65396 - Manual (Page 23)

3 - 4 Gallons/Acre
* Suppression – a visible reduction in plant population and/or plant
vigor as compared to an untreated area and generally not accepted
as control.
** Suppression may result with some of the giant (larger)
smutgrass species.
SPECIFIC WEED PROBLEMS
Control of Canada Thistle in Crown Vetch - DuPont™
VELPAR® L is recommended for control of Canada thistle in
established stands of crown vetch on noncrop sites. Make a
single application of 3–5 pints of VELPAR® L from late spring
through mid-summer, when thistle is actively growing prior to
flowering. Do not use a surfactant. Some discoloration of the
crown vetch foliage may occur after application.
SPRAY EQUIPMENT
Apply VELPAR® L uniformly over the desired area using
ground equipment or helicopter. Do not apply more than 3
gallons per acre of VELPAR® L by air.
Use enough water for thorough coverage. For ground
application this is usually 25 gallons per acre. Higher volumes
may be needed to obtain uniform application with handgun
equipment. For aerial applications (helicopter only) this usually
a minimum of 5 gallons per acre. Higher volumes of water may
be needed when water temperatures are cold or the higher rates
of VELPAR® L are used.
INDUSTRIAL TURF
(UNIMPROVED ONLY)
VELPAR® L is recommended for selective weed control in
established stands of bermudagrass and/or bahiagrass in noncrop
areas.
APPLICATION TIMING
Make a single application of VELPAR® L per year when weeds
are actively growing.
WEEDS CONTROLLED - USE RATE
VELPAR® L effectively controls the following weeds at the
rates shown in industrial turf (unimproved only). 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.
2 3/4 - 4 1/2 Pints/Acre
* Suppression may result with some of the giant (larger)
smutgrass species. Suppression – a visible reduction in plant
population and/or plant vigor as compared to an untreated area and
generally not accepted as control.
SPRAY EQUIPMENT
Apply VELPAR® L uniformly over the desired area using
ground equipment only.
For ground application, use enough water for thorough coverage
usually a minimum of 25 gallons per acre. The use of a
surfactant is not recommended.
USE PRECAUTIONS
INDUSTRIAL UNIMPROVED TURF
• Use VELPAR® L only in stands of bermudagrass and
bahiagrass established for at least one year. Do not treat newly
sprigged or sodded areas.
• Some discoloration of the bermudagrass or bahiagrass may
occur after application.
• Injury may result when desirable grasses are under stress from
drought, insects, disease, cold temperature, or poor fertility.
• Severe turf injury may occur if applications are made on
gravelly or rocky soils, thinly covered subsoils, or soils with
less than 1% organic matter.
NON-CROP
BRUSH CONTROL
VELPAR® L is recommended for the control of undesirable
woody plants in noncrop sites.
APPLICATION INFORMATION
Apply VELPAR® L from late winter through summer,
prebud break until new growth hardens off.
In areas where the soil remains frozen during the winter and
spring rains are usually inadequate for soil activation, a fall
or winter treatment may be applied before the soil freezes.
Barley, little Hordeum pusillum
Barnyardgrass Echinochloa crus-galli
Dogfennel Eupatorium capillifolium
Fescue Festuca spp
Lespedeza Lespedeza cuneata
Oxalis Oxalis spp
Passionflower, maypop Passiflora incarnate
Pepperweed, Virginia Lepidium virginicum
Pigweed Amaranthus spp
Smutgrass* Sporobolus indicus
Aster, heath Aster ericoides
Bahiagrass* Paspalum notatum
Bermudagrass* Cynodon dactylon
Blackberry Rubus spp
Bluegrass Poa spp
Broomsedge Andropogon virginicus
Camphorweed Heterotheca subaxillaris
Canada thistle* Cirsium arvense
Carrot, wild Daucus carota
Chickweed Stellaria media
Clovers Trifolium spp
Dewberry Rubus trivialis
Dogfennel Eupatorium capillifolium
Fescue* Festuca spp
Fingergrass Digitaria ciliaris
Foxtail Setaria spp
Guineagrass Panicum maximum
Honeysuckle Lonicera spp
Horseweed/marestail Conyza canadensis
Lantana Lantana camara
Lettuce, prickly Lactuca serriola
Natalgrass (red top) Rhynchelytrum repens
Plantain Plantago spp
Ragweed, common Ambrosia elatior
Smutgrass** Sporobolus indicus
Spanishneedles Bidens bipinnata
Vaseygrass Paspalum urvillei
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