
DuPont™ VELPAR® DF is recommended for the control or suppression of the following species in site preparations for forestry crops:
HERBACEOUS PLANTS
Asters |
|
Aster, heath* | Aster ericoides |
Barnyardgrass | Echinochloa |
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 |
WOODY PLANTS
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 |
*Suppression is a visible reduction in plant competition (reduced population and/or vigor) as compared to an untreated area. Degree of suppression will vary with rate applied, size of plants at application and environmental conditions following treatment. Species indicated above, especially resprouts of these species, may require a follow up treatment for acceptable control. Burning, as a follow up treatment, will enhance control of resprouts.
Within several weeks after VELPAR® DF activation by rainfall, affected vegetation may be burned, if desired. This burn may further enhance control of vegetation. Burn the
vegetation only after any residual stand is completely defoliated, at least twice, allowing for sufficient root uptake of VELPAR® DF. In the West, results may take one to two years in areas of low rainfall.
SPRAY EQUIPMENT
When applied as a liquid spray using water as the carrier, VELPAR® DF may be applied by ground equipment or by air (helicopter only).
For ground application, use enough water for thorough coverage, usually a minimum of 25 gallons per acre. For aerial applications, use at least 5 gallons of water per acre.
GRID APPLICATIONMix 2 2/3 pounds of VELPAR® DF with sufficient water to make one gallon of suspension and thoroughly agitate. Intermittent agitation may be required to maintain the VELPAR® DF in suspension.
Apply the VELPAR® DF suspension directly to the soil surface in a grid pattern using an exact delivery handgun applicator. This equipment delivers a thin stream of predetermined volume. VELPAR® DF should be applied during the period from hardwood bud break to early summer.
Application rate and grid pattern will depend on soil texture and woody plant composition. Use the lower rates on coarse textured soils and when the major component of the hardwoods are susceptible species. Use the high rates on
Application Patterns and Rates For VELPAR® DF Suspension
| ML/Spot | Grid (Ft) | Lb/Acre |
Coarse | 0.6 | 3 X 3 | 2 |
| 2.0 | 4 X 4 | 4 |
| 3.1 | 4 X 6 | 4 |
Medium/Fine | 1.6 | 3 X 3 | 5.3 |
| 2.8 | 4 X 4 | 5.3 |
| 3.5 | 4 X 4 | 6.6 |
| 5.2 | 4 X 6 | 6.6 |
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
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