APPLICATION INFORMATION
EASTERN US
Apply DuPont™ VELPAR® L from early spring to early summer after hardwoods have broken bud and before the foliage has hardened off.
Soil Texture | VELPAR® L (Quarts/Acre) |
Description | Eastern US |
Coarse |
|
Sand, loamy sand, |
|
sandy loam | 4 – 6 |
Medium |
|
Loam, silt loam, |
|
sandy clay loam | 6 – 8 |
Fine |
|
Silty clay loam, |
|
clay loam, sandy clay, |
|
silt, silty clay, clay | 8 – 10 |
The rates listed are for broadcast application. Use the lower rates on coarse textured soils and soils low in organic matter. Use the higher rates where weeds identified in this label as “partial control or suppression” predominate.
WESTERN US
For SITE PREPARATION, VELPAR® L may be applied at 2 to 6 quarts pre acre. Use the lower rates on coarse textured soils and soils low in organic matter. Use the higher rates on fine textured soils and soils high in organic matter. Use the higher rates where weeds identified in this label as “partial control or suppression” predominate.
In areas where other conifer species may be mixed in with the conifers listed above, VELPAR® L may be applied if the user has prior experience with VELPAR® L on the other conifer species. With no prior experience, it is recommended that either a small area of plantings be tested for conifer safety prior to treating larger areas, or make no application of VELPAR® L in these areas within the site preparation area. Conifer species that are sensitive to VELPAR® (hexazinone) L, such as, sugar pine and western larch, require 18 months before interplanting on treated sites.
Applications made to shelter wood sites may also result in mortality to
Rain Belt (areas of high spring rainfall): For best results, apply in late winter or spring when weeds and brush are actively growing.
Snow Belt (areas of low spring rainfall): For best results, apply in the fall before soil freezes, or in the spring after snow cover melts in anticipation of rainfall. Weed and brush control results from spring applications will be dependent on sufficient rainfall following application to activate VELPAR® L.
PLANTS CONTROLLED
VELPAR® L is recommended for the control or suppression of the following species in forestry site preparation:
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® L 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
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