
•Application of DuPont™ VELPAR® DF spots closer than 36 inches to conifer seedlings in their first season or directly up slope from these seedlings may result in injury or mortality.
•Use VELPAR® DF on seedlings in their first or fourth year and older. Injury may result from use on two and three year old seedlings where root growth is extensive but hardiness is lacking.
RELEASEHERBACEOUS WEED CONTROLVELPAR® DF is recommended for controlling herbaceous weeds where the following species are grown:
EASTERN US
Loblolly pine | Slash pine |
Longleaf pine | Red pine |
WESTERN US
Blue spruce | Noble fir |
Douglas fir | Ponderosa pine |
Engleman spruce | Sitka spruce |
Grand fir | Western hemlock |
Jeffrey pine | White fir |
Lodgepole pine |
|
APPLICATION INFORMATION
EASTERN US
Apply VELPAR® DF 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® DF.
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
EASTERN US |
|
|
| VELPAR® DF (Lb/Acre) | |
| First Year | Established |
Soil Description | Plantings | Trees |
Loamy sand, | 1 1/3 | 1 1/3 - 1 2/3 |
sandy |
|
|
Loam, silt loam, silt, | 1 1/3 - 1 1/2 | 1 2/3 - 2 1/3 |
sandy clay loam |
|
|
Silty clay loam, | 1 1/2 - 1 8/10 | 2 1/3 - 2 2/3 |
clay loam, sandy clay, |
|
|
silty clay, clay |
|
|
Red pine only - Refer to recommended rates in the APPLICATION INFORMATION - Eastern US table on page 12.
WESTERN US
Refer to recommended rates in the APPLICATION INFORMATION - Western US table on page 12.
WEEDS CONTROLLED
VELPAR® DF is recommended for the control or suppression of the following species in release sites:
Asters | Aster spp |
Aster, heath* | Aster ericoides |
Barnyardgrass | Echinochloa |
Bentgrass | Agrostis spp |
Bluegrass, annual | Poa annua |
Brackenfern | Pteridium aquilinum |
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 |
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 |
Panicums | Panicum spp |
Pinegrass | Calamagrostis rubescens |
Ragweed, common | Ambrosia elatior |
Ryegrass, Italian (annual) | Lolium multiflorum |
Ryegrass, perennial* | Lolium perenne |
Smartweed, Pennsylvania | Polygonum pensylvanicum |
Squawcarpet | Ceanothus prostratus |
Velvetgrass, common | Holcus lanatus |
*Suppression – a visible reduction in plant population and/or plant vigor as compared to an untreated area and generally not accepted as control.
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