EASTERN US |
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| DuPont™ VELPAR® L (Pints/Acre) | |
Soil Texture | First Year | Established |
Description | Plantings | Trees |
Loamy sand, | 4 | 4 – 5 |
sandy |
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Loam, silt loam, silt, | 4 – 5 | 5 – 7 |
sandy clay loam |
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Silty clay loam, | 5 – 6 | 7 – 8 |
clay loam, sandy clay, |
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silty clay, clay |
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Red pine only - Refer to recommended rates in the APPLICATION INFORMATION - Eastern US table on page 13.
WESTERN US
Refer to recommended rates in the APPLICATION INFORMATION - Western US table on page 13.
WEEDS CONTROLLED – RELEASE
VELPAR® L is recommended for the control or suppression of the following species in forestry 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* |
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(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.
FORESTRY—IMPREGNATION ON DRY BULK FERTILIZER
VELPAR® L is recommended for impregnating or coating dry bulk fertilizer to be applied on forested sites for the establishment or release of conifer plantations (except longleaf pine) as specified on this label.
PLANTS CONTROLLED
Fertilizer impregnated with VELPAR® L is recommended for the control and suppression of the weeds and brush identified for the specific applications on this label. Consult
the appropriate segment of this label to determine the appropriate rate of VELPAR® L to be applied per acre. Apply this amount of VELPAR® L to the volume of fertilizer to be applied per acre.
IMPREGNATION EQUIPMENT
To impregnate or coat the fertilizer use a system consisting of conveyor or closed drum used to blend dry bulk fertilizer.
IMPREGNATION INSTRUCTIONS
VELPAR® L may be used undiluted or mixed with a sufficient quantity of water to ensure thorough coverage of the fertilizer.
Direct the spray nozzles of the impregnation equipment to deliver a fine spray of the mixture toward the fertilizer for thorough coverage while avoiding contact with mixing equipment. The use of a colorant or dye may be beneficial to visually determine the uniformity of impregnation.
Uniform impregnation of dry bulk fertilizer may vary. If absorption of the spray is not adequate, the use of an absorptive powder or additive, such as “Microcel E” or “HiSil 233”, may be required to produce a dry, free flowing mixture.
Apply the fertilizer as soon as possible after impregnation for optimum performance. Impregnated fertilizer may become lumpy and difficult to apply following storage.
Diammonium phosphate, potassium chloride,
APPLICATION EQUIPMENT
Applications of impregnated fertilizer may be made by ground equipment or by air (helicopter or fixed wing). Accurate calibration and patterning of the equipment is essential for uniform distribution of the impregnated fertilizer on the soil surface.
USE PRECAUTIONS
IMPREGNATED FERTILIZER FOR FORESTRY
•If fertilizer materials are excessively dusty, use a suitable additive to reduce dust prior to impregnation. Application of dusty fertilizer which has been impregnated may result in
•The dry fertilizer must be properly impregnated and uniformly applied to avoid pine injury/mortality and poor weed and brush control.
•Uniform and precise application of the impregnated fertilizer is essential for satisfactory weed and brush control and to minimize pine injury. Overlaps or skips between adjoining swaths or nonuniform distribution of impregnated fertilizer within the swath will deliver poor results and may result in pine injury or mortality.
•Do not impregnate potassium nitrate, sodium nitrate or triple super phosphate fertilizers with VELPAR® L as herbicidal action will be lost.
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