APPLICATION INFORMATION

DuPont™ VELPAR® DF may only be applied to pruned blueberry fields in the spring before leaf emergence. Using calibrated ground spray equipment, make the application in sufficient water to provide thorough and uniform coverage to the treated area (usually 20 gallons per acre). Shut off spray booms when starting, turning, slowing or stopping, or injury to the crop may result.

USE RATES (Lb/Acre)

HIGH BUSH BLUEBERRIES

 

less than or

greater than

 

equal to 3%

3% organic

Soil texture

organic matter

matter

Coarse

 

 

loamy sand,

1.3

1.6

sandy loam

 

 

(50-85% sand)

 

 

Medium

 

 

loam, silt loam,

 

2.6

silt, clay loam,

 

 

sandy clay loam

 

 

Fine

 

 

silty clay loam,

*1.3 - 2

2.6

clay loam,

 

 

sandy clay,

 

 

silty clay, clay

 

 

*Use the higher rate as the soil organic matter approaches 3%.

LOW BUSH BLUEBERRIES

 

less than or

greater than

 

equal to 3%

3% organic

Soil texture

organic matter

matter

Coarse

 

 

loamy sand,

1.2

1.6

sandy loam

 

 

(50-85% sand)

 

 

Medium

 

 

loam, silt loam,

 

2

silt, clay loam,

 

 

sandy clay loam

 

 

Fine

 

 

silty clay loam,

*1.2 - 2.4

2.4 - 3.6**

clay loam,

 

 

sandy clay,

 

 

silty clay, clay

 

 

*Use the higher rate as the soil organic matter approaches 3%. **Use the higher rate for harder to control species.

USE PRECAUTIONS

•Do not apply through any type of irrigation system.

•Do not apply to flooded field with standing water.

•Do not apply within 450 days of harvest.

•Do not exceed 2.4 pounds per acre if field has been treated with hexazinone within the past 8 years.

•Application to blueberry foliage will result in crop injury.

•Since the effect of VELPAR® DF on blueberries varies with soil type, plant vigor, uniformity of applications and amount of rainfall, it is suggested that growers limit their first use to small areas. If excessive leaf drop is observed after treatment, reduce rate in future applications.

•Maintain a 50 foot buffer from any well head or water reservoir.

WEEDS CONTROLLED

VELPAR® DF is recommended for the control or suppression of the following species in high and low bush blueberry crops:

Aster, heath*

Aster ericoides

Barnyardgrass

Echinochloa crus-galli

Blackberry* (briar)

Rubus spp

Bluegrass,

 

Kentucky (perennial)*

Poa pratensis

Brome, downy (cheatgrass)

Bromus tectorum

Broomsedge*

Andropogon virginicus

Carrot, wild*

Daucus carota

Catchfly, English

Silene gallica

Chamomile, mayweed

Anthemis cotula

Cherry, wild

Prunus serotia

Chickweed, common

Stellaria media

Cinquefoil

Potentilla spp

Cockle, white*

Melandrium album

Dandelion, common*

Taraxacum officinale

Dandelion, false*

 

(spotted catsear)

Hypochaeris radicata

Daisy, oxeye

Chrysanthemum leucanthemum

Dock, curly*

Rumex crispus

Dogfennel

Eupatorium capillifolium

Fescue*

Festuca spp

Fiddleneck, tarweed

Amsinckia lycopsoides

Filaree

Erodium spp

Fireweed*(willowweed)

Epilobium angustifolium

Fleabane, flax-leaved

Conyza bonariensis

Flixweed

Descurainia Sophia

Foxtail, yellow

Setaria lutescens

Goldenrod

Solidago spp

Groundsel, common

Senecio vulgaris

Hawkweed

Hieracium spp

Horseweed/marestail

Conyza canadensis

Jimsonweed

Datura stramonium

Lambsquarters, common

Chenopodium album

Lettuce, Miner’s

Montia perfoliata

Lettuce, prickly*

Lactuca serriola

Mustard, blue

Chorispora tenella

Mustard, Jim Hill (tumble)

Sisymbrium altissimum

Orchardgrass *

Dactylis glomerata

Orchardgrass (seedling)

Dactylis glomerata

Panicgrass (witchgrass)

Panicum capillare

Panicum, fall

Panicum dichotomiflorum

Pearly everlasting

Anaphalis margaritacea

Pennycress, field

Thlaspi arvense

Pigweed, redroot

Amaranthus retroflexus

Quackgrass

Agropyron repens

Radish, wild

Raphanus raphanistrum

Ragweed, common

Ambrosia elatior

Raspberry* (briar)

Rubus spp

Rocket, London

Sisymbrium irio

Rocket, common yellow

Barbarea vulgaris

Ryegrass, Italian (annual)

Lolium multiflorum

Ryegrass, perennial*

Lolium perenne

Salsify

Tragopogon spp

Shepherdspurse

Capsella bursa-pastoris

Smartweed, Pennsylvania

Polygonum pensylvanicum

Sorrel, red

Rumex acetosella

Sorrel, sheep

Rumex angiocarpus

Spurry, corn

Spergula arvensis

Strawberry, wild

Fragaria virginiana

Tansymustard (pinnate)

Descurainia pinnata

Tea, Mexican*

Chenopodium ambrosioides

Velvetgrass

Holcus lanatus

Yarrow

Achillea spp

2.4 to 3.6 Lbs/acre

 

Dogbane**

Apocynum spp

Meadow-sweet

Filipendula ulmaria

Blackberry, trailing

Rubus ursinus

Laurel, sheep

Kalmia angustifolia

Rose, wild**

Rosa spp

*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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