NOTE: Severe alfalfa injury may result following application, if after cutting the regrowth is more than 2 inches high, or there is significant stubble left after cutting or grazing, or the air temperature is above 90 °F.

DORMANT VARIETIES

Make a single application of DuPont™ VELPAR® DF after alfalfa becomes dormant and before new growth exceeds 2 inches in height in the spring. Where weeds have emerged, use a surfactant.

USE RATES

Use higher rates on hard-to-control species, (see Weeds Controlled section below) fine textured soils, soils

containing greater than 5% organic matter, or under adverse environmental conditions such as temperature extremes or when weeds are stressed due to low rainfall.

For dormant alfalfa, use a surfactant approved for crops at the rate of 0.25% v/v (1 quart per 100 gallons of spray solution).

Select the appropriate rate for soil texture and organic matter content as follows:

VELPAR® DF (Lb/Acre)

Percent Organic Matter in Soil

Soils<1% 1–5% >5%

Coarse Texture

Loamy sand,

 

 

 

sandy loam

2/3 - 1

2/3 - 1

1 1/3 -2

Medium Texture

 

 

 

Loam, silt loam

 

 

 

silt, clay loam,

 

 

 

sandy clay loam

2/3 - 1

1 - 2

1 1/3 - 2

FineTexture

 

 

 

Silty clay loam,

 

 

 

sandy clay,

 

 

 

silty clay, clay

1 - 2

1 - 2

1 1/3 - 2

NOTE:

-In the states of MT, ND, SD, and WY, do not exceed a use rate of 1 1/3 pounds per acre on medium and fine textured soils.

-In the state of Montana (MT), do not apply to soils with less than 1.5% organic matter.

-In the state of Wyoming (WY):

Do not apply to soils with less than 0.5% organic matter. Apply to irrigated alfalfa only.

WEEDS CONTROLLED

VELPAR® DF, when applied preemergence or early postemergence at the following rates, is recommended for the control or suppression of the following species in alfalfa crops:

1/3 - 2/3 Lb/Acre

Tansymustard

Descurainia pinnata

2/3 - 1 1/3 Lb/Acre

Bluegrass, annual

Poa annua

Brome, downy (cheatgrass)

Bromus tectorum

Buckwheat, wild

Polygonum convolvulus

Catchfly, English

Silene gallica

Chamomile, mayweed (dogfennel)

Anthemis cotula

Chickweed, common

Stellaria media

Fiddleneck, tarweed

Amsinckia lycopsoides

Filaree

Erodium sp.

Flixweed

Descurainia Sophia

Groundsel, common

Senecio vulgaris

Henbit*

Lamium amplexicaule

Lettuce, Miner’s

Montia perfoliata

Mustard, blue

Chorispora tenella

Mustard, Jim Hill (tumble)

Sisymbrium altissimum

Mustard, wild

Brassica kaber

Orchardgrass (seedling)

Dactylis glomerata

Pennycress, field

Thlaspi arvense

Pigweed, redroot

Amaranthus retroflexus

Radish, wild

Raphanus raphanistrum

Rocket, London

Sisymbrium irio

Rocket, common yellow

Barbarea vulgaris

Salsify

Tragopogon spp.

Shepherdspurse

Capsella bursa-pastoris

Speedwell, purslane

Veronica peregrina

Spurry, corn

Spergula arvensis

1 1/3 - 2 Lb/Acre

 

Alfalfa* (seedling)

Medicago sativa

Barley, foxtail (seedling)

Hordeum jubatum

Bluegrass, perennial* (spring only)

Poa spp

Cockle, white*

Melandrium album

Dandelion, common*

Taraxacum officinale

Dandelion, false* (spotted catsear)

Hypochaeris radicata

Foxtail*

Setaria spp

Kochia

Kochia scoparia

Lambsquarters, common

Chenopodium album

Lettuce, prickly*

Lactuca serriola

Mallow, common

Malva neglecta

Ryegrass, Italian (annual)

Lolium multiflorum

Quackgrass*

Elytrigia repens

Speedwell, ivyleaf

Veronica hederaefolia

Tea, Mexican*

Chenopodium

Thistle, Canada (seedling)

ambrosioides

Cirsium arvense

Thistle, Russian

Salsola iberica

*Suppression - a visible reduction in plant population and/or plant vigor as compared to an untreated area and generally not accepted as control.

VELPAR® DF, when applied in late spring or after cutting at the following rates, will control these species listed below:

2/3 - 2 Lb/Acre

Crabgrass

Digitaria spp

Fleabane

Conyza spp

Foxtail

Setaria spp.

Jimsonweed

Datura stramonium

Lambsquarters, common

Chenopodium album

Pigweed, redroot

Amaranthus retroflexus

SPRAY EQUIPMENT

Apply VELPAR® DF using a fixed boom power sprayer or aerial equipment.

For ground applications apply in a minimum of 20 gallons of spray solution per acre and by air in a minimum of 5 gallons.

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DuPont Authentication H - 65190 manual USE Rates, Weeds Controlled, Spray Equipment, Dormant Varieties
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H - 65190 specifications

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