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Aminopyralid Family of Herbicides
March 2011
Bob StewartDow AgroSciences LLC
Albany, OR
www.milestoneherbicide.comwww.vegetationmgmt.com
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Topics Covered
Invasive weeds
Aminopyralid products
Milestone*
ForeFront*
Milestone VM Plus (Radar)
Chaparral* / Opensight*
Product Stewardship
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Spotted knapweed
Why do we control weeds?
Russian knapweed
Yellow starthistle
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Canada thistle Hawkweed
Timber and Range Problems
Scotch
broom
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More Pasture and Range problems
Dalmation toadflax Leafy spurge
Queen Anne’s
lace
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Why we control weeds
Russian thistle stops train – Hardin, MT
3 - 4400 HP engine train
Stuck 5 hrs & 35 min
Hook up 5 more enginesto get over Rowley Hill
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What Cattle Producers Want:
More Grass
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• Competition
– space
– light
– nutrients
– water
• Allelopathy
– chemical inhibition of forage establishment
Weed Interference Impacts on Forages
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Senna occidentalis
Lantana camara
Pteridium aquilinum
Tropical Soda Apple
(Solanum viarum) Loco weed
Broom Snakeweed
Poison Hemlock
Tall Larkspur
Poisonous Plants
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Invasive and Noxious Weeds
Very aggressive rates of spread
Reduce plant diversity
Degrade wildlife habitat
Reduce recreation opportunities
Increase wildfires
Decrease livestock forage
Lower crop yields
Economic costs – millions annually
Reduce land values and aesthetics
Driven to control by state and federal laws
Require integrated control methods
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Reviewed and registered under the Reduced Risk Pesticide Initiative of the U.S. EPA
Provides excellent control of spotted knapweed, Canada thistle and many other invasive species
Low use rate of 3 to 7 fluid oz/acre (0.06 to 0.1 lb ae/acre)
Products have pre-emergent and post-emergent activity for season long control of target broadleaf weeds
Aminopyralid (Milestone® Herbicide)
® Trademark of Dow AgroSciences LLC
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AMINOPYRALID
Very low toxicity (“practically non-toxic”) to birds, fish, mammals and aquatic invertebrates
Products are NOT “restricted use pesticides”
No grazing restrictions to all classes of wildlife and livestock including lactating dairy animals
Surface water breakdown in 15 hours
Can be applied to “seasonally dry wetlands”
Spray up to the waters edge
Apply to irrigated lands and sub-irrigated meadows when water is below soil surface
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Environmental Fate Summary
NO significant metabolites (only CO2 and NH3)
Moderate degradation rates in soil
Soil half life = 34.5 days
Mobility
Low leaching potential
Aquatic degradation
Degraded by sunlight within 15 hours in surface water
Low groundwater contamination potential
Low application rate and moderate field degradation
Low vapor pressure reduces volatility
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Photodegradation in Water
Active Ingredient
Aqueous Photolysis
t1/2 (days)
Triclopyr 0.5
Aminopyralid 0.6
2,4-D 13
Dicamba 52
MSMA Stable
Picloram 2.6
Clopyralid Stable
Metsulfuron-methyl Stable
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Herbicide Attributes Aminopyralid Clopyralid Picloram
Reduced Risk pesticide yes no no
Restricted Use pesticide no no yes
Groundwater advisory no yes yes
Applied to seasonally dry wetlands yes no no
Applied up to the water's edge yes no no
Riparian areas yes no no
Soil half life 34 11 days 90 days
Photolysis in water half-life 0.6 days stable 2.6 days
Maximum use rate
0.1 lb
ae/acre 0.5 lb ae/acre 0.5 lb ae/acre
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Aminopyralid: Grass Tolerance
Most established grasses are tolerant
Apply Milestone after newly seeded grasses have an established secondary (adventitious) root system.
A secondary root system is usually sufficiently developed by 45 to 60 days after planting.
Recommend planting grasses the season after treatment
Fall planting after spring treatment or spring planting after fall application
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Grass hay treated with Milestone
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Milestone versus non treated control Photo taken April 2007
Milestone at 7 fl oz/A
applied fall 2005 at seedingNontreated
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Dow Aminopyralid Family of Herbicides
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Dow AgroSciences
Aminopyralid family of herbicides
Milestone/Milestone VM Aminopyralid 2 lb/gal
7 oz/acre maximum broadcast rate (2x spot treatments)
Radar (Milestone VM Plus ) Triclopyr TEA 1.0 lb/gal + Aminopyralid 0.1 lb/gal
9 pt/acre maximum broadcast rate (2x spot treatments) 7 oz Milestone + 1.5 qt Garlon 3A
ForeFront R&P Aminopyralid 0.33 lb/gal + 2,4-D amine 2.67 lb/gal
2.6 pt/acre maximum broadcast rate (2x spot treatments) 7 oz Milestone + 28 oz 2,4-D
Chaparral/Opensight Aminopyralid (85%) + Metsulfuron methyl (15%) WG
formulation 3.3 oz/acre max use rate (2x spot treatments)
7 oz Milestone + 0.52 oz MSM 60%
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Registered Use Sites
Milestone & ForeFront R&P Milestone™
VM
Rangeland & pastures (including grasses grown for hay)
Conservation Reserve Program acres
Non-cropland areas (such as roadsides)
Non-irrigation ditch banks
Natural areas (such as wildlife management areas, wildlife openings, wildlife habitats, recreation areas, campgrounds, trailheads and trails
Grazed areas in and around labeled sites.
Non-cropland areas including industrials sites, rights-of-way (such as roadsides, electric utility and communication transmission lines, pipelines, and railroads)
Non-irrigation ditch banks
Natural areas (such as wildlife management areas, wildlife openings, wildlife habitats, recreation areas, campgrounds, trailheads and trails
Grazed areas in and around labeled sites.
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Use ½ fluid ounce in 4 to 5 gallons water;
spray to wet, not to runoff.
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Radar (Milestone VM Plus) Aminopyralid 0.1 lb/gal +
triclopyr 1.0 lb/gal formulation
“Caution” label
Essentially non-volatileamine formulation
Most labeled use sites and treatment methods of all aminopyralid products
Broad spectrum control of broadleaf weeds and woody plants
Pre-emergent and post-emergent activity
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Radar (Milestone VM Plus) Excellent grass safety
Broadcast use rates up to 9 pt/a, 9 qt/a max for spot treatments (50% acre limit)
Not a Restricted Use Pesticide
No grazing or haying restrictions
Including lactating dairy animals
Packaging: 2.5’s, 30’s, bulk
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Radar (Milestone VM Plus) Labeled Use Sites
Rangeland & permanent grass pastures
Conservation Reserve Program (CRP)
Forest Sites
Non-cropland areas including industrial sites, rights-of-way (such as roadsides,
electric utility and communication transmission and distribution lines, pipelines, and railroads), fencerows, non-irrigation ditch banks, natural areas (such as wildlife management areas, wildlife openings, wildlife habitats, recreation areas, campgrounds, trailheads and trails), and grazed areas in and around these sites”
Seasonally dry wetlands (including flood plains, marshes, swamps or bogs) and around
standing water on sites such as deltas and riparian areas”
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Radar (Milestone VM Plus) Application Methods
Foliar Air
Ground
Cut-surface treatments Cut stump
Tree injection
Hack & squirt
Frill or girdle
Use rates: Broadcast treatments: 9 pt/a maximum
Equivalent to Milestone @ 7 oz/a + Garlon 3A @ 1.5 qt/a
Spot treatments: 9 qt/a maximum (50% of a acre) Equivalent to Milestone @ 14 oz/a + Garlon 3A @ 3.0 qt/a
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Radar (Milestone VM Plus) - Weed ControlBroadleaf weed and woody plant control includes
aminopyralid and triclopyr sensitive species such as:
Broadleaf weed control including: Bedstraw Buttercup Chickweed Dandelion Dock Fireweed Groundsel Horseweed (marestail) Knapweeds Mayweed Morningglory Mullein Oxeye daisy Poison hemlock Rush skeletonweed Spotted catsear Sorrel (red, sheep) St Johnswort Tansy ragwort Teasel Thistles (bull, Canada, Italian, milk,
musk, Scotch, sow) Wild carrot Wild parsnip
Woody plant control including: Aspen Blackberry Cherry Conifers Elderberry Gorse Hawthorn Knotweed (Japanese, giant) Locust Maple Oak Poison ivy Poison oak Poplar (cottonwood) Rose Scotch broom Sumac
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Radar (Milestone VM Plus )Positioning
Use Milestone VM Plus like Crossbow
Spot treatment of berries, broom and broadleaf weeds
Mix @ 1% solution 100 – 200 GPA
Mix @ 2% solution 50 – 100 GPA
Mix @ 4% solution 25 – 50 GPA
Broadcast treatments
6-9 pt/acre
Essentially non-volatile
Greater safety to non-target plants
Cost effective
Improved control of invasive weeds
Soil activity for longer term results
Greater grass safety
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ODOT – Jefferson, ORMilestone VM Plus @ 9pt/acreScotch Broom Control 10 MATApplied: 9/2006Evaluated: 7/2007
Mowed Only
Will LackeyVM State Coordinator – Salem, OR
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Radar (Milestone VM Plus)
H. blackberry 4 MAT
Milestone VM Plus @ 4% 25 gpa
Milestone VM Plus @ 1.5%25 gpa
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Radar (Milestone VM Plus) @ 6 qt/acre J. Knotweed Control – Linn County, OR (8 MAT)
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Radar (Milestone VM Plus)
Individual Plant Treatments – Cut Stump
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New Dow Aminopyralid Products
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Characteristics
WG formulation
52.5% aminopyralid
9.45% metsulfuron methyl
Product developed due to complementary spectrum of the two modes of action for improved weed control while also reducing the potential for weed resistance development.
ALS inhibitor (MSM)
Auxin / growth regulator (aminopyralid)
Essentially nonvolatile
Low use rates 2 oz – 3.3 oz/acre
Low foaming and easy to mix in water
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OpensightTM
Opensight Rate
oz product/a
Milestone VM
(aminopyralid) fl
oz/a
60% metsulfuron
methyl
oz product/a
1 2.1 0.17
1.5 3.1 0.24
2.0 4.2 0.31
2.5 5.3 0.41
3 6.3 0.48
3.3 7 0.52
Equivalent amount of product
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Non-cropland areas including industrial sites, rights-of-way (such as roadsides, electric utility and communication transmission lines, pipelines and railroads)
Non-irrigation ditch banks
Natural areas (such as wildlife management areas, wildlife openings, wildlife habitats, recreation areas, campgrounds, trailheads and trails)
Grazed areas in and around these sites
Idaho 24(c) SLN - Forest Sites
Directed spray, site-prep, spot treatment
Chaparral use sites: range and pasture, CRP
Labeled Use Sites
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Over 160 weeds listed on label General weeds
Horsenettle, bedstraw, ragweed's, horseweed (marestail), goldenrods, spiny amaranth, dandelion, wild carrot, ironweed, annual broomweed, biennial thistles
Noxious weeds Bull thistle, Canada thistle, Italian thistle, Scotch
thistle, buttercup, sulfur cinquefoil, hawkweeds, knapweeds, common tansy, tansy ragwort, poison hemlock, pigweed, hoary cress (whitetop), houndstongue, common mullein, Sericea lespedeza
Brush Buckbrush, locust (black and honey), blackberry,
gorse, hawthorn, poplar, salmonberry, Scotch broom, thimbleberry, dewberry, rose spp., wisteria, tree of heaven and mimosa.
Species Controlled
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Opensight™ Packaging1.25 lb. and 10 lb. containers
2 x 10 lb containers/case20 oz measuring devise
6 x 1.25 lb containers/case
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Opensight use in injection tanks
•Mix 3.3 oz in 1-4 qt of water
•Compatible with mostVM herbicides
•Agitation required
•Best if used daily due to potential degradation of MSM, SFM and other products degraded thru hydrolysis
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Chemical Pruning - Linn County, OR
Opensight 3.3 oz/acre + Garlon 4 Ultra 2 qt/acre
Applied June 2010, Evaluation Sept 2010 - 3 MAT
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Opensight @ 3.3 oz/acre - Jefferson, OR Applied November 2009
Evaluation May 2010
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Fescue seed head suppression
Opensight 3.3 oz/acre + MSO ¼ % vol:vol
Applied April 2010, Evaluation Aug 2010 4 MAT
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Forest Roadside TrialsEfficacy, Conifer Tolerance – Green Diamond Resources
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Garlon 4 Ultra 48 oz + Opensight 3.3 oz (1YAT)
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Opensight 3.3 oz/A + Payload + glyphosate (zone 1 treatment)
Opensight 3.3 oz/A (Zone 2 treatment)
ODOT – Albany, OR (9 MAT)
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No Opensight
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Linn County Road Dept - Fall 2008 wild carrot trial site prior to treatment in 2009
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Wild carrot control with Opensight @ 3.3 oz/acre
Linn County Road Dept
Applied 4/2/2009 evaluation 10/22/2009 (6+ MAT)
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Aminopyralid Products
Selected Field Results
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Milestone is Effective on Many Invasive Weeds - Including
Canada thistle
Spotted knapweed
Diffuse knapweed
Russian knapweed
Yellow starthistle
Musk thistle
Rush Skeletonweed
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What to look for
Small, bristly cluster of lavender to purple
flowers. Up to 6 feet tall, with deep-cut,
oblong or lance-shaped leaves.
Rate recommendation
Apply a labeled rate of 5 to 7 fluid ounces
of Milestone per acre in the spring to
bolting plants up to early bud stage. All
plants must be emerged for control. Fall
applications are very effective before a
killing frost.
Canada Thistle
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thistles
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Canada thistle control
Milestone 7 fluid oz/acre (1 YAT)
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Milestone VM @ 5 fl oz (1 YAT) Spring prebud application – Longview, WA
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Photo courtesy of Dr. Phil Westra
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8290
70 68
88
36
0
10
20
30
40
50
60
70
80
90
100
5 fl oz/a 7 fl oz/a Stinger*
2/3pt
Tordon*
22K 1 pt/a
Tordon 1.5
pt/a
Banvel^ 1
qt/a
Perc
en
t co
ntr
ol
Canada Thistle Control
Pre-bud Application 1YAT
Milestone*
Evaluations at 1 year after treatment. Locations in CO, MN, MT, ND, NE, OR, VA, SD, WA, and WY
* Trademark of Dow AgroSciences ^ Trademark of Micro Flo Company LLC
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Control of Canada Thistle with
Chaparral™ Herbicide
0
20
40
60
80
100
Chap 2 oz/A Chap 2.5
oz/A
Chap 3.3
oz/A
Chap+D
2.5+1 lb/A
Milestone* 5
fl oz/A
Metsulfuron
.5 oz/A
Mean
% C
NTL 1
YAT D
AA
Mean of multiple locations applied in early summer before bud stage™Trademark of Dow AgroSciences LLC
Chap=Chaparral™Herbicide
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Control of Canada Thistle with Fall Applications of
Aminopyralid Compared to Standards
94 95
81
46
0
10
20
30
40
50
60
70
80
90
100
5 fl oz/a 7 fl oz/a Stinger* 1 pt/a Banvel^1 qt/a
Perc
en
t co
ntr
ol
Milestone*
* Trademark of Dow AgroSciences ^Trademark of Micro Flo Company LLC
Evaluations at 1 year after treatment. Average of 22 sites VA, ND (2), SD, NE, WY, CO, and WA
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What to look for
Slender stems with pink to purple flowers at the top.
Up to 4 feet tall with short and narrow stem leaves
covered with hair (spotted). Overall bushy shape with
upright stem and spreading branches. Leaves are
grayish-green with white, rose or pink flowers (diffuse).
Rate recommendation
Apply a labeled rate of 5 to 7 fluid ounces of Milestone
per acre. Application should be made to plants while
actively growing with the optimum time of application
occurring from rosette to the bolting stages of
development or in the fall.
Spotted and Diffuse Knapweed
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spotted knapweedat application 06/02/2004
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Spotted Knapweed Control
1 year after treatment
Non-treated
control
Milestone 7 fl oz/AMilestone 5 fl oz/a
Non-treated
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Spotted Knapweed control with
Milestone at 6 years after treatment
0
10
20
30
40
50
60
70
80
90
100
MS 5 oz MS 7 oz T22K
1 pt
Trans
2/3 pt
24D 1 qt
1YAT
6YAT
% c
on
tro
l sp
ott
ed
kn
ap
weed
Note: These are averages of paired plot comparisons. There were 4 plots of each Milestone rate and only 2 plots each of Tordon 22K, Transline, and 3 plots of 2,4-D. June (bolt) application
Farragut State Park, ID
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Common Tansy Research Site
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Chaparral™ 2.5 oz/A 1 YAT
Untreated
common tansy
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Control of Common Tansy/Spotted
Knapweed Complex – 1 YAT
0
20
40
60
80
100
Chap 2.0 oz/A Chap 2.5 oz/A Chap 3.3 oz/A Metsulfuron 0.5
oz/A
Milestone* 7 fl oz
common tansy spotted knapweed
% C
NTL 3
77 D
AA
™Trademark of Dow AgroSciences LLC
Chap = Chaparral™Herbicide
00 0
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Houndstongue
Control With
Chaparral™
Herbicide
Photo Courtesy of Jim Sebastian, Colorado State University
•Apply 2.5 ounce/acre to rosettes. •As plant bolts, increase the rate to 3.0 to 3.3 ounce/acre up to early bud stage
™Trademark of Dow AgroSciences LLC
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Control of Houndstongue with
Chaparral™ (CO, WY)
0
20
40
60
80
100
50%rosette/50% bolt Mid bolt/bud late bolt early flower
Chap 2 oz/A Chap 2.5 oz/A Chap 3.3 oz/A
% C
ontr
ol 1 Y
AT
aa
™Trademark of Dow AgroSciences LLC Chap=Chaparral™Herbicide
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Chaparral 2.5 oz/A applied at mid-bolt early bud
Untreated Plot – Mix of houndstongue and Canada thistle
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What to look for
Up to 12 inches tall with basal leaves. Five to 30 flower
heads (yellow or orange) with notched tips.
Rate recommendation
Apply a labeled rate of 4 to 7 fluid ounces of
Milestone™ herbicide per acre. Apply from full
emergence to late bolting stage. Do not treat in the fall.
Hawkweed (yellow and orange)
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Hawkweed infestation N. Idaho
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Hawkweed Control (1YAT - Montana)
Non-treated Milestone 5 fl oz/A
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0
10
20
30
40
50
60
70
80
90
100
3 fl oz 5 fl oz 7 fl oz Tordon* 22K
1 pt/a
Transline*
2/3 pt/a
Banvel ̂1 qt/a
Hawkweed Control with Milestone - 2YAT
Milestone rate/ac
LSD ( P=0.05)Herbicides alone
Herbicides + Fertilizer 80 lb/ac: Fertilizer alone did not control hawkweed * Trademark of Dow AgroSciences ^Trademark of Micro Flo Company LLC
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Scotch thistle
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Wee
d D
ensi
ty(n
o./m
2 )
34 WAT
0
10
20
30
40
50
60
70
80
90
3 oz 4 oz 5 oz 10 oz 32 oz
Milestone Tordon Banvel
a
bbbb
Scotch Thistle Fall ApplicationOctober 26, 2002
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See
dlin
g c
on
tro
l (%
) aa a a
b
0
20
40
60
80
100
3 oz 4 oz 5 oz 10 oz 32 oz
34 WAT
Aminopyralid Tordon Banvel
a
a a a
Musk Thistle Fall ApplicationOctober 26, 2002
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What to look for
Approximately 1 to 3 feet tall with two rust colored
ridges. Oval leaves with transparent dots and
yellow, five-petal flowers ¾ inch in diameter.
Rate recommendation
Apply a labeled rate of 5 to 7 fluid ounces of
Milestone per acre. Application should be made
when actively growing in early growth stage up to
bloom and in the fall.
St. Johnswort
![Page 88: Aminopyralid Family of Herbicides March 2011...Dow AgroSciences Aminopyralid family of herbicides Milestone/Milestone VM Aminopyralid 2 lb/gal 7 oz/acre maximum broadcast rate (2x](https://reader035.vdocuments.mx/reader035/viewer/2022081615/5fd53195e847463536317975/html5/thumbnails/88.jpg)
Milestone Fall Application - suppression of downy
brome and control of St. Johnswort
Fall application of Milestone at 7 fl oz
Note: perennial grasses little downy brome present, and what is present is stunted (see height indicated in right photo)
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Milestone Control of St. Johnswort at 819 Days
After Application
0
10
20
30
40
50
60
70
80
90
100
MS 5 o
z
MS 7 o
z
MS+D
5+32
oz
MS+V
ista
5+2
4 oz
MS+P
ast 5
+32 o
z
MS+E
scort
5+1
oz
24D 3
2 oz
Vista
24 oz
Pas
t 32 oz
Esc
1 o
z
June
Nov
% C
ON
TR
OL
*
* Sig Dif P=0.05
*
* * * **
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Rush Skeletonweed
What to look for
Downward bent with hairs on the lower
4 to 6 inches of the stem. Flowers are
bright yellow and approximately ¾ inch
in diameter.
Rate recommendation
Apply a labeled rate of 5 to 7 fluid
ounces of Milestone™ herbicide per
acre during active growth stages
and in the fall.
*Photo courtesy of Invasive.org and Gary L. Piper, Washington State University, www.forestryimages.org
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Rush Skeletonweed Control - Spring Application
Dr. Joe Yenish WSU
0
10
20
30
40
50
60
70
80
90
100
Mile
sto
ne
3
Mile
sto
ne
5
Mile
sto
ne
7
Re
de
em
32
Re
de
em
64
Tra
ns
line
16
To
rdo
n 3
2
Perc
en
t co
ntr
ol
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Rush Skeletonweed Control - Fall Application
Dr. Joe Yenish WSU
0
10
20
30
40
50
60
70
80
90
100
Mile
sto
ne
3
Mile
sto
ne
5
Mile
sto
ne
7
Re
de
em
32
Re
de
em
64
Tra
ns
line
16
To
rdo
n 3
2
Perc
en
t co
ntr
ol
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Medusahead trials in CA
Joe DiTomaso and Guy Kyser, UC Davis
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Milestone at 7 fl oz vs Nontreated
Treated Oct 2009 - Photo May 2010
Note: release of
annual ryegrass
Red Bluff
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Plateau at 8 fl oz
Treated Oct 2009 - Photo May 2010
SFREC
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Medusahead Cover Compared with Non-treated Control
May 2010
0
10
20
30
40
50
60
70
80
90
100
MS 3
oz
MS 5
oz
MS 7
oz
MS 1
4 oz
Mat
x 1 o
z
Mat
x 2 o
z
Plat 8
oz
Contr
ol
Winters
Marysville
Red Bluff% C
OV
ER
Treated: fall 2009
Evaluated: May 2010
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Protection of non target plants
Irrigation & Domestic Water
Spray Drift
Equipment Management
Crop Rotation
Treatments under sensitive trees
Manure Management
Hay Management
Aminopyralid, clopyralid, picloram)
Product Stewardship
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Aminopyralid, Clopyralid and Picloram
Environmental fate
Primary degradation by soil microbes
Soil moisture and temperature most significant factors
Actives do not degrade in plants or in compost
Treated plant residue, or manure from animals grazing treated hay or pasture forages, could impact current or future sensitive broadleaf crops
Deep tillage can help with plant residue breakdown
Do not allow treated plant material (straw, hay) or manure to get into composting operations
Spread treated plant material and manure
pastures, wheat, corn or grass areas (hay, grass seed)
Do not export hay treated with picloram or aminopyralid products
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Forage Grass(Milestone is stable in plant
until broken down by soil
microbes)
Treated Pasture• Cattle ingest grass
with aminopyralid
residue and excrete in
manure and urine
Non-treated Pasture• Residue clears through
animals system and from
cattle’s manure and urine
within 3 days.Land to be planted to
crops• Cattle transferred after
3 days of “clearing” will not
excrete residue on fallow
site.
“Do not transfer grazing animals from areas treated with aminopyralid to
areas where sensitive broadleaf crops occur without first allowing 3 days of
grazing on an untreated pasture or hay. Otherwise, urine and manure may
contain enough aminopyralid to cause injury to sensitive broadleaf plants. “
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IMPORTANT ADVISORY TO
PREVENT INJURY TO DESIRABLE
PLANTS
• It is mandatory to follow the “Use Precautions and Restrictions” section of this product label.
• Carefully read the section “Plant Residues or Manure.”
• Manure and urine from animals consuming treated grass or hay may contain enough aminopyralid to cause injury to sensitive broadleaf plants.
• Inform the recipient of hay or manure from animals grazing pastures or feeding on hay from areas treated with aminopyralid of the label use precautions and restrictions.
• Consult with a Dow AgroSciences representative if you do not understand the “Use Precautions and Restrictions”. Call [1-(800) 263-1196] Customer Information Group.
Rangeland,
Pasture,
Wheat
Manure,
Compost,
Hay,
Bedding
Potato, Lettuce,
Beans, Tomato
Hay and Manure Management
Rangeland, Pasture,
Hayfield, CRP
Approved by US EPA
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Do not use on grasses grown for hay intended for sale off the farm.
Do not use hay or straw from areas treated with aminopyralid or manure from animals feeding on hay treated with aminopyralidin compost.
Do not use on grasses grown for seed production.
Aminopyralid is not allowed for use on hay that will be distributed or made available for sale off the farm or ranch where harvested.
Aminopyralid is not recommended for use on green chop, silage, haylage and baylage unless all label precautions and restrictions are followed.
Aminopyralid - Pasture and Rangeland Restrictions
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Transline or Stinger herbicide Use Recommendation for Export Grass Hay2(ee) Recommendations (WA, OR)
Transline applications after fall cutting
Ok to export following year hay crops
Transline applications before spring cutting:
Do not export 1st hay cutting
OK to export 2nd hay cutting (fall crop)
Transline applications after spring cutting:
OK to export subsequent year hay crops
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Use restrictions for export hay treated with
2,4-D, fluroxypyr and triclopyr
NONE
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Whitetop (hoary cress)
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Whitetop Study 1 – Treated on
June 1st
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Study 2: Application later in the window
6/19/08 at full to late flower
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ChaparralUntreated
Chaparral @ 2.5 oz/acre
Application 6-19-2008 Evaluation 6-5-09
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Control of Whitetop with Chaparral™
0
20
40
60
80
100
Chap 2.0 oz/A Chap 2.5 oz/A Chap 3.3 oz/A Metsulfuron .5 oz/A
Study 1 Study 2
% C
NT
L 3
77 D
AA
™Trademark of Dow AgroSciences LLC
Chap = Chaparral™
Herbicide
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Milestone 14 fl. oz./acre
Tailings site
Under tree
1 year after treatment
AminopyralidTree Tolerance Study
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Transline herbicide
Conifer Release
Range & Pasture
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Transline – Forestry
Use rates: 6-20 fl oz/acre
Tank mix with other approved forestry products to broaden spectrum of activity
Excellent conifer tolerance even during active growth stages
Safe to use over diverse conifer species and certain hardwoods
Omit surfactants when applying over actively growing conifers
New more cost effective pricing
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Transline - Target Weeds
Elderberry
Thistles
Knapweeds
Hawkweeds
Dandelion
Groundsels
Fireweed
Marestail (horseweed)
Scotch broom (Garlon + Transline)
Others
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marestail & thistles
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Canada thistle
Use Transline @ 12-16 oz/acre
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Thank You
Bob Stewart
Dow AgroSciences LLC
Albany, Oregon
(541) 990-5240
www.dowagro.com
www.vegetationmgmt.com