2011 beltwide: new products/technologies/concerns weeds
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2011 Beltwide: New Products/Technologies/Concerns WEEDS. 2011 Beltwide Consultants Conference. New Products/Technologies. Glytol + Liberty Link Cotton 2,4-D Resistant Cotton (2015?) Dicamba Resistant Cotton (2015?). Glytol + Liberty Link Cotton. - PowerPoint PPT PresentationTRANSCRIPT
2011 Beltwide: New Products/Technologies/Concerns
WEEDS
2011 Beltwide Consultants Conference
New Products/Technologies
1. Glytol + Liberty Link Cotton
2. 2,4-D Resistant Cotton (2015?)
3. Dicamba Resistant Cotton (2015?)
1. Exceptional tolerance to Ignite and Roundup
2. Systems approach including residuals and other chemistry will offer excellent control of most weeds.
Glytol + Liberty Link Cotton
Ignite vs. Roundup Weed Ignite Roundup
Eveningprimrose + -Morningglory + -Volunteer peanut + -Goosegrass - +Large grasses - +Perennial grasses - +Nutsedge - +Tropical spiderwort - -GR Ragweed + -GR Horseweed -/+ -GR Palmer amaranth -/+ -
Prowl H20 PRE
Glyfos X-tra 48 oz @ 2 lf cotton/ 3” AMAPA
Glyfos X-tra 48 oz @ 7 lf cotton/ 12” AMAPA
Direx + MSMA @ 15 lf cotton/ 18” AMAPA
Prowl H20 PRE
Ignite 33 oz @ 2 lf cotton/3” AMAPA
Glyfos X-tra 48 oz @ 7 lf cotton/ 0” AMAPA
Direx + MSMA @ 15 lf cotton/3” AMAPA
Non-treated Ignite
12 DAT
Palmer response to Ignite
WATER VOLUME AND NOZZLE TYPE IS CRITICAL
Do not apply within an hour of sunrise
MUST KILL IT WITH THE FIRST APPLICATION
Application Timing is Critical in LL Cotton
3” Palmer: 29 to 32 oz/A = >98% control
3-4”: 36 oz/A = 88 to 100% control
4-6” Palmer: 43 oz/A = 70 to 100% control
>6” Palmer: 43 oz and get the hoes ready
Phytogen Widestrike Cotton
1. Confers tolerance to Ignite
2. Tolerance not complete; injury will occur and yield loss can occur if you don’t know what you are doing.
3. According to EPA, Ignite can be applied to widestrike cotton.
4. However, grower is liable as neither Bayer nor Dow recommend or warrant the use of Ignite on Widestrike cotton
375 WideStrike Cotton Tolerance to Multiple Applications of Ignite
Number of 29 oz /A Ig nite Applic ations
1417
1444
1224
0 200 400 600 800 1000 1200 1400 1600
Pounds Lint Cotton
a
a
b
No Ignite
Ignite 2 lf and 7 lf
Ignite 2 lf, 7 lf, bloom
2, 4-D Resistant Cotton
2,4-D resistant cotton
sensitive cotton
Will There Be Value in 2,4-D- or Dicamba-Resistant Traits for Cotton Growers?
1. Tool for managing GR ragweed, horseweed, Palmer, morningglory, perennial weeds, winter annual weeds
2. No preplant interval for burndown
3. A new mode of action for in-crop control
4. Applications overtop of cotton
5. Price of herbicides are currently economical
6. Option to rotate with Roundup for resistance mgmt
1.5 pt of 2,4-D
12 DAT 24 DAT
Ignite Ignite + 2,4-D 0.75 lb
12 DAT
Ignite Ignite + dicamba 0.5 lb
12 DAT
Additional Concerns
Loss of currently used herbicides?MSMA Cotoran
Sustainability of Ignite?
Off target movement of 2,4-D and dicamba
Are You Comfortable Making 2,4-D or Dicamba In-Crop Weed Management Recommendations TODAY?
1. Fair
2. No
3. No
4. No
5. Comfortable with dicamba, not with 2,4-D
6. No
7. Absolutely not
8. No
9. Yes, but only in some locations
10. No way, not today
2,4-D Ester
2,4-D Amine
New Formulation
N
S
SESW
EW
N
NENW
Potted cotton plants placed in all directions @ 5, 10, 20, 40, 80 and 160 ft
4 plants per station
Volatility distance – (plants placed in field after drift pots were removed)
Time of Day (hr)
0 500 1000 1500 2000 2500
Tem
pera
ture
(F
)
65
70
75
80
85
90
95
100Sept 9Sept 10Sept 11
Temperature (F) Sept 9-11
Application
Distance from Herbicide Source (feet)
5 10 20 40 80 160
Vis
ual I
njur
y (%
)
0
10
20
30
40
50
60EsterAmineNew Form
Visual Injury 27 DAA from 2,4-D Volatility, October 6, 2010
Error bar is 1 Std error of mean
Averaged across
directions
Entire 48 hrs
Volatility Injury to Cotton: Tunnel/Dome Data
John Richburg2010 Project ReviewNovember, 2010
Formulation x Exposure
Ester E
ntire
Amine
Ent
ire
New F
orm
Ent
ire
Ester T
1
Amine
T1
New F
orm
T1
Ester T
2
Amine
T2
New F
orm
T2
Vis
ual I
njur
y (%
)
0
20
40
60
80
Visual Injury 27 DAA from 2,4-D Volatility under Tunnels (October 6, 2010)
20
20
20
1913
0 046
Entire = 48 hrs
T1 = 1st 24 hrs
T2 = 2nd 24 hrs
Comments?