evaluation of flumioxazin formulations for weed control in
TRANSCRIPT
Miller,* J.T.¹, Prostko, E.P.², and Carter, O.W.³¹Jeff Davis County Extension Agent, UGA Cooperative Extension, Hazlehurst, GA 31539
²Professor and Extension Weed Specialist, UGA Department of Crop & Soil Sciences, Tifton, GA 31793
³Graduate Research Assistant, UGA Department of Crop & Soil Sciences, Tifton, GA 31793
• No interactions between flumioxazin formulation and rate
were observed (P > 0.11).
• When averaged over rates, the Red Eagle flumioxazin
formulation caused less peanut stunting when compared to
the other formulations.
• When averaged over formulations, the 6 oz/A rate caused
more peanut stunting than the 3 oz/A rate.
• No differences in Palmer amaranth control were observed
between formulations or rate.
• No differences in peanut yield were observed between
formulations or rate (P > 0.59).
• Small-plot field trial conducted at the UGA Ponder
Research Farm – Ty Ty, GA
• ‘GA-06G’ planted on April 24, 2017 (twin rows)
• Irrigated
• 4 X 2 factorial in RCB design
• 4 flumioxazin formulations:
− Valor SX 51 WG
− Red Eagle Flumioxazin 51WG
− Panther 4SC
− Valor EZ 4SC
• 2 herbicide rates:
− 3 oz/A
− 6 oz/A
• 4 replications (6’ x 25’ plots)
• All treatments also included Prowl H2O 3.8ASC @ 32
oz/A (2 DAP) fb Cadre 2AS @ 4 oz/A + Dual Magnum
7.64EC @ 21 oz/A + 2,4-DB 1.75SL @ 18 oz/A (32
DAP)
• Application equipment: backpack sprayer, 15 GPA,
AIXR 11002 nozzles, 38 PSI, 3.5 MPH, 20” spacing, 20”
boom height.
Materials and Methods:
Results:
Peanut Stunting (%) - 21 DAPIntroduction:
Peanuts are an important crop for Jeff Davis County and
the state of Georgia with 840,000 acres planted statewide
in 2017. According to a 2013 USDA/NASS Agricultural
Chemical Use Survey, flumioxazin is the top herbicide
applied to U.S. peanut. According to this survey,
flumioxazin was applied on 62% of the U.S. peanut acres.
With several new flumioxazin formulations on the market in
2017, many peanut growers were concerned about how
these new products would perform. Thus, research was
conducted to evaluate three of the new formulations.
28
21
31
29
0
8
16
24
32
40
Valor SX Red Eagle Panther SC Valor EZ
LSD 0.10 = 4
18
37
0
8
16
24
32
40LSD 0.10 = 4
100 100 100 100
0
25
50
75
100
Valor SX Red Eagle PantherSC
Valor EZ
100 100
0
25
50
75
100
18
8
15
13
0
8
16
24
32
40
Valor SX Red Eagle Panther SC Valor EZ
LSD 0.10 = 2
7
21
0
8
16
24
32
40LSD 0.10 = 5
100 100 99 99
0
25
50
75
100
Valor SX RedEagle
PantherSC
Valor EZ
99 100
0
25
50
75
100
Valor SXRed Eagle
Panther SC Valor EZ
NTC
45974437 4379
4565
0
1000
2000
3000
4000
5000
Valor SX Red Eagle PantherSC
Valor EZ
P = 0.7218
4460 4530
0
1000
2000
3000
4000
5000P = 0.5966
Peanut Stunting (%) - 45 DAP
Palmer Amaranth Control (%) - 21 DAP
Peanut Yield (lbs/A)
Palmer Amaranth Control (%) - 45 DAP
Evaluation of Flumioxazin Formulations for Weed Control in Peanut
Valor SX
NTC
Red Eagle
Valor EZPanther SC