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Impact of Different Adjuvants on Efficacy of Transform and Sivanto for Control of Sugarcane Aphid
Gus LorenzUniversity of Arkansas
Sorghum – Sugarcane Aphid Research Exchange Meeting
New Orleans, LAJanuary 7 – 8, 2016
CollaboratorsName Affiliation
Robert Bowling Texas A&M
Raul Villanueva Texas A&M
Ali Zarrabi and Tom Royer Oklahoma State
David Kerns LSU
David Buntin University of Georgia
Gus Lorenz,Nick Seiter and
Glenn Studebaker
University of Arkansas
Introduction• Sugarcane aphids are a problem
• Sometimes you have to spray• Do adjuvants help improve control
when you do?
Materials & Methods
• Design: small plot RCB w/ 4 reps1. Base treatments were Transform
0.5 oz and Sivanto at 3 oz: 1. alone; 2. + NIS; 3. + COC; 4. + MSO; 5. + SS2. Also, had an UTC and optional treatments of 1.0 and 1.5 oz Transform; 5 and 7 oz of Sivanto
Materials and MethodsLocation Arkansas Georgia Louisiana Oklahoma Texas
Date of Planting 30 June 24 June 10 June 5 June 5 June
Variety P84P80 KS585 DKS5400 KS 585
Spray Date 24 Aug 11 Aug 8 July 17 Aug 4 Jun
Growth Stage Pre-boot Boot Pre-Boot Milk/ Soft
Dough
Application Equipment MudMaster CO2
BackpackJohnDeere
HighboyCO2
BackpackCO2
Backpack
Nozzle Dual flat fan Flat fan Hollow Cone Flat fanFlat fan and
2 hollow cone
Ground Speed 3 mph 3 mph 3.25 mph 3 mph 2.5 mph
GPA 10 10 10 20 15
Data Analysis
• Used base treatments of Transform and Sivanto alone and with each adjuvant with and without check (No difference)
• Additional comparisons with optional treatments were included and analyzed
• Total aphid numbers upper and lower leaf per treatment are shown (NSD in separation of upper vs lower) at: 2-5, 6-9 and 10-14 DAT
• We used ARM, summary across trials, LS Means for separation (p=0.05)
2-5 DAA0
10
20
30
40
50
60
70
80
90
Adjuvant Trial, 2015Summary Across 4 Trials
Transform 0.5 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves NSD
UTC – 660 mean no. sca/mid and upper leaves
0
10
20
30
40
50
60 b
bc bc
bc c
c
Milo Adjuvant TrialBuntin UGA Transform 0.5 oz
+ Crop Oil Conc. (SS 83-17)
+ NIS (SS Adept)
+ MSO (SS Mission)
Transform @ 1.0 oz
Transform @ 1.5 oz2 days after application
Aver
age
aphi
ds/p
lant
0
10
20
30
40
50
60
70
80
90
bcd
e
b
cde
bcd
de
Milo Adjuvant TrialLorenz Arkansas
Transform 0.5oz/a
+ COC
+ NIS
+ MSO
+ Silicon Surfactacnt
Transform 1oz/a
9 days after application
Aver
age
aphi
ds/1
0 le
aves
0
200
400
600
800
1000
1200
1400
bcd
e
b
cde
bcd
de
Milo Adjuvant TrialLorenz Arkansas
Transform 0.5oz/a + COC + NIS + MSO + Silicon SurfactacntTransform 1oz/a
12 days after application
Aver
age
aphi
ds/1
0 le
aves
2-5 DAA0
10
20
30
40
50
60
70
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 660 mean no. sca/mid and upper leaves
6-9 DAA0
2
4
6
8
10
12
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 570 mean no. sca/mid and upper leaves
10-14 DAA0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves NSD
UTC – 423 mean no. sca/mid and upper leaves
2-5 DAA0
10
20
30
40
50
60
70
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Transform 0.5 oz with/without ad-juvant
Transform 1 oz
Transform 1.5 oz
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC - 660 mean no. sca/mid and upper leaves
2-5 DAA0
1
2
3
4
5
6
7
8
9
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz with/without adjuvant
Sivanto 5 oz
Sivanto 7 oz
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 660 mean no. sca/mid and up-per leaves
6-9 DAA0
10
20
30
40
50
60
70
80
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Transform 0.5 oz with/without adjuvant
Transform 1 oz
Transform 1.5 oz
Sivanto 2-3oz with/without adjuvant
Sivanto 5 oz
Sivanto 7 oz
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 570 mean number sca/mid and upper leaves
Yield42
44
46
48
50
52
54
56
58
cdbcd
cd
a-d
a
d
ab
cda-d
abc
e
Milo Adjuvant Trial, 2015Texas
Transform 0.5oz
Crop Oil Conc.(generic)
NIS (Induce)
MSO + NIS ( Dyne-Amic)
Silicone Surfactant
Sivanto 3oz
Crop Oil Conc. (generic)
NIS (Induce)
MSO + NIS (Dyne-Amic)
Silicon Surfactant
UTC
bu/a
cre
Key Learnings• Learning 1- Adjuvants did not
significantly improve control of SCA in these trials
• Learning 2- See Learning 1
Next Steps• Suggestion 1-Aerial vs Ground App • Suggestion 2- Lower GPA• Suggestion 3- Rainfastness• Suggestion 4- Just end it and cut your
losses
Ento Crew Being Sticky
Questions?