2016 Sorghum Sugarcane Aphid Research Exchange

1. Impact of Different Adjuvants on
Efficacy of Transform and Sivanto
for Control of Sugarcane Aphid
Gus Lorenz
University of Arkansas
Sorghum – Sugarcane Aphid
Research Exchange Meeting
New Orleans, LA
January 7 – 8, 2016

2. Collaborators
Name 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

3. Introduction
• Sugarcane aphids are a problem
• Sometimes you have to spray
• Do adjuvants help improve control
when you do?

4. Materials & Methods
• Design: small plot RCB w/ 4 reps
1. Base treatments were Transform
0.5 oz and Sivanto at 3 oz:
1. alone; 2. + NIS; 3. + COC;
4. + MSO; 5. + SS
2. Also, had an UTC and optional
treatments of 1.0 and 1.5 oz
Transform; 5 and 7 oz of Sivanto

5. Materials and Methods
Location 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
Backpack
JohnDeere
Highboy
CO2
Backpack
CO2
Backpack
Nozzle Dual flat fan Flat fan Hollow Cone Flat fan
Flat 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

6. 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)

7. 0
10
20
30
40
50
60
70
80
90
2-5 DAA
MeannumberSCA/midandupperleaves Adjuvant Trial, 2015
Summary Across 4 Trials
Transform 0.5 oz
COC
NIS
Silicon Surfactant
MSO
NSD
UTC – 660 mean no. sca/mid and
upper leaves

8. b
bc
bc
bc
c
c
0
10
20
30
40
50
60
Averageaphids/plant
2 days after application
Milo Adjuvant Trial
Buntin UGA
Transform 0.5 oz
+ Crop Oil Conc. (SS
83-17)
+ NIS (SS Adept)
+ MSO (SS Mission)
Transform @ 1.0 oz
Transform @ 1.5 oz

9. bcd
e
b
cde
bcd
de
0
10
20
30
40
50
60
70
80
90
Averageaphids/10leaves
9 days after application
Milo Adjuvant Trial
Lorenz Arkansas
Transform 0.5oz/a
+ COC
+ NIS
+ MSO
+ Silicon Surfactacnt
Transform 1oz/a

10. bcd
e
b
cde
bcd
de
0
200
400
600
800
1000
1200
1400
Averageaphids/10leaves
12 days after application
Milo Adjuvant Trial
Lorenz Arkansas
Transform 0.5oz/a
+ COC
+ NIS
+ MSO
+ Silicon Surfactacnt
Transform 1oz/a

11. 0
10
20
30
40
50
60
70
2-5 DAA
MeannumberSCA/midandupperleaves Milo Adjuvant Trial, 2015
Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
NSD
UTC – 660 mean no. sca/mid and
upper leaves

12. 0
2
4
6
8
10
12
6-9 DAA
MeannumberSCA/midandupperleaves Milo Adjuvant Trial, 2015
Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
NSD
UTC – 570 mean no.
sca/mid and upper leaves

13. 0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
10-14 DAA
MeannumberSCA/midandupperleaves Milo Adjuvant Trial, 2015
Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
NSD
UTC – 423 mean no. sca/mid and
upper leaves

14. 0
10
20
30
40
50
60
70
2-5 DAA
MeannumberSCA/midandupperleaves Milo Adjuvant Trial, 2015
Summary Across 4 Trials
Transform 0.5 oz
with/without
adjuvant
Transform 1 oz
Transform 1.5 oz
NSD
UTC - 660 mean no. sca/mid and
upper leaves

15. 0
1
2
3
4
5
6
7
8
9
2-5 DAA
MeannumberSCA/midandupperleaves Milo Adjuvant Trial, 2015
Summary Across 4 Trials
Sivanto 2-3 oz
with/without
adjuvant
Sivanto 5 oz
Sivanto 7 oz
NSD
UTC – 660 mean no. sca/mid and
upper leaves

16. 0
10
20
30
40
50
60
70
80
6-9 DAA
MeannumberSCA/midandupperleaves Milo Adjuvant Trial, 2015
Summary 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
NSD
UTC – 570 mean number sca/mid
and upper leaves

17. cd
bcd
cd
a-d
a
d
ab
cd
a-d
abc
e
42
44
46
48
50
52
54
56
58
Yield
bu/acre Milo Adjuvant Trial, 2015
Texas
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

18. Key Learnings
• Learning 1- Adjuvants did not
significantly improve control of
SCA in these trials
• Learning 2- See Learning 1

19. Next Steps
• Suggestion 1-Aerial vs Ground App
• Suggestion 2- Lower GPA
• Suggestion 3- Rainfastness
• Suggestion 4- Just end it and cut your
losses

20. Ento Crew Being Sticky

21. Questions?