impact of different adjuvants on efficacy of transform and sivanto for control of sugarcane aphid

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?