Transcript Vigor Ratings

Agronomic Evaluation of
At-Plant Insecticides and
Nematicides
Cotton Specialist Working Group
Presented By: Tom Barber
University of Arkansas
Division of Agriculture
Extension Cotton Specialists Working Group








Auburn University
• Charles Burmester
• Dale Monks
University of Arkansas
• Tom Barber
University of Georgia
• Steve Brown
University of Florida
• David Wright
University of California – Davis
• Bob Hutmacher
Louisiana State University
• Sandy Stewart
North Carolina State University
• Keith Edmisten
Oklahoma State University
• J.C. Banks

Clemson University
•

University of Tennessee
•


•
Randy Boman
•
Robert Lemon
Virginia Tech
Randy Norton
Mississippi State University
•

Joel Faircloth
University of Arizona
•

Chris Main
Texas AgriLife Extension Service
•

Mike Jones
Darrin Dodds
Kansas State University
•
Stewart Duncan
Regions
West
Midsouth
Acknowledgements
Bayer Crop Science
 Syngenta Crop Protection
 Extension Entomologists
 Extension Nematologists

At-Plant Insecticide / Nematicide Products
Avicta Complete Pack
 Aeris
 Temik
 Cruiser/Dynasty CST
 Untreated

Orthene 97 1-2lf, fb 4-5lf ASN
 No Orthene

At-Plant Insecticide / Nematicide Products
~ Ratings ~

Vigor = 0-5 (0=dead plants, 5=most vigorous)

Thrips Injury = 0-5 (0=dead plants, 5=no visible injury)

Lint yield (lb/A)
Region
States
Variety
Upper SE
NC, TN, VA
DP 117 B2RF
Lower SE
AL, GA, SC
DP 555 BR
Mid-South
AR, LA
PHY 485 WRF
Southwest
Texas
FM 9063 B2RF
At-Plant Insecticide / Nematicide Products
~ Locations, Researchers ~

Alabama







David Wright, University of Florida

Sandy Stewart, Louisiana State
University

Chris Main, University of Tennessee
Texas

Louisiana
Mike Jones, Clemson University
Tennessee


Keith Edmisten, North Carolina State
University
South Carolina

Steve Brown, University of Georgia
Florida
North Carolina

Tom Barber, University of Arkansas
Georgia


Charles Burmester, Auburn
University
Arkansas


Robert Lemon, Texas AgriLife
Extension Service
Virginia

Joel Faircloth, Virginia Polytechnic
Institute & State University
At-Plant Insecticide/Nematicide Products
~ Belt-wide - Vigor Ratings ~
5
5
4
4
3
3
2
2
1
1
0
Avicta
Aeris
Temik
Cruiser
Untrt
0
Orthene
No Orthene
At-Plant Insecticide/Nematicide Products
~ Belt-wide - Thrips Ratings ~
5
5
4
4
3
3
2
2
1
1
0
Avicta
Aeris
Temik
Cruiser
Untrt
0
Orthene
No Orthene
At-Plant Insecticide/Nematicide Products
~ Belt-wide - Lint Yield (lb/A) ~
1100
1100
900
900
700
700
500
Avicta
Aeris
Temik Cruiser Untrt
500
Orthene
No Orthene
At-Plant Insecticide / Nematicide Products
~ Individual Location Charts ~
The following graphs represent variables at
individual locations that have significant
differences.
Vigor
Thrips Damage
Lint Yield
At-Plant Insecticide/Nematicide Products
~ Alabama - Vigor Ratings ~
5
LSD=0.6
5
4.5
4.5
4
a
a
a
4
a
3.5
3.5
b
3
3
2.5
2.5
2
LSD=NS
Avicta
Aeris
Temik
Cruiser
Untrt
2
Orthene
No Orthene
Similar results in Arkansas, North Carolina, Tennessee, Texas and Virginia
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Louisiana - Vigor Ratings ~
5
LSD=0.7
3.5
LSD=0.3
4.5
4
3.5
a
a
a
3
a
3
a
2.5
b
b
2
2.5
1.5
1
0.5
0
Avicta
Aeris
Temik Cruiser
Untrt
2
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ South Carolina - Vigor Ratings ~
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
LSD=0.9
4
a
ab
3.5
LSD=0.4
a
ab
b
3
b
c
2.5
Avicta
Aeris
Temik Cruiser
Untrt
2
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Alabama - Thrips Ratings ~
5
LSD=0.3
4
LSD=NS
4.5
4
a
a
a
3.5
a
3.5
3
3
2.5
b
2
2.5
1.5
1
Avicta
Aeris
Temik Cruiser
Untrt
2
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Arkansas - Thrips Ratings ~
5
4.5
LSD=0.42
4
LSD=NS
a
ab
bc
4
3.5
c
3.5
3
3
2.5
2
2.5
1.5
1
d
Avicta
Aeris
Temik Cruiser
Untrt
2
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ South Carolina - Thrips Ratings ~
5
LSD=0.8
a
4.5
4
ab
ab
3.5
b
3
c
2.5
2
1.5
1
Avicta
Aeris
Temik Cruiser
Untrt
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
LSD=0.3
a
b
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Tennessee - Thrips Ratings ~
5
LSD=0.3
4
LSD=NS
4.5
4
a
ab
b
3.75
ab
3.5
c
3
3.5
2.5
2
3.25
1.5
1
Avicta
Aeris
Temik Cruiser
Untrt
3
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Virginia - Thrips Ratings ~
4.75
LSD=0.3
4
a
4.5
a
4.25
4
LSD=NS
3.5
b
b
3.75
3
3.5
3.25
2.5
3
2.75
c
Avicta
Aeris
Temik Cruiser
Untrt
2
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Arkansas - Lint Yield ~
1700
1500
LSD=NS
LSD=107
1500
a
a
a
a
1300
1300
b
1100
1100
900
900
700
700
500
Avicta
Aeris
Temik Cruiser Untrt
500
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Georgia - Lint Yield ~
1900
LSD=83
1700
ab
1900
bc
a
1700
bc
b
1500
1300
1300
1100
1100
900
900
Avicta
Aeris
Temik Cruiser
a
c
1500
700
LSD=37
Untrt
700
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ Louisiana - Lint Yield ~
1300
LSD=NS
LSD=100
a
a
ab
ab
b
1100
900
900
700
700
500
1100
Avicta
Aeris
Temik Cruiser Untrt
500
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.10.
At-Plant Insecticide/Nematicide Products
~ Tennessee - Lint Yield ~
500
LSD=66
500
400
400
300
300
a
200
a
a
200
a
b
100
0
Avicta
Aeris
LSD=NS
Temik Cruiser
Untrt
100
0
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
At-Plant Insecticide/Nematicide Products
~ South Carolina - Lint Yield ~
800
LSD=111.8
800
LSD=NS
a
ab
600
600
bc
c
c
400
400
200
200
0
Avicta
Aeris
Temik Cruiser
Untrt
0
Orthene
No Orthene
*Means followed by the same letter are not sig. different, Fisher’s Protected LSD, P<0.05.
Conclusions
There were no differences in seedling vigor,
thrips rating or cotton lint yield when data
analyzed over all locations.
 Vigor




6 out of 10 locations treatments equal and
showed increased vigor over check
2 locations where Orthene applications
increased vigor
SC - Aeris treatments less vigorous
Conclusions

Thrips damage





6 locations treatments equal and better than
untreated check
3 locations where Aeris not as good as Temik
but similar to other treatments
2 locations where Cruiser not as good as Temik
Avicta and Aeris similar except for 2 locations
Yield


6 locations no significant difference
4 locations where treatments better than check



SC- Avicta and Aeris equal to check
Temik higher in SC and GA but lower in LA
1 location where Orthene increased yield.
Conclusions

All treatments better than check where thrips
were present.

No major differences in seedling vigor among
treatments

Orthene applications offered some benefit in a
couple locations.


Secondary pests (spider mites)
More data needs to be included such as plant
height, total nodes, first fruiting node etc.
Future Research

Continue project for at least 1 more year.

Analyze Nationally, Regionally and by
State to determine if more differences
occur.