Performance of Blizzard Defoliation Treatments Across the Cotton Belt

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Performance of Blizzard Defoliation Treatments
Across the Cotton Belt

• A. Dalrymple, K. Griffith and R. Hinkle
  Chemtura USA Corporation
  
• 2007 Beltwide Cotton Conference New
  Orleans, LA

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Blizzard Characteristics

• Common name fluthiacet-methyl
• Mode of Action inhibition of Protoporphyrinogen
  oxidase (PPO or PROTOX)
• Formulation EC 0.91 lb ai/gal
• Use rates tested in cotton 0.4 0.6 fl oz/A
• Will have the lowest labeled use rates of any PPO
  defoliant
• Seasonal use total not to exceed 1.25 fl oz/A
• Requires a crop oil concentrate (COC) adjuvant to
  maximize performance
• Not unlike other PPO defoliants
• Rainfast in 1 hour post application

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Field Trial Objectives

• Evaluate Blizzard for cotton defoliation
  performance compared to other PPO defoliant
  products in picker and stripper types of cotton
  across the Cotton Belt.
• Obtain performance data for Blizzard ethephon
  products commonly used such as Finish 6 Pro,
  FirstPick and Prep.
• Measure performance of Blizzard in sequential
  applications with paraquat products Firestorm
  and Gramoxone Inteon.
• Confirm Blizzard use patterns and performance
  with thidiazuron products such as Dropp 50W and
  Dropp 4SC.
• Evaluate performance of aerial applications.

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Field Trial Results
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Cotton Defoliant Performance at Shorter, ALE.V.
Smith REC, Auburn University - 2006
Crop Oil Concentrate added to Aim, Blizzard, ET
Resource treatments _at_ 16 oz/A
Source Dr. Mike Patterson
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Cotton Defoliation with Blizzard Treatments
Mid South
University Trials 2006

Defoliation _at_ 14 DAT
AR Standard Def Prep f.b. Def Prep _at_ 12.8
6.4 /10.7 32 oz LA Standard Def Dropp
Prep _at_ 12.8 1.6 21 oz MS Standard Def
Dropp Finish Pro _at_ 5.3 1.6 21 oz TN
Standard Finish Pro _at_ 64 oz
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Performance of Blizzard and Other PPO Defoliants
as Single Applications in GAPAC Demonstration
Plots - 2006
Irrigated Cotton
Values are averages of 3 locations.
Source Georgia Assoc. of Professional Agric.
Consultants.
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Performance of Blizzard and Other PPO Defoliants
as Single Applications in GAPAC Demonstration
Plots - 2006
Irrigated Cotton
Values are averages of 3 locations.
Source Georgia Assoc. of Professional Agric.
Consultants.
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Performance of Blizzard and Other PPO Defoliants
as Single Applications in GAPAC Demonstration
Plots - 2006
Dryland Cotton
Values are averages of 3 locations.
Source Georgia Assoc. of Professional Agric.
Consultants.
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Performance of Blizzard and Other PPO Defoliants
as Single Applications in GAPAC Demonstration
Plots - 2006
Dryland Cotton
Values are averages of 3 locations.
Source Georgia Assoc. of Professional Agric.
Consultants.
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Performance of Blizzard Treatments at Altus, OK
- 2006
Crop Oil Concentrate added to all Blizzard ET
treatments _at_ 1 v/v.
Source Shane Osborne, Southwest REC, Okla. St.
Univ.
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Performance of Blizzard Tank Mixed with
Different Ethephon Products at the Lubbock, TX
TAES 2006 Defoliation - 15 DAIT
COC added to Aim, Blizzard, ET, Ginstar and
Resource treatments _at_ 1 v/v.
Source Dr. Mark Kelley, TX AM Univ.
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Performance of Blizzard as a Defoliant
on Drip Irrigated Cotton in
Lubbock County, TX 2006Bob Melcher Farm
COC was added to Aim, Blizzard, ET and Resource
treatments _at_ 1 v/v in 15 GPA.
Source Dr. Mark Kelley, TX AM Univ.
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Performance of Blizzard on Drip Irrigated Cotton
with Aerial Application at Idalou, TX 2006
14 DAT
Regrowth rating Bliz SB / Bliz 2
Bliz FP / Fire 3
UTC 5
Application Dates 10/4 and 10/11/06.
Source Steve Becton, Lubbock TX
COC was added to Blizzard treatments _at_ 1 v/v in
5 GPA.
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Blizzard Cotton Defoliation Performance in South
Texas - 2006
COC added to all Blizzard and Resource treatments
_at_ 1 v/v.
Source Ray Smith, Biological Research Service,
Inc.
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Basal Regrowth
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Performance of Blizzard and Other PPO Defoliants
as Single Applications in GAPAC Demonstration
Plots - 2006
Post Treatment Regrowth in Irrigated Cotton
Values are averages of 3 locations.
Source Georgia Assoc. of Professional Agric.
Consultants.
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Performance of Blizzard and Other PPO Defoliants
as Single Applications in GAPAC Demonstration
Plots - 2006
Post Treatment Regrowth of Dryland Cotton
Values are averages of 3 locations.
Source Georgia Assoc. of Professional Agric.
Consultants.
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Regrowth Control in Drip Irrigated CottonBob
Melcher Farm, Lubbock Co., TX 2006 Regrowth
14 DAIT
Date of initial applications 9/20/06
Source Dr. Mark Kelley, Texas AM Univ.
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Blizzard Cotton Defoliation Performance in South
Texas - 2006
COC added to all Blizzard and Resource treatments
_at_ 1 v/v.
Source Ray Smith, Biological Research Service,
Inc.
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Summary

• Blizzard 0.91EC provided effective cotton
  defoliation across a number of locations and
  environments and was comparable to Aim, ET and
  Resource at rates tested.
• Ethephon products CottonQuik, FirstPick, Finish
  Pro and Prep enhanced defoliation performance
  when tank mixed with Blizzard.
• Blizzard treatments were equal to standards in
  Mid-South university trials.
• Dropp followed by Blizzard and Dropp Blizzard
  followed by Blizzard were effective defoliation
  and regrowth suppressing treatments in south
  Texas.
• Blizzard ethephon was more effective than
  Resource ethephon for regrowth suppression in
  two south Texas trials.
• Single applications of Blizzard ethephon were
  equal to other PPO defoliants in leaf removal
  while showing less leaf desiccation than Aim or
  ET in Georgia consultant demonstrations.
• Blizzard ethephon followed by Blizzard and
  Firestorm (paraquat) were very effective
  treatments applied by airplane to irrigated
  cotton in West Texas.

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Anticipate cotton registration in 1st Quarter of
2007
Blizzard Super Boll / Blizzard Idalou, TX