Performance of Blizzard™ Defoliation Treatments Across the Cotton Belt A. Dalrymple, K. Griffith and R. Hinkle Chemtura usa corporation



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tarix06.05.2018
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#41568


Performance of Blizzard™ Defoliation Treatments Across the Cotton Belt






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

  • 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



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.





Cotton Defoliant Performance at Shorter, AL E.V. Smith REC, Auburn University - 2006



Cotton Defoliation with Blizzard™ Treatments Mid South University Trials – 2006 % Defoliation @ 14 DAT



Performance of Blizzard™ and Other PPO Defoliants as Single Applications in GAPAC Demonstration Plots - 2006



Performance of Blizzard™ and Other PPO Defoliants as Single Applications in GAPAC Demonstration Plots - 2006



Performance of Blizzard™ and Other PPO Defoliants as Single Applications in GAPAC Demonstration Plots - 2006



Performance of Blizzard™ and Other PPO Defoliants as Single Applications in GAPAC Demonstration Plots - 2006





Performance of Blizzard Tank Mixed with Different Ethephon Products at the Lubbock, TX TAES – 2006 Defoliation - 15 DAIT



Performance of Blizzard as a Defoliant on Drip Irrigated Cotton in Lubbock County, TX – 2006 Bob Melcher Farm



Performance of Blizzard on Drip Irrigated Cotton with Aerial Application at Idalou, TX – 2006 14 DAT



Blizzard Cotton Defoliation Performance in South Texas - 2006





Performance of Blizzard™ and Other PPO Defoliants as Single Applications in GAPAC Demonstration Plots - 2006



Performance of Blizzard™ and Other PPO Defoliants as Single Applications in GAPAC Demonstration Plots - 2006



Regrowth Control in Drip Irrigated Cotton Bob Melcher Farm, Lubbock Co., TX – 2006 % Regrowth 14 DAIT



Blizzard Cotton Defoliation Performance in South Texas - 2006



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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