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Grain Sorghum Weed Control Update - 2015
AUTHOR
Eric P. Prostko
Professor and Extension Weed Specialist
University of Georgia
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TABLE OF CONTENTS
Grain Sorghum Weed Control Update - 2015
Grain Sorghum Weed Control Update
Weed Control in Grain Sorghum - 2013
A New Product to Consider?
Huskie Weed Control/Injury - 2014
Huskie Injury on Sorghum
Huskie Rotation Restrictions (cotton and peanut are not listed)
Inzen Z Grain Sorghum
Weed Control in Inzen Sorghum - 2014
Don't Plant Sorghum in Fields Treated with Reflex in the same year!!!!
Current UGA Canola Weed Control Research
NTC vs. Dual Magnum @ 3.5 oz/A + Command @ 3.5 oz/A - PRE
Canola Response to PRE Applied Reflex - 35 DAT
Must be timely with Beyond in canola! 1 week too late
Questions or Comments?
SLIDE CONTENTS
GRAIN SORGHUM WEED CONTROL UPDATE – 2015 Eric P. Prostko, Ph.D. Extension Weed Specialist Berrien Co, October 2014
GRAIN SORGHUM WEED CONTROL Start clean! Concep treated seed Dual Magnum or Warrant (PRE) Atrazine (POST) Paraquat (Hooded sprayer) Mechanical Cultivation
Weed Control in Grain Sorghum - 2013 SG-02-13 June 3 41 DAP NTC Dual II Magnum 7.64EC @ 1 pt/A (PRE) Aatrex 4L @ 48 oz/A (POST) COC @ 1% v/v (POST)
A New Product to Consider? Huskie 2.06EC Bayer CropScience Buctril (1.75 lbs/gal) + pyrasulfotole (0.31 lbs/gal) MOA = 6 + 27 Postemergence (13-16 oz/A) 3-leaf to 12” tall sorghum Broadleaf weeds, good on pigweed Tank-mix with atrazine (16 oz/A)
Huskie Weed Control/Injury – 2014 NTC Huskie @16 oz/A Aatrex @ 16 oz/A AMS @ 1 lb/A NIS @ 0.25% v/v Huskie @16 oz/A AMS @ 1 lb/A NIS @ 0.25% v/v SG-02-14 May 19 7 DAT
Huskie Injury on Sorghum
Huskie Rotation Restrictions (cotton and peanut are not listed)
Inzen™ Z Grain Sorghum Kansas State Univ. DuPont/Advanta US Resistance to POST applications of ALS herbicides Non-GMO ALS-resistant shattercane Dual/Cinch/Warrant PRE a must in my opinion Concep treated seed Stewardship!!! Zest (liquid Accent)
Weed Control in Inzen Sorghum - 2014 SG-01-14 June 19 31 DAP NTC Dual II Magnum 7.62EC @ 16 oz/A – PRE Zest 0.33SC @ 12 oz/A – POST + Atrazine 90DF @ 13.3 oz/A – POST + COC @ 1% v/v - POST
Don’t Plant Sorghum in Fields Treated with Reflex in the same year!!!!
Current UGA Canola Weed Control Research Howard F. Schwartz, Colorado State University, Bugwood.org
NTC vs. Dual Magnum @ 3.5 oz/A + Command @ 3.5 oz/A – PRE CAN-01-14 11/21/14 35 DAT
Canola Response to PRE Applied Reflex - 35 DAT 8 oz/A 4 oz/A 2 oz/A CAN-02-14 11/21/14 Average field half-life for Reflex is 100 days
Must be timely with Beyond in canola! 1 week to late NTC Beyond 1AS @ 4 oz/A Adept @ 0.25% v/v AMS XTRA @ 2.5% v/v 2 WAT CAN-01-14 12/05/14
Questions or Comments? eprostko@uga.edu www.gaweed.com