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- GRAIN SORGHUM WEED CONTROL UPDATE 2016 Eric P. Prostko, Ph.D. Professor and Extension Weed Specialist Dept. Crop & Soil Sciences
- 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 - 2015 SG-01-15 May 26 49 DAP NTC Warrant @ 48 oz/A PRE Atrazine @ 48 oz/A 23 DAP COC @ 1% v/v 23 DAP
- 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)
- Weed Control in Grain Sorghum - 2015 SG-01-15 May 26 49 DAP NTC Dual II Magnum @ 16 oz/A PRE Huskie @ 13 oz/A 23 DAP Atrazine @ 16 oz/A 23 DAP AMS Xtra @ 2.5% v/v 23 DAP NIS @ 0.25% v/v 23 DAP
- 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
- Dont Plant Sorghum in Fields Treated with Reflex in the same year!!!!
- GRAIN SORGHUM Harvest Aids Initial moisture was 24.4% Source: Olson et al. 2001
- Canola Weed Control
- 2014 GA Canola Production 8765.78 acres planted (28 counties) Source: FSA Crop Acreage Data Report (January 2015)
- Canola Weed Management consider herbicide residues from previous crop Optimum Planting Date/Fertility Use Treflan if you can Clearfield Canola + Beyond may be best overall legal option Critical period for weed control in canola is 4 leaf stage (17-38 DAP)
- Do not plant canola is fields treated this year with the following herbicides: Reflex Prefix Staple (could plant Clearfield*) Cadre (could plant Clearfield*) Steadfast Q (maybe Clearfield*?) Strongarm (maybe Clearfield*?) Envive (could plant Clearfield*) Classic (could plant Clearfield*) Envoke (could plant Clearfield*) Diuron (???) *Some crop stunting may still likely occur.
- Clearfield Canola (5525CL) Response to Reflex 2015/2016 CAN-02-15 11/11/2015 30 DAT NTC Reflex 2SL @ 8 oz/A Reflex 2SL @ 4 oz/A Reflex 2SL @ 2 oz/A
- Current UGA Canola Weed Control Research Howard F. Schwartz, Colorado State University, Bugwood.org
- Henbit and Ryegrass Control? ** Command and Dual Magnum are NOT yet labeled for use in canola grown in GA. Research is underway to evaluate crop and weed response.
- Canola Weed Control 2015/2016 CAN-01-15 11/11/2015 30 DAT NTC Command 3ME @ 3.5 oz/A - PRE
- Command 3ME Injury on Canola - 2 WAT
- Registration Status for Command and Dual Magnum in Canola submitted required information to IR-4 Program in July 2013 Command received an A priority at IR4 September 2015
- Sesame Weed Control (~9533 Acres in GA in 2015)
- Weed Control in Sesame - 2015 SM-02-15 June 30 68 DAP NTC Dual Magnum 7.62EC @ 16 oz/A PRE + Direx 4L @ 32 oz/A POST (36 DAP) NIS @ 0.25% v/v POST (36 DAP) Warrant 3ME @ 48 oz/A PRE + Direx 4L @ 32 oz/A POST (36 DAP) NIS @ 0.25% v/v POST (36 DAP)
- Sesame Demo August 11, 2015 19 DAT Planted/Sprayed July 23 NTC Dual Magnum 16 oz/A Warrant 48 oz/A Direx 32 oz/A 7/23- 0.3 I 7/27 0.5 I 7/28 0.06 R 7/29 0.37 R 7/30 0.04 R 7/31 0.16 R 8/1 0.06 R 8/2 0.71 R 8/6 1.44 R 8/7 0.03 R 8/11 1.21 R
- Sesame Demo September 9, 2015 48 DAT Planted/Sprayed July 23 7/23- 0.3 I 7/27 0.5 I 7/28 0.06 R 7/29 0.37 R 7/30 0.04 R 7/31 0.16 R 8/1 0.06 R 8/2 0.71 R 8/6 1.44 R 8/7 0.03 R 8/11 1.21 R NTC Dual Magnum 16 oz/A Warrant 48 oz/A Direx 32 oz/A
- Sesame Demo October 8, 2015 77 DAT Planted/Sprayed July 23 7/23- 0.3 I 7/27 0.5 I 7/28 0.06 R 7/29 0.37 R 7/30 0.04 R 7/31 0.16 R 8/1 0.06 R 8/2 0.71 R 8/6 1.44 R 8/7 0.03 R NTC Dual Magnum 16 oz/A Warrant 48 oz/A Direx 32 oz/A Dual Warrant Direx
- The New Norm????
- Is this a bad combination???? 6 ft
- Farm vs. Research? Concerns Tractor Speed Boom Height Coverage Quality vs. Quantity?
- Herbicide Efficacy Coverage Nozzle Type GPA Pressure Boom Height Tractor Speed
- Materials and Methods July 24, 2015 Melroe 3430 Spra-Coupe Tractor Speeds 4.4, 6.5, and 9.5 MPH Boom Heights 30, 45, 60 in Wind = 3.0 MPH 15 GPA (water + dye) DG TeeJet Drift Guard Nozzle Tips (20 spacing) 8002DG, 8003DG, 8004DG 40-53 PSI Medium Droplet Size 2 locations in sprayer path 8 from tractor center (L1) 30 parallel from L1 (L0) 5 Kromekote cards (2 X 3) 10 apart Dropletscan (WRK of Arkansas, LLC)
- 10 30 8
- Tractor Speed Effects on Spray Coverage (%) 30 Boom Height N = 30
- Tractor Speed Effects on Spray Coverage (%) 60 Boom Height N = 30
- Spray Coverage - 60 Boom Height 4.4 MPH 6.5 MPH 9.5 MPH
- QUESTIONS? eprostko@uga.edu www.gaweed.com
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