2011 WEED MANAGEMENT EXPERIMENTS
COTTON; VEGETABLES; WHEAT

Dr. A. Stanley Culpepper
Professor and Extension Weed Specialist
University of Georgia
Department of Crop and Soil Sciences
Tifton, GA



INTRODUCTION

The experiments summarized in this report are designed to develop data to support extension weed management recommendations for cotton, small grains, and vegetables. Additionally, these experiments demonstrate new and/or proven management practices to growers, county extension agents, agribusiness personnel, and other extension specialists.

Replicated experiments are established for specific needs and are located on university stations or private farms. The experiments are a joint effort of the University of Georgia Extension personnel, county extension personnel, cooperating research personnel, and cooperating growers. Many commodity organizations and chemical companies provide support of these experiments.

This publication contains results of use patterns of herbicides, some of which may not be registered for the particular use. Such results are included for informational purposes only and should not be taken as recommendations for use. Additionally, the University of Georgia does not guarantee nor warrant the standards of the products, nor do they imply approval of the products to the exclusion of others which may be similarly effective.

Questions or comments concerning this report may be directed to the author:

Dr. A. Stanley Culpepper
229-386-3328
stanley@uga.edu




CONTRIBUTORS

This research could not have been conducted without the support of the following individuals or organizations:

County Extension Agents Commodity Organizations Industry
BASF, Bayer CropScience, Cheminova, Dow AgroSciences, DuPont, Helena, Makhteshim Agan, Monsanto, Nova Source, Syngenta, Taminco, UPI, Valent

University of Georgia
Research Stations:
Attapulgus Research Station, Ponder Farm Research Station
Technicians:
Jessica Daniels, Jess Parker, Tim Richards
Post Doctorial Research Associate:
Lynn Sosnoskie
Data Entry:
Leanne Chafin
Student Workers:
April Richards, Jenna Smith, Ansley Burgess



TRIALS

Cotton
C2-11Palmer amaranth response to LL and RR systems with varying levels of rye residue
C3-11 Impact of rye time of seeding, rye seeding rate, and fertilier on rye biomass at time of planting cotton.
C4-11 Comparing rye and black oats as a mulch for reducing Palmer emergence in cotton.
C5-11 Cotton preplant burndown of weeds with ET mixed with Cotoran or Diuron.
C6-11 Early season Palmer response to Staple programs.
C7-11 V-10206 plus Cobra applied at cotton layby.
C8-11 Cotton and pigweed response to Fierce.
C9-11 Evaluting the need for residual preplant herbicides in heavy rye residue.
C10-11 Comparing band or broadcast herbicide applications in heavy residue systems.
C11-11 Palmer amaranth seed return as impacted by weed management program.
C14-11 GR Palmer response to directed applicatons of Layby Pro, Diuron, MSMA, and ET.
C15-11 Palmer response to Ignite applied with various spray tips, pressure, and speed.
C16-11 Managing Palmer amaranth with Ignite plus Cotoran systems.
C17-11 Dryland GR Palmer amararanth and cotton response to Zidua systems.
C18-11 Length of residual control of AMAPA in no till PHY WRF Cotton.
C19-11 Palmer amaranth response to glyphosate and glufosinate based programs.
C25-11 Seven inch GR AMAPA response to glyphosate/dicamba premixes.
C34-11 Multi species screening with various flumioxazin formulations.
C35-11 Potential for ProGibb to improve cotton recovery from herbicide injury.
C36-11 GR Palmer response to Reflex applied PPI or PRE.
C37-11 Mixtures of Staple LX, Dual, Warrant and glyphosate applied over 2-lf cotton.
C38-11 Warrant preplant and PRE tolerance in strip till RR cotton.
C39-11 Determine the impacts of Palmer amaranth plant debris on cotton fiber.
C40-11 PHY 499 WRF cotton response to herbicide injury from Ignite mixtures with and without PROGIBB.
C41-11 Cotton response to Sandea applied preplant or PRE
C42-11 Cotton and weed response to Dawn preplant and PRE.
C43-11 Pyrimax Tank Mix Combinations with Cotoran, Diuron and Cotton Pro PRE in Cotton.
C44-11 Stoneville 4145 LL B2 and PHY 499 WRF cotton response to glufosinate systems.
C45-11 LL cotton response to Staple + Ignite alone or mixed with Warrant/Dual Magnum.
C46-11 Diuron, prometyrn, and fluometuron applied PRE on sandy soils.
C54-11 Impact of Sustain on residual weed control by Reflex + Prowl.
C55-11 Cotton response to Zidua applied PRE or POST (weed free).
C56-11 PHY 375 WRF cotton response to Ignite systems.
C57-11 Safening cotton injury from glyphosate + Dual, Staple or Warrant and Ignite or Ignite + Dual Magnum.
C58-11 Cotton PD herbicide options.
C64-11 Dryland cotton response to simulated drift rates of 2,4-D and mowing.
C65-11 Irrigated cotton response to simulated drift rates of 2,4-D and mowing.
C66-11 Cotton response to Zidua applied PRE or POST (weed free).
C67-11 Influence of PROGIBB on cotton injury/recovery with Ignite in Widestrike cotton.
C68-11 Impacts of HM1028 and/or HM0128 on Ignite mixtures applied to PHY 499 WRF cotton.
C69-11 Germinating cotton response to residual soil herbicides when influenced with cotton vigor, seed depth, and irrigation.
C70-11 Germinating cotton response to residual soil herbicides when influenced with cotton vigor, seed depth, and irrigation.
C72-11 Cotton and Palmer amaranth response to Sonar, Reflex, and Warrant.


Vegetables
Veg1-11 Sweet corn response to Capreno and Laudis.
Veg1B (plantback)-11 Capreno and Laudis applications in sweet corn impact on the following cole crop.
Veg2-11 Cantaloupe and weed response to BayFilm Mulch systems with halosulfuron and fumigants.
Veg3-11 Pepper and weed response to the 3-WAY under LDPE, Blockade, and Saranex mulches.
Veg4-11 Watermelon and nutsedge response to Paladin + Pic and the WSP in narrow mulched beds.
Veg5-11 Pepper and weed response to Paladin Pic alone or in a system with Devrinol and/or Dual Magnum
Veg6-11 Intercropping watermelon and cotton with multiple herbicide systems & plantings.
Veg7-11 Intercropping cantaloupe and cotton with multiple herbicide systems & plantings.
Veg8-11 Pepper and weed response to the Paladin Pic and the 2010 WSP under Blocakde and Saranex mulch.
Veg9-11 Sweet corn and weed reponse to Atrazine mixed with Laudis, Accent, Steadfast, and Callisto.
Veg10-11 Watermelon and nutsedge response to Paladin + Pic and the WSP in narrow mulched beds. (location 2)
Veg11-11 Watermelon and weed response to narrow row BIG mulches.
Veg12-11 Bell pepper, eggplant, and weed response to Paladin + Pic or WSP under Blockade and Vapor Safe mulches.
Veg13-11 Seeded and transplant squash response to Reflex, Sandea, and Chateau.
Veg14-11 Seeded pumpkin response to Reflex.
Veg17-11 Vegetable response to Reflex carryover when applied bareground or under mulch.
Veg18-11A Transplant pepper, tomato, eggplant, cucumber, and watermelon response to Sinbar and Direx.
Veg18-11B Grain sorghum, wheat, cotton, squash and sweet corn response to Direx or Sinbar.
Veg19-11 Sweet corn response to Ignite POST.
Veg20-11 Sweet corn response to Cadet.
Veg21-11 Sweet corn and weed response to Impact mixtures applied POST.
Veg23-11 Seeded turnip green response to Dual Magnum PRE and POST.
Veg24-11 Seeded snap bean response to Dual Magnum PRE and POST.
Veg27-11 Cucumber and grass response to clethodim formulations and adjuvants.
Veg28-11 Sweet potato response to Valor applied pretransplant.
Veg30-11 Cucumber response to clethodim formulations.
Veg31-11 Sweet corn using Counter insecticide and weed reponse to Atrazine mixed with Laudis, Accent or Steadfast Q.
Veg32-11 Sweet corn and weed reponse to Atrazine mixed with Laudis, Accent, Steadfast,
Veg33-11 Transplant squash response to Devrinol applied before and after planting.
Veg34-11 Bell pepper and weed response to Pic Chlor 40, Pic Chlor 60, and PaladinPic
Veg35-11 Pepper and weed response to BayFilm Mulch. FALL
Veg36-11A Pepper, tomato, and weed response to WSP formulations.
Veg36-11B Tomato and weed response to WSP formulations, UGA 3-WAY, Paladin Pic and MB.
Veg37-11 Transplant cucumber response to Devrinol applied before and after planting.
Veg38-11 Seeded cucumber response to Devrinol or Dual Magnum applied PRE or at emergence.
Veg39-11 Seeded squash response to Devrinol PRE and at emergence.
Veg40-11 Obsession II sweet corn and weed response to Roundup weed management systems.


Wheat
Wheat2-11 Wheat, ryegrass, and radish response to BAS 94461H.
Wheat3-11 Wheat, ryegrass, and henbit response to BAS 94461H.
Wheat4-11 Wheat and ryegrass response to Axiom and Osprey.
Wheat5-11 Wheat, ryegrass, and henbit response to Axiom and Osprey.
Wheat6-11 Wheat, ryegrass, and radish response to Diuron and Dual Magnum
Wheat8-11 Wheat and henbit response to ET applied in water or UAN.
Wheat10-11 Wheat and ryegrass response to PowerFlex 7.5 WG and the new hi load pyroxsulam (fall applications).
Wheat11-11 Wheat and ryegrass response to PowerFlex 7.5 WG and the new hi load pyroxsulam (spring applications).
Wheat12-11 Annual bluegrass control with PowerFlex alone or mixed with Sencor. (fall applications).
Wheat14-11 Wheat and ryegrass response to BAS 94461H applied preplant or PRE.
Wheat15-11 Wheat and ryegrass response to PowerFlex 7.5 WG and the new hi load pyroxsulam (fall applications).
Wheat16-11 Annual bluegrass control with PowerFlex alone or mixed with Sencor. (spring applications)




PESTICIDE PRECAUTIONS

ATTENTION ! Pesticide Precautions
  1. Observe all directions, restrictions, and precautions on pesticide labels. It is dangerous, wasteful, and illegal to do otherwise
  2. Store all pesticides in original containers with labels intact and behind locked doors. “KEEP PESTICIDES OUT OF REACH OF CHILDREN.”
  3. Use pesticides at correct label dosages and intervals to avoid illegal residues or injury to plants and animals.
  4. Apply pesticides carefully to avoid drift or contamination of non-target areas.
  5. Surplus pesticides and containers should be disposed of in accordance with label instructions so that contamination of water and other hazards will not result.
  6. Follow directions of the pesticide label regarding restrictions as required by State an Federal Laws and Regulations
  7. Avoid any actions that may threaten an Endangered Species of its habitat. Your county extension agent can inform you of Endangered Species in your area, help you identify them and through the Fish and Wildlife Office, identify actions that may threaten Endangered Species of their habitat.