2011 SUMMARY OF FIELD CROP WEED MANAGEMENT RESEARCH

Dr. Eric P. Prostko
Professor and Extension Weed Specialist
University of Georgia
Department of Crop and Soil Sciences



INTRODUCTION

The experiments summarized in this report are designed to develop data to support extension weed management recommendations for field corn, peanuts, soybeans. 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 faculty, county extension agents, cooperating research personnel, and cooperating growers. Commodity organizations and chemical companies provide financial 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.

The data in this report were analyzed using the Agricultural Research Manager - 8.3.4 (ARM) computer program.

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

Dr. Eric P. Prostko
Department of Crop & Soil Sciences
The University of Georgia
Horticulture Building
104 Research Way
Tifton, GA 31793



CONTRIBUTORS

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

County Extension Agents Farmer-Cooperators Commodity Organizations Industry
Ag South, AMVAC,BASF, Bayer, Cheminova, Drexel, Dow AgroSciences, DuPont, FMC, GrassWorks Weed Wiper LLC, Helena, Monsanto, Loveland, Nichino, Pioneer, Syngenta, UPI, Valent.


University of Georgia
Attapulgus Research Station Staff, Stanley Culpepper, Tim Grey, Ted Webster, Carroll Johnson - III, Charlie Hilton, Jesse Parker, Dena Watson, Bob Kemerait, Rand Merchant, Peter Eure.



TRIALS

Field Corn
CN-01-11Post-Harvest Corn Treatments for the Control of Palmer Amaranth - I
CN-01B-11 Post-Harvest Corn Treatments for the Control of Palmer Amaranth - II
CN-02-11 Counter with Realm Q, Resolve Q, and Steadfast Q
CN-03-11 Weed Control in Field Corn with Realm Q
CN-04-11 Corvus, Balance Flexx, Laudis, Impact, and Capreno for Weed Control in Field Corn
CN-05-11 Corvus, Balance Flexx, Capreno, Laudis, and Ignite for Weed Control in Field Corn – Two Pass Systems - I
CN-06-11 Corvus, Balance Flexx, Capreno, Laudis, and Ignite for Weed Control in Field Corn – Two Pass Systems - II
CN-07-11 Corvus, Balance Flexx, Capreno, and Laudis for Weed Control in Field Corn – One Pass Systems - I
CN-08-11 Corvus, Balance Flexx, Capreno, and Laudis for Weed Control in Field Corn – One Pass Systems - II
CN-09-11 Impact, Callisto, Capreno, and Laudis for Weed Control in Field Corn
CN-11-11 Zidua One Pass Programs in Field Corn
CN-12-11 Zidua Two Pass Programs in Field Corn
CN-14-11 Anthem for Weed Control in Field Corn – PRE/POST
CN-15-11 Steadfast Q vs. Prowl H2O for Residual Weed Control in Field Corn
CN-16-11 Cadet for Weed Control in Field Corn
CN-17-11 Ignite + Steadfast Q for Weed Control in Field Corn
CN-18-11 HPPD Herbicides for Weed Control in Field Corn


Peanut
PEANUT-01-11 Peanut Recrop Intervals for Rimsulfuron and Chlorimuron
PE-03-11 Peanut Tolerance to POST Applied Pyroxasulfone (Weed-Free) – Year 2
PE-07-11 Peanut Response to Ignite – Year 2
PE-10-11 Tifguard Response to Gramoxone Inteon
PE-12-11 Tifguard Response to Classic
PE-13-11 Georgia Greener Response to Classic
PE-14-11 Peanut Response to Direx – Year 2
PE-16-11 Current Peanut Weed Control Systems vs. Potential Pyroxasulfone Weed Control Systems - I
PE-16B-11 Current Peanut Weed Control Systems vs. Potential Pyroxasulfone Weed Control Systems - II
PE-17-11 Day or Night Spraying of Herbicide/Fungicide Tank-Mixes
PE-19-1 Peanut Response to 2,4-D Amine - I
PE-19B-11 Peanut Response to 2,4-D Amine - II
PE-20-11 Peanut Response to Warrant (Weed-Free)
PE-21-11 Weed Control Systems in Peanut with Warrant
PE-22-11 Peanut Response to Preplant Applications of Leadoff
PE-23-11 ET Tank-Mixtures for POST Weed Control
PE-26-11 Spartan Charge for Weed Control in Peanut


SOYBEAN
SB-03-11 Residuals with the LL Soybean System
SB-04-11 Residual Herbicides in the Liberty-Link Soybean Weed Control System
SB-05-11 ET + Flexstar for Weed Control in Soybean
SB-09-11 Rhythm and Dawn for Weed Control in Soybeans
SB-11-11 Early-Preplant Applications of Dawn for Weed Control in Soybeans
SB-13-11 Zidua Two Pass Programs for Soybean Weed Control
SB-14-11 Zidua PRE in Soybeans
SB-15-11 Early-Preplant Applications of Zidua for Weed Control in Soybeans - One Pass
SB-16-11 Early-Preplant Applications of Zidua for Weed Control in Soybeans
SB-18-11 Anthem for POST Weed Control in Soybeans
SB-19-11 Cadet-Soybean-POST
SB-20-11 Flexstar GT3.5 for GR Weed Control in Soybeans - I
SB-21-11 Flexstar GT3.5 for GR Weed Control in Soybeans - II
SB-23-11 Weed Control in RR Soybean Systems with Residuals
SB-25-11 Soybean Response to Direx


MISCELLANEOUS
PIG-01-11 WeedWiper Applicator Height Study – 50% Solution of Gramoxone Inteon – 30 RPM
PIG-02-11 WeedWiper Applicator Height Study – 50% Solution of Gramoxone Inteon – 42 RPM
PIG-06-11 Influence of Applicator Height on the Performance of the Grassworks WeedWiper
NC-05-11 Residual Weed Control with Zidua, Dual Magnum, and Warrant (Non-Crop)



2011 TEMPERATURE/RAINFALL DATA




2011 SUPPLEMENTAL IRRIGATION DATA



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.


PUBLICATION INFORMATION

Trade names are used only for information. The Cooperative Extension Service of The University of Georgia College of Agricultural and Environmental Sciences does not guarantee or warrant published standards on any product mentioned; neither does the use of a trade or brand name imply approval of any product to the exclusion of others which may also be suitable.

The Cooperative Extension Service of The University of Georgia College of Agricultural and Environmental Sciences offers educational programs, assistance, and materials to all people without regard to race, color, national origin, age, sex, or handicap status.

AN EQUAL OPPORTUNITY EMPLOYER
Crop and Soil Science Department


CSS-11-1115                      November, 2011

Issued in furtherance of Cooperative Extension work, Acts of May 8, and June 30, 1914, The University of Georgia College of Agricultural and Environmental Sciences and the U.S. Department of Agriculture cooperating.

J. Scott Angle, Dean & Director College of Agricultural and Environmental Sciences