2010 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, sorghum, and 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 –8.2.3 (ARM) computer program. All results are available in electronic format upon request.

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
BASF, Bayer, Cheminova, Dow AgroSciences, DuPont, FMC, GrassWorks Weed Wiper LLC, Helena, LMC-Cross, Loveland, Monsanto, Nichino, Pioneer, Smucker Manufacturing, Syngenta, UPI, Valent


University of Georgia
Attapulgus Research Station Staff, Stanley Culpepper, Tim Grey, Ted Webster, Carroll Johnson - III, Lynn Sosnoskie, Charlie Hilton, Jesse Parker, Dena Watson, Bob Kemerait, David Tyson, Jared Whitaker.



TRIALS

Field Corn
CN-01-10Weed Control in Field Corn with Corvus and Balance Flexx - I
CN-02-10 Weed Control in Field Corn with Corvus and Balance Flexx - II
CN-03-10 GR-Pigweed Control with HPPD Herbicides and No Atrazine
CN-04-10 Adding Prowl H20 to Common POST Treatments in Field Corn - I
CN-05-10 Adding Prowl H20 to Common POST Treatments in Field Corn - II
CN-07-10 Accent vs. Nic-It vs. Samson for Weed Control in Field Corn - I
CN-08-10 Accent vs. Nic-It vs. Samson for Weed Control in Field Corn - II
CN-12-10 Corn Insecticide Interactions with Resolve Q and Steadfast Q
CN-13-10 Balance Flexx, Corvus, Laudis, and Capreno Systems for Field Corn
CN-14-10 Laudis and Capreno in Field Corn
CN-15-10 Cadet Tank-Mixes For Weed Control in Field Corn
CN-16-10 Controlling RR Corn for Replanting
Peanut
PE-01-10 Peanut Response to Ignite
PE-02-10 Does FL-07 Respond Differently to Peanut Herbicides?
PE-03-10 Weed Control in Peanut with POST Pyroxasulfone - I
PE-04-10 Weed Control in Peanut with POST Pyroxasulfone - II
PE-05-10 Peanut Tolerance to POST Applied Pyroxasulfone
PE-06-10 FL-07 Response to Gramoxone Inteon
PE-07-10 Tifguard Response to Gramoxone Inteon
PE-08-10 FL-07 Response to Classic
PE-09-10 Tifguard Response to Classic
PE-10-10 ET for POST Weed Control in Peanut
PE-11B-10 LPOST Applications of ET, Ultra Blazer, and Cobra for Palmer Amaranth Control
PE-12-10 ET vs. Gramoxone in Peanut
PE-13-10 POST Pyroxasulfone Combinations for Peanuts – Year 2
PE-15-10 Peanut Response to Direx
PE-16-10 Spartan Charge and Authority Assist for Weed Control in Peanut
PE-17-10 Sharpen for Weed Control in Peanut
PE-18-10 Day or Night Spraying of Herbicide/Fungicide Tank-Mixes
PE-19-10 Cadre, Dual Magnum, 2,4-DB, and Bravo WS Combinations
SORGHUM
SG-01-10 Huskie, Sharpen, and Milo-Pro for Weed Control in Grain Sorghum
SOYBEAN
SB-01-10 GR-Palmer Amaranth Control Using the Liberty-Link System
SB-02-10 Tackle for Burndown and POST Weed Control in Soybeans
SB-03-10 What Does ET Do to GR-Palmer Amaranth?
SB-05-10 Dawn and Rhythm vs. Flexstar in Soybeans
SB-06-10 Dawn EPP and PRE Weed Control in Soybean
SB-07-10 Palmer Amaranth Control with Residual Systems
SB-08-10 Soybean Variety Response to Metribuzin Products – Year 2
SB-10-10 Weed Control in LL Soybeans - II
SB-14-10 Weed Control in Soybean with Fierce
SB-15-10 Authority MTZ and Authority Broadleaf for Weed Control in Soybean
SB-16-10 Cadet Tank-Mixes for Weed Control in Soybeans
SB-19-10 New Soybean Variety Response to Boundary
MISCELLANEOUS
PIG-01-10 Paraquat Rates for Palmer Amaranth Control in WeedWiper
PIG-03-10 WeedWiper vs. WickMaster with Gramoxone Inteon for Palmer Amaranth Control
PIG-05-10 Ignite for Palmer Amaranth Control Using the WeedWiper
PIG-06-10 WeedWiper vs. LMC-Cross Wick Bar for Palmer Amaranth Control
PIG-07-10 WeedWiper vs. Top Crop Super Sponge for Palmer Amaranth Control
PRIM-01-10 Cutleaf Eveningprimrose Control with POST Peanut Herbicides in the Greenhouse
PRIM-02-10 Cutleaf Eveningprimrose Control with POST Peanut Herbicides in the Field



2010 TEMPERATURE/RAINFALL 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-10-1115                      November, 2010

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