2008

 

WEED MANAGEMENT TESTS

 

 

 

 

 

COTTON, VEGETABLES, WHEAT

 

DR. A. STANLEY CULPEPPER

 

 

 

 

 

UNIVERSITY OF GEORGIA

 

TIFTON, GEORGIA

 

 

 

 

 


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 personnel, agribusiness personnel, and other extension specialist.

 

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 information 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.

 

 


Contributors

 

This research would not have been possible without the support of the following individuals or organizations:

 

County Extension Agents

Tim Flanders – Berrien County

Jeremy Kichler – Macon County

Scott Brown – Colquitt County

 

Commodity Organizations

Cotton Foundation

Cotton Incorporated

Georgia Cotton Commission

Georgia Vegetable Growers Associations

IR-4

United States Department of Agriculture

 

Industry

AMVAC                                      FMC          

Arysta LifeScience                        Gowan

BASF                                           Makhteshim

Bayer CropScience                       Monsanto

Chemnova                                    Syngenta

Delta and Pine Land                      UPI

Dow AgroSciences                       Valent

DuPont                                        

 

University of Georgia

Attapulgus Research Station

Plains Research Station

Ponder Farm Research Station

 

Technicians

            Kevin Baldree

            Jessica Daniels

            Jess Parker

 

Post Doctoral Research Associate

            Lynn Sosnoskie

 

Data Entry

            Leanne Chafin

 

Student Workers

            Jill Chafin

            April Clark

            Melissa Synder

            John Walker

 


Index of Experiments

 

 

Experiment

Number                       Title

 

Cotton Experiments

 

C1-08                 Impact of cover crop on managing glyphosate-resistant Palmer amaranth.

C2-08                 Applying Valor preplant burndown for the residual control of glyphosate-resistant Palmer amaranth.

C3-08                 Residual control from preplant burndown applications of Staple. USA-08-902

C4-08                 Glyphosate-resistant Palmer amaranth response to Valor and Cobra programs. Prot (67.01)

C5-08                 Glyphosate-resistant Palmer amaranth response to Staple/Ignite systems. Prot (USA-900 SE 2)

C6-08                 GR Palmer amaranth management in Roundup Ready Flex cotton

C8-08                 Glyphosate-resistant Palmer amaranth response to V-10206 mixtures at layby.

C9-08                 GR Palmer amaranth response to Staple, Direx, and Reflex programs. Prot (USA-900 SE)

C10-08               GR Palmer amaranth response to Reflex and Prefix directed at layby. Prot (HFM101A4)

C12-08               Screening Palmer amaranth for multiple resistance to glyphosate and Staple in the field.

C15-08               Large plot GR Palmer amaranth management systems.

C17-08               Glyphosate-resistant Palmer amaranth response to 2,4-D, dicamba, and glufosinate

C18-08               GR Palmer amaranth and Roundup Ready cotton response to burndown herbicides. Prot (Mak1)

C19-08               Glyphosate-resistant Palmer amaranth response to Blizzard.

C20-08               Large GR Palmer amaranth response to burndown herbicides. Prot (Mak1)

C21-08               Managing glyphosate-resistant Palmer amaranth in Roundup Ready and Liberty Link cotton.

C22-08               Impact of strip-tillage on Valor's ability to control Palmer amaranth.

C23-08               Impact of deep tillage on the control of glyphosate-resistant Palmer amaranth.

C24-08               Controlling GR Palmer amaranth at layby without MSMA.

C25-08               Winter weed response to ET mixtures.

C26-08               Wild radish, primrose, and wheat response to burndown herbicides.

C27-08               Impact of strip-tillage on Valor's ability to injure cotton.

C28-08               Cotton response to Valor applied preplant followed by Reflex PRE.

C29-08               Cotton response to Valor applied preplant followed by Reflex PRE.

C30-08               Cotton response to mixtures of Staple, Sequence, and glyphosate. (08/903)

C31-08               Cotton response to Staple and diuron applied preplant. (08-904)

C35-08               Cotton response to mixtures of Staple, Sequence, and glyphosate. (08/903)

C36-08               Metolachlor and diuron applied POST in cotton. Prot (MEC-08-2a)

C37-08               Pitted morningglory, doveweed, and spiderwort response to directed herbicides. Prot (diu-08-1b)

C39-08               Cotton and weed response to residual at-plant herbicide mixtures. Mak3

C40-08               Managing glyphosate-sensitive Palmer amaranth in Roundup Ready Flex Cotton. Mon 2008-01-99-02

C45-08               RR cotton and weed response to various Mon formulations. Prot (2008-01-09-02)

C47-08               RR cotton and weed response to various Mon formulations. Prot (2008-01-09-02)

C52-08               Glyphosate-resistant Palmer amaranth response to glyphosate, Ignite, Remedy, Clarity, Weedar, Direx, MSMA, and Valor.

C54-08               Controlling GR Palmer amaranth at layby without MSMA.

C55-08               Controlling large GR Palmer amaranth with Remedy, Weedar, Clarity and Ignite.

 

 

Vegetable Experiments

 

Veg1-08             Seeded onion response to Dual Magnum, Outlook, and Prowl H20.

Veg2-08             Seeded onion weed management systems.

Veg3-08             Seeded onion response to low rates of Reflex and Cadre simulating carryover.

Veg4-08             Seeded cultivar response to Dacthal when planted at two depths.

Veg5-08             Transplant onion response to Dual Magnum, Outlook, Chateau, Goal, and Prowl.

Veg6-07             Transplant leek tolerance to Goal 2 XL POST.

Veg7-08             Nutsedge response to Pic Chlor 60 applied under three mulches.

Veg8-08             Squash, cucumber, collard, and cabbage response to V-10142 applied in the previous tomato crop.

Veg9-08             Large crabgrass and bell pepper response to various DMDS mixtures.

Veg10-08           Tomato, pepper, and cantaloupe plant back intervals following DMDS fumigation.

Veg11-08           Nutsedge and pepper response to various MIDAS mixtures.

Veg12-08           Tomato, pepper, eggplant, and watermelon response to Eptam.

Veg13-08           Tomato and pepper response to Eptam at various water regimes

Veg14-08           Pepper response to DMDS or DMDS and Telone in combination with herbicides.

Veg15-08           Large acreage on farm pepper and weed response to DMDS and the UGA 3-WAY.

Veg16-08           Long-Term Effects of Methyl Bromide Alternatives on Weeds, Diseases, & Nematodes YEAR 5 (crops 9 and 10)

Veg17-08           Determining plant back interval when applying the 3-Way fumigant system.

Veg18-08           Tomato, pepper, and cantaloupe response to Reflex.

Veg19-08           Tomato tolerance to metribuzin applied topically and directed.

Veg20-08           Cucumber response to Eptam and Dual Magnum.

Veg23-08           Sweet corn response to herbicides when planted in mulch.

Veg24-08           Ryegrass response to low rates of clethodim and Sandea to suppress growth.

Veg25-08           Crimson clover response to halosulfuron applied at blooming.

Veg26-08           Pepper and tomato weed management programs in bareground production.

Veg27-08           Pepper response to MIDAS plus Dual Magnum

Veg28-08           Weed and crop response to 3-WAY and DMDS plus herbicides.

Veg29-08           Tomato, pepper, cucumber, squash, collard, and cabbage response to Eptam applied under LDPE or Blockade mulch.

Veg30-08           Pepper, squash and cucumber response to DMDS and Telone II mixtures.

Veg31-08           Yellow squash tolerance to Goal applied prior to planting

Veg32-08           Cucumber tolerance to Goal applied prior to planting

Veg33-08           Tomato tolerance to V-10142 and V-10142's impact on the following broccoli crop.

Veg34-08           Broccoli and cabbage response to Goal and Dual overtop of mulch.

Veg35-08           Broccolli, cabbage, collard, kale response to numerous herbicides.

 

 

 

Wheat Experiments

 

Wheat1-08          Determine efficacy of pyroxsulam on ryegrass and wheat.

Wheat2-08          Wheat and ryegrass response to Prowl, Axiom, Osprey, Hoelon, and Axial.

Wheat3-08          Wild radish and wheat tolerance to pyroxsuluam.

Wheat4-08          Wheat, Rye, Oats, and ryegrass response to Chateau and Dual Magnum.

Wheat5-08          Wild radish and wheat tolerance to pyroxsuluam.

 

 

 


Index of Products

 

Product                                Experiments

2,4-D                                       C17-08, C18-08, C20-08, C25-08, C26-08, Wheat3-08, Wheat5-08

ADIGOR                                 Wheat1-08, Wheat2-08

AGRI-DEX COC                    C24-08, C54-08, Wheat1-08, Wheat3-08, Wheat5-08

Aim                                          C26-08, C37-08

AMS                                        C26-08

Atrazine                                    Veg23-08

Axial                                        Wheat2-08

AXIAL XL                              Wheat1-08

Axiom                                      Wheat2-08

BANVEL                                 Wheat3-08, Wheat5-08

Blizzard                                    C19-08

Blockade Mulch                       Veg12-08, Veg13-08, Veg14-08, Veg29-08

Breaking Land                          C23-08

Cadre                                       Veg3-08

Chateau                                    Veg5-08, Wheat4-08

Chloropicrin                             Veg16-08

Clarity                                      C3-08, C17-08, C18-08, C20-08, C52-08, C55-08

Cobra                                      C4-08, C24-08

Command                                Veg16-08, Veg26-08, Veg27-08

Cotoran                                    C3-08, C4-08, C6-08, C8-08, C15-08, C39-08, C40-08

Crop Oil                                   C3-08, C18-08, C19-08, C20-08, C25-08, C26-08, C37-08, C52-08

CT-301                                    C25-08

cultivation                                 C15-08

Dacthal                                     Veg2-08

Dead cover                              C2-08

Direx                                        C1-08, C3-08, C4-08, C5-08, C8-08, C9-08, C21-08, C23-08, C24-08, C31-08, C52-08, C54-08, Veg3-08

Diuron                                      C6-08, C10-08, C15-08, C18-08, C19-08, C20-08, C25-08, C26-08, C36-08, C37-08, C39-08, C40-08

DMDS                                     Veg14-08, Veg28-08

DP 555 BRR                            C21-08

Dual Magnum                           C1-08, C4-08, C9-08, C21-08, C23-08, C30-08, C35-08, C36-08, C40-08, Veg1-08, Veg2-08, Veg5-08, Veg14-08, Veg16-08, Veg18-08, Veg20-08, Veg23-08, Veg26-08, Veg27-08, Veg28-08, Veg33-08, Veg34-08, Veg35-08, Wheat4-08

Durango                                   C52-08, C55-08

Envoke                                     C37-08

Eptam                                      Veg12-08, Veg13-08, Veg14-08, Veg20-08, Veg28-08, Veg29-08

ET                                            C25-08

Express                                    C26-08

Firestorm                                  C25-08

Fluometuron                             C37-08, C39-08

Galigan                                     C18-08, C20-08

Goal                                         Veg2-08, Veg31-08, Veg32-08, Veg34-08

Goal 2XL                                 Veg6-07

GoalTender                              Veg5-08

Gramoxone Inteon                    C3-08, C6-08, C24-08, C26-08, C54-08

GRASP SC                              Wheat3-08, Wheat5-08

Green cover                             C2-08

HARMONY EXTRA              Wheat3-08, Wheat5-08

Heavy Watering                        Veg13-08

HOELON                                Wheat1-08, Wheat2-08

Holes in mulch                          Veg34-08

Ideal Watering                          Veg13-08

Ignite                                        C1-08, C5-08, C17-08, C21-08, C52-08, C55-08

Ignite 280                                 C24-08

Lasso Micro Tech                    C40-08

LDPE                                       Veg12-08, Veg29-08

Linex                                        C37-08

methyl bromide                         Veg16-08

Metribuzin                                Veg19-08

MIDAS                                    Veg16-08, Veg27-08

MON 76186                            C45-08, C47-08

MON 76236                            C45-08, C47-08

MON 76237                            C45-08, C47-08

MON 76238                            C45-08, C47-08

MON 76301                            C45-08, C47-08

MON 76410                            C45-08, C47-08

MON 76415                            C45-08, C47-08

MON 79614                            C45-08, C47-08

MON 79616                            C45-08, C47-08

MON 79685                            C45-08, C47-08

MON 79790                            C45-08, C47-08

MSMA                                    C1-08, C4-08, C10-08, C15-08, C19-08, C21-08, C23-08, C37-08, C52-08

MSMA 6 Plus                          C24-08, C54-08

MSO                                       Wheat3-08, Wheat5-08

NAI-1500                                C25-08

No deep tillage                         C23-08

No holes in mulch                     Veg34-08

Non-ionic surfactant                 C9-08, C10-08, C12-08, C31-08, C52-08, Veg19-08, Veg23-08, Veg24-08, Veg25-08, Veg26-08, Veg33-08, Wheat1-08, Wheat2-08, Wheat3-08, Wheat5-08

No-tillage                                 C22-08, C27-08, C28-08, C29-08

Oat                                          C1-08

OSPREY                                 Wheat1-08, Wheat2-08, Wheat3-08, Wheat5-08

Outlook                                    Veg1-08, Veg5-08

Parallel PCS                             C36-08, C37-08, C39-08

Parazone                                  C18-08, C20-08

Parrlay                                     C6-08, C15-08, C40-08

PENDIMAX                            Wheat1-08

Pic Chlor 60                             Veg12-08, Veg13-08, Veg29-08

Prefix                                       C10-08

Prometryn                                C37-08, C39-08

Prowl                                       C1-08, C4-08, C6-08, C10-08, C15-08, C21-08, C23-08, C39-08, C40-08, Veg1-08, Veg2-08, Veg5-08, Veg35-08, Wheat2-08

PYROXSULAM                     Wheat1-08, Wheat3-08, Wheat5-08

Rage D-Tech                            C26-08

Reflex                                       C1-08, C5-08, C6-08, C9-08, C10-08, C15-08, C21-08, C23-08, C24-08, C28-08, C29-08, C39-08, C40-08, Veg3-08, Veg14-08, Veg18-08, Veg26-08, Veg28-08, Veg33-08

Remedy                                    C52-08, C55-08

Roundup PowerMax                C3-08, C4-08, C8-08, C9-08, C15-08, C30-08, C35-08

Roundup WeatherMax             C1-08, C6-08, C10-08, C12-08, C18-08, C20-08, C21-08, C23-08, C25-08, C26-08, C36-08, C40-08, Veg26-08

Sandea                                     Veg23-08, Veg24-08, Veg25-08, Veg26-08, Veg33-08

Select                                       Veg24-08

Select Max                               Veg26-08

Sencor                                     Veg19-08, Veg26-08

Sequence (GBL4FO2TD2)      C30-08

Sequence (GBL6A20T99)       C30-08, C35-08

Spike                                       Wheat4-08

Staple                                       C4-08, C5-08, C10-08, C21-08, C37-08

Staple LX                                 C3-08, C5-08, C6-08, C9-08, C12-08, C24-08, C30-08, C31-08, C35-08, C39-08, C40-08

Strip Tillage                              C22-08, C27-08, C28-08, C29-08

Suprend                                   C24-08, C37-08

Telone C35                              Veg16-08

Telone II                                  Veg14-08, Veg16-08

Touchdown Total                     C10-08, C30-08, C35-08

Treflan                                      C15-08, C23-08

UAN                                        Wheat1-08, Wheat2-08, Wheat3-08, Wheat5-08

V-10126                                  C27-08

V-10142                                  Veg8-08, Veg33-08

V-10206                                  C8-08, Veg35-08

Valor                                        C2-08, C3-08, C4-08, C6-08, C8-08, C10-08, C15-08, C20-08, C22-08, C24-08, C26-08, C27-08, C28-08, C29-08, C37-08, C52-08, C54-08, Veg35-08

Vapam                                     Veg2-08, Veg16-08

VIF                                          Veg16-08

Weedar                                    C52-08, C55-08

 

 


Index of Locations

 

Location                               Experiment

Attapulgus                    C39-08, C40-08, C47-08

Chula                           Veg31-08, Veg32-08

Jones Farm                   C25-08

Lee County                  Veg25-08

Lewis Taylor Farms      Veg6-07

Macon County             C1-08, C2-08, C3-08, C4-08, C5-08, C6-08, C8-08, C9-08, C10-08, C12-08, C15-08, C17-08, C18-08, C19-08, C20-08, C21-08, C22-08, C23-08, C24-08, C52-08, C54-08, C55-08

Plains                           Wheat1-08, Wheat2-08

Ponder farm                 C26-08, C27-08, C28-08, C29-08, C30-08, C31-08, Veg7-08, Veg8-08, Veg9-08, Veg10-08, Veg11-08, Veg12-08, Veg13-08, Veg14-08, Veg23-08, Veg24-08, Veg26-08, Veg27-08, Veg28-08, Veg29-08, Veg33-08, Veg34-08, Veg35-08, Wheat3-08, Wheat4-08, Wheat5-08

Sunbelt Expo                C35-08, C36-08, C37-08, C45-08

Tifton                           Veg16-08, Veg18-08

TVP                             Veg17-08, Veg19-08, Veg20-08, Veg30-08

TyTy                            Veg15-08

Vidalia Onion Farm      Veg4-08, Veg5-08

VORF                          Veg1-08, Veg2-08, Veg3-08

 

 

 
Important Links

 

 

University of Georgia Links:

 

University of Georgia

 

UGA College of Agriculture and Environmental Sciences

 

UGA Department of Crop and Soil Science

 

UGA Weed Science

 

 

Cooperative Extension Service Links:

 

Georgia Cooperative Extension Service

 

2009 Georgia Pest Management Handbook

 

 

Other Links:

 

Adobe Systems Incorporated (Acrobat Reader download)