Peanut Weed Control Update 2004 Eric P. Prostko Extension Weed Specialist.

Slides:



Advertisements
Similar presentations
Managing Tropic Croton with Cadre/Ultra Blazer Tank-Mixes in Peanut E. P. Prostko and J. A. Kichler Dept. of Crop & Soil Sciences University of Georgia.
Advertisements

2009 Weed Management in Cotton. Getting Serious About Herbicide-Resistant Weeds.
1
Copyright © 2003 Pearson Education, Inc. Slide 1 Computer Systems Organization & Architecture Chapters 8-12 John D. Carpinelli.
1 Copyright © 2013 Elsevier Inc. All rights reserved. Appendix 01.
Properties Use, share, or modify this drill on mathematic properties. There is too much material for a single class, so you’ll have to select for your.
Performance of Hedges & Long Futures Positions in CBOT Corn Goodland, Kansas March 2, 2009 Daniel OBrien, Extension Ag Economist K-State Research and Extension.
Properties of Real Numbers CommutativeAssociativeDistributive Identity + × Inverse + ×
2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt ShapesPatterns Counting Number.
FACTORING ax2 + bx + c Think “unfoil” Work down, Show all steps.
Year 6 mental test 10 second questions
Break Time Remaining 10:00.
PP Test Review Sections 6-1 to 6-6
VOORBLAD.
15. Oktober Oktober Oktober 2012.
Copyright © 2012, Elsevier Inc. All rights Reserved. 1 Chapter 7 Modeling Structure with Blocks.
Factor P 16 8(8-5ab) 4(d² + 4) 3rs(2r – s) 15cd(1 + 2cd) 8(4a² + 3b²)
© 2012 National Heart Foundation of Australia. Slide 2.
Before Between After.
25 seconds left…...
: 3 00.
5 minutes.
©Brooks/Cole, 2001 Chapter 12 Derived Types-- Enumerated, Structure and Union.
Peanut Response to Warrant (Acetochlor) E.P. Prostko*, T.L. Grey, and D.L. Jordan.
Clock will move after 1 minute
PSSA Preparation.
Select a time to count down from the clock above
Murach’s OS/390 and z/OS JCLChapter 16, Slide 1 © 2002, Mike Murach & Associates, Inc.
Trends In Peanut Weed Control Dr. Eric P. Prostko Extension Weed Specialist University of Georgia Tifton December 2002.
GET THE MOST FROM YOUR POSTS (Improving POST Herbicide Performance) Dr. Eric P. Prostko Extension Weed Specialist University of Georgia Tifton.
Peanut Weed Management Update Eric P. Prostko Extension Weed Specialist Department of Crop & Soil Sciences The University of Georgia Tifton Extension Agent.
Peanut Weed Control Update (County Extension Agents) Eric P. Prostko Professor and Extension Weed Specialist Department of Crop & Soil Sciences.
Dr. Eric P. Prostko Extension Weed Specialist Dept. Crop & Soil Sciences University of Georgia December Weed Control Update (Peanut, Field Corn,
Conducting Harvest-Aid Research in Corn E.P. Prostko and A.S. Culpepper Dept. Crop & Soil Science University of Georgia WSSA 2004.
2001 Cotton Production Workshop. Waiting until spring to control weeds glyphosate or paraquat PLUS Aim, Caparol, Clarity, Direx, Harmony Extra, Goal,
Peanut Tolerance to KIH-485 in Georgia E. P. Prostko and T.L Grey Department of Crop & Soil Sciences The University of Georgia APRES-2008.
Peanut Weed Management Where are we headed? Eric P. Prostko Extension Weed Specialist University of Georgia Tifton December 2002.
Influence of Cadre on Georgia Green Yield and Seed Germination Eric P. Prostko and Tim L. Grey Department of Crop & Soil Sciences University of Georgia.
How do we manage weeds in $355/ton peanuts??? Eric P. Prostko Extension Weed Specialist University of Georgia Tifton.
Managing Tropical Spiderwort (Commelina benghalensis) In Roundup Ready Cotton A.S. Culpepper, J.T. Flanders, and A.C. York University of Georgia and N.
GRAIN SORGHUM WEED CONTROL UPDATE – 2015 Eric P. Prostko, Ph.D. Extension Weed Specialist Berrien Co, October 2014.
Peanut Weed Management Issues Eric P. Prostko Extension Weed Specialist Department of Crop & Soil Sciences The University of Georgia Tifton GA Peanut.
Oat Response to Imazapic Residues E. P. Prostko, T.L. Grey, and R. N. Morgan Department of Crop & Soil Sciences University of Georgia Tifton WSSA
Cost-Effective Weed Management in Peanuts
Tropical Spiderwort Management in Peanut, Corn, and Soybean
2007 Peanut Weed Management Update for County Agents Eric P. Prostko Extension Weed Specialist Department of Crop & Soil Sciences The University of Georgia.
Peanut Weed Control for New Agents Eric P. Prostko, Ph.D. Professor and Extension Weed Specialist Department of Crop & Soil Sciences.
Why Are Some Herbicides Not Recommended By UGA? Eric P. Prostko and A. Stanley Culpepper Professors/Extension Weed Specialists Dept. Crop & Soil Sciences.
Peanut Weed Control Update 2010 (County Extension Agents) Eric P. Prostko Extension Weed Specialist Department of Crop & Soil Sciences The University of.
Cadre/Fungicide Tank-Mixes in Peanut E. P. Prostko, R. C. Kemerait, and T. L. Grey University of Georgia Tifton.
Peanut Weed Control Update Eric P. Prostko, Ph.D. Professor and Extension Weed Specialist Department of Crop & Soil Sciences.
Control of Tropical Spiderwort in Peanut with Selected Herbicides J. Tim Flanders Grady County Extension Coordinator Eric P. Prostko Dept. of Crop & Soil.
Field Corn Weed Management Update
New Peanut Cultivar Response to Paraquat Applications
Developing An Herbicide-Resistant Weed Management Plan
2008 Soybean Weed Control Update
Perplexing Pigweed Problems in 2004
Managing ALS-Resistant Palmer Amaranth in Peanuts
GRAIN SORGHUM WEED CONTROL UPDATE – 2017
Peanut Weed Control Update
Peanut Weed Control: Are We Out of Silver Bullets?
GRAIN SORGHUM WEED CONTROL UPDATE – 2018
A Look Back at the 2003 Weed Control Year in Peanut
Weed Control in Strip-Tillage Peanuts
Strongarm Applied Postemergence in Georgia Peanut
Eric P. Prostko Extension Weed Specialist
Continued Investigations on the Control of Tropical Spiderwort
Presentation transcript:

Peanut Weed Control Update 2004 Eric P. Prostko Extension Weed Specialist

Things to Talk About Valor Arrow Prowl H 2 0 newer metolachlor formulations postemergence Strongarm reduced rates glyphosate problems

Peanuts Valor Formulations 2001: 51 WDG : 51 WP 2004: Valor SX 51WDG * smaller particles * dispersing agents * easier to get into suspension * 10% price reduction in 04

Valor Formulation Test May 23 (11 DAP) Untreated Valor SX 3 ozs/A applied 1 DAP

Valor Formulation Test June 11 (30 DAP) Untreated Valor SX 3 ozs/A applied 1 DAP

Valor Formulation Test July 29 (78 DAP) Untreated Valor SX 3 ozs/A applied 1 DAP

Peanut yield response to Valor SX (3 ozs/A) applied 1 DAP (2003). PE Attapulgus P = 0.80 CV = 12

Possible Interactions With Valor and Soil Insecticides No problems if applied at the right time. If applied late, maybe some problems with Thimet variable

Peanut Injury in Response to Valor /Insecticide Interactions when applied 5 DAP - Tifton, 2003 DP-1 Planted May 20, Ratings June 24 b c a b

Peanut Injury in Response to Valor /Insecticide Interactions when applied 5 DAP - Plains, 2003 GA Green Planted May 8, Ratings June 11 b bc a

Peanuts Arrow 2EC clethodim POST grass control in broadleaf crops generic Select Makhteshim-Agan ozs/A price/service

Texas Panicum Control with POST Grass Herbicides (44 DAT) PE Ponder Farm Applied to 2-4 tall grass

Peanuts Prowl H CS lbs/gal 2.0 pts/A water-based micro-encapsulated less staining better for strip-tillage? increased price

Prowl H 2 0 pendimethalin EC Prowl H 2 O

Peanut Yield Response to PRE Applications of DNA Herbicides PE Ponder Farm P = pts/A3 pts/A1.8 pts/A2.4 pts/A1.6 pts/A2.1 pts/A

Peanuts New Metolachlor Formulations Cinch – Dupont –same as Dual II Magnum – cannot use POST Stalwart C – Sipcam Agro USA Inc. – old Dual EC formulation (7.8 lbs/gal) – not labeled for peanut Me-Too-Lachlor –Drexel –old Dual EC formulation (8 lbs/gal) – rates are too low

Peanuts Strongarm Postemergence labeled in March 2000 PPI, PRE, AC broadleaf weeds 0.45 ozs/A $15-18/A 6% of GA acres in month cotton rotation restriction ALS inhibitor

Untreated Strongarm applied 17 DAP Strongarm applied 31 DAP PE DAP Tropical spiderwort control with POST applied Strongarm, 2003

Bristly Starbur Control with POST Applied Strongarm, 2003 PE DAT Untreated 0.45 ozs/A ozs/A

Untreated Strongarm 0.45 ozs/A % v/v (Applied 5 WAP) 11 WAP Annual MG Control with POST Applied Strongarm, 2003

PE DAT Wild poinsettia control with POST herbicides, 2003 Untreated 1.44 ozs/A 0.45 ozs/A

Wild Radish Control with POST Applied Strongarm (1, 3-4 leaf) Untreated Strongarm 0.45 ozs/A Strongarm ozs/A 40 DAT

Peanuts Strongarm Postemergence Summary good to excellent POST control of several species reduced rates on sensitive species such as bristly starbur, annual morningglory, wild radish timing and rate are critical on some species such as beggarweed no POST control of sicklepod not labeled at this time but working on this issue rotation restrictions?????

Bristly Starbur in Peanut 6th most troublesome weed in GA a.k.a. goat-head, Texas sandspur weed-free - 6 weeks interference - 2 weeks 1 plant per meter of row = 14% yield loss Strongarm, Basagran SWSS Weed ID Guide

Bristly starbur control with POST applications of Strongarm, tall bristly starbur Included 0.25% v/v

Reduced Rates of Strongarm and Valor - I PE-01A DAP Untreated Strongarm 0.45 ozs/A Valor 3 ozs/A Strongarm ozs/A + Valor 0.75 ozs/A

Reduced Rates of Strongarm and Valor - II PE-01B DAP Untreated Strongarm 0.45 ozs/A Valor 3 ozs/A Strongarm ozs/A + Valor 0.75 ozs/A

Economic Returns from Reduced Rates of Strongarm (S), Valor (V), and Cadre - I PE-01A-03 Tifton

Economic Returns from Reduced Rates of Strongarm (S), Valor (V), and Cadre - II PE-01B-03 Attapulgus

Summary Reduced Rates less injurious than Valor at full rate similar weed control except for tropical spiderwort and annual mg when used in total program (pre + post), equivalent yields and net returns when compared to full rate programs same program in one field may not be the best in another field digging efficiency/weed seed bank concerns in field with a few escapes?

Glyphosate Mishaps in Peanut!

Roundup WeatherMax vs. Crop Oil

Yield Losses Caused By Roundup Weather Max Applied to Virginia 30 DAP. Source: Adapted from B. Robinson, NCSU (3 years of data)