National Sunflower Association - link home
About NSA Join NSA Contact Us Facebook YouTube
All About Sunflower

Buyers

Health & Nutrition

Sunflower Seed and Kernel

Sunflower Oil

Growers

Banded Sunflower Moth

Sunflower Moth

Video Clips

Blackbirds

Diseases

Insects

Weeds

Biennial Wormwood

Canada Thistle

Foxtail

Kochia

Marshelder

Palmer Amaranth

Puncture Vine

Redroot Pigweed

Wild Buckwheat

Wild Sunflower

Weed Supplement

Approved Chemicals

Planting

Growth Stages

Harvesting/Storage

Production Resource Books

Marketing

Yield Trials/Crop Survey

Crop Insurance

Equipment Buy/Sell

Calendar of Events

Media Center

Photo Gallery

Sunflower Statistics

International Marketing

Research

Meal/Wholeseed Feeding

Sunflower Magazine

Surveys

Espanol

Daily Market News
Sign Up for Newsletter
Online Catalog
Online Directory
Google Search
Printer Friendly Version
You Are Here Growers > Weeds > Redroot Pigweed




Redroot Pigweed (Amaranthus retroflexus)

Redroot Pigweed
This weed shows up as the number one weed problem in South Dakota, number two weed problem in Colorado and the third worst weed problem in Minnesota and Manitoba. This weed has an extended germination period, is noted for its rapid growth and its high rate of seed production. There are a number of options for control.

Control Strategies

Redroot Pigweed
1. Good control of RR Pigweed in previous crop

2. Use burn down up to emergence

3. Spartan has excellent control and can be used in reduced and no tillage systems

4. Beyond¹ and Express² have excellent control in post-emergence

5. Sonalan and Prowl are rated as fair to good

6. Eptam is rated as good

7. Trifluralin and Dual Magnum are rated as fair

8. Between row cultivation or between row hooded sprayer herbicide application




Additional Links

Colorado Weed Management Guide (link)

Glyphosate, Weeds, and Crops (link)

KSU Weed Publications (link)

NDSU Crop Production and Marketing (link)

SDSU Weed Control in Oilseed Crops (link)

Sunflower labeled Herbicides (link)

Contact the chemical companies to obtain a copy of the label.

Footnotes

(1) Beyond herbicide is specific to CLEARFIELD® hybrids only. Clearfield hybrids have been developed with a resistant gene to Beyond herbicide. Applying Beyond herbicide on non-Clearfield hybrids will result in extensive damage.

(2) Express herbicide is specific to ExpressSun® hybrids only. ExpressSun hybrids have been developed with a resistant gene to Express herbicide. Applying Express herbicide on non-ExpressSun hybrids will result in extensive damage.

Glyphosate and Aim are labeled for between row hooded sprayer applications.


Top of the Page

copyright ©2014 National Sunflower Association