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

Approved Chemicals

Planting Seed Treatments

Herbicides

Insecticides

Fungicides

Bird Abatement & Other

Stored Grain Insecticides

Desiccant

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 > Approved Chemicals > Desiccant




Drexel Defol (Sodium Chloride)

When to Apply
Backside of sunflower heads are yellow and bracts turning brown; seed moisture content below 35%.

Remarks
For use on confection and oil-type varieties. Thorough coverage of plant is essential. Apply aerially at five to 10 gpa, or at 20 to 30 gpa by ground sprayer.

Gramoxone Extra (Paraquat)

When to Apply
Backside of sunflower heads are yellow and bracts turning brown; seed moisture content below 35%.

Remarks
For use on confection and oil-type varieties. Apply with NIS. Randomly sample 10 average heads for seed moisture. Allow a seven day PHI.

Roundup (Glyphosate)

When to Apply
Apply when the backsides of sunflower heads are yellow and bracts are turning brown and seed moisture content is less than 35%.

Remarks
This is registered as a late season weed control but functions like a desiccant.

Sharpen (Kixor)

When to Apply
When sunflower seed moisture is 36 percent or less.

Remarks
For optimum desiccation an adjuvant must be used such as methylated seed oil or crop oil concentrate. Sharpen can be tank mixed with one or more labeled herbicides such as Glyphosate. Apply at least seven days prior to harvest. This is not a restricted use pesticide.

Valor® SX Herbicide

When to Apply
Apply when the backsides of sunflower heads are yellow and bracts are turning brown and seed moisture content is less than 35%.

Remarks
Valor can be used as a sunflower desiccant (2 - 3 oz/acre + MSO at 1 qt/a), and if used at 3 oz/acre it would provide residual weed control from the fall to early spring.



Top of the Page

copyright ©2014 National Sunflower Association