Sonic^®

Herbicide

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Battle weeds

Sonic® herbicide is proven to deliver long-lasting, broad-spectrum control to prevent weeds from invading soybean fields.

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Jump To: Benefits Proven Efficacy Q&A Testimonials Featured Weeds Controlled weeds State registrations Technical specifications From the Field Other products Resources TruChoice Savings

Benefits

Maximized yield potential

Sonic^® herbicide provides preemergence control of tough broadleaf weeds to maximize soybean yield potential.

Multiple modes of action

Containing two modes of action, Sonic effectively manages weed resistance to protect from the toughest yield-robbing weeds.

Extended residual control

Sonic delivers long-lasting residual control when applied in fall, spring or up to three days post-plant before the soybean emerges. It's proven to perform in a variety of soil types.

Convenient

Sonic is a convenient tank-mix partner that is easy to use and handle. It exhibits outstanding crop safety, giving farmers and custom applicators one less thing to worry about.

Proven Efficacy

RESIDUAL CONTROL WITH SONIC^®
Evaluations made four weeks after application

Questions about Sonic^® herbicide?

Read answers to some of growers’ most commonly asked questions about Sonic^® on our Q&A page. Don’t see what you’re looking for? Submit questions of your own.

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Testimonials

George Richter, Grower — Indiana

Soybean grower George Richter of Edwardsport, Indiana, knows the importance of keeping fields clean from planting through harvest. To control his most troublesome weeds, including marestail, waterhemp and giant ragweed, Richter uses Sonic^® herbicide. With the residual control of Sonic, weeds are managed well into the season.

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Mike McFadden, Grower — Ohio

Mike McFadden, Grower — Ohio

As a fifth-generation farmer in Lees Creek, Ohio, Mike McFadden is familiar with common weeds. To achieve optimized yield, McFadden says it is important that fields are clean when he starts planting, and using Sonic^® herbicide ensures that they will be weed-free when he is ready to plant.

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Scott Johnson, Grower — Minnesota

Scott Johnson, Grower — Minnesota

Grower Scott Johnson of Starbuck, Minnesota, switched to Sonic^® herbicide to manage glyphosate resistance and control troublesome broadleaf weeds in his field. Sonic extended the spray window later in the season by keeping weeds small and easier to control.

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Featured Weeds

Life cycle: Annual

Description: An erect summer annual that may reach 6½ feet in height. Seedlings have leaves that are narrow and green to reddish in color. Its first true leaves are alternate, oval-shaped and slightly notched at the tip of the leaf. Mature leaves are alternate, without hairs, and lance-shaped or egg-shaped in outline. Leaves are 2 to 8 inches long and a half inch to 2½ inches wide. Stems are without hairs. Leaf petioles often are as long as — or longer than — the leaf blade. Seed heads measure 1 to 2 feet in length.

Control: Preemergence, 4 to 6 oz./A Sonic^®herbicide + 1 pt./A 2,4-D + 24 to 40 oz./A Durango^®DMA^® herbicide

Life cycle: Annual

Description: Marestail is an erect winter or summer annual reaching 6½ feet in height. Seedlings develop a basal rosette from which sprouts a 2- to 6-foot tall stalk covered with narrow leaves. The stems usually are hairy and branch near the top. At the top of the stalks are small white flowers that ripen to white, windblown parachute seeds.

Control: Preemergence, 4 to 6 oz./A Sonic® herbicide + 1 pt./A 2,4-D + 24 to 40 oz./A Durango® DMA® herbicide

Life cycle: Annual

Description: Giant ragweed is a summer annual that can grow up to 16 feet tall. Its leaves are large and distinctively three-lobed but can sometimes be five-lobed. Its rough, hairy leaves are about 6 inches long and 4 to 6 inches wide. Opposite leaves occur in pairs at nodes. It prefers moist soil.

Control: Preemergence, 4 to 6 oz./A Sonic® herbicide + 1 pt./A 2,4-D + 24 to 40 oz./A Durango® DMA® herbicide

Controlled Weeds

Amaranth
Barnyard Grass
Crabgrass
Horseweed
Lamb's-quarters
Mexicanweed
Morningglory
Mustard
Nightshade
Panicum
Pigweed
Pusley
Ragweed
Smartweed
Spurge
Thistle
Velvetleaf
Waterhemp

Registered
Unregistered

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Technical Specifications

Active Ingredient

sulfentrazone; cloransulam-methyl
Herbicide Group

Sonic^® herbicide contains sulfentrazone, a Group 14 herbicide (PPO inhibitor); and cloransulam-methyl, a Group 2 herbicide (ALS inhibitor).

Application Rate

	Fall	Spring	Planting + 3 Days
	Apply before tillage or no-till	Apply early to manage workload and reduce weather variability	Apply up to 3 days postplanting to give beans a clean start
RATE	4-6 oz.	4-6 oz.	4-6 oz.

High rates recommended when herbicide-resistant weeds are present or when longer residual control is desired

Application Timing

Sonic can be applied preemergence up to three days postplant.

Keys to Identifying Palmer Amaranth

Palmer amaranth grows much faster than pigweed or waterhemp species. Look for its rapid growth as you and your customers scout fields in spring. Watch this video to learn more about identifying Palmer amaranth from Corteva field scientist Dave Ruen.

Keys to Identifying Palmer Amaranth

Palmer amaranth growing more resistant

Palmer amaranth is growing increasingly resistant to herbicides in corn. Corteva Agriscience Market Development Specialist Jason Gibson provides advice to overcoming that resistance and controlling the weed.

Palmer amaranth growing more resistant

What sets Sonic herbicide apart from other soybean herbicides

The three main reasons people recommend and purchase Sonic is because of the extended residual control, the broad-spectrum broadleaf weed control and then also the crop safety,” says Kent Bennis, market development specialist, Corteva. Watch this vid

What sets Sonic herbicide apart from other soybean herbicides

Keys to Identifying Palmer Amaranth

Palmer amaranth growing more resistant

What sets Sonic herbicide apart from other soybean herbicides

Other products

Looking for similar or complementary products? Check out these related products.

Elevore™ herbicide

Resicore® REV herbicide

Trivence® herbicide

SureStart® II herbicide

Resources

Sonic^® Fact Sheet

Prepay and Save

Save Up to 10% on Crop Protection

With the TruChoice® Offer, you can save at the time of purchase on 100+ leading crop protection products like this one. Fund a prepay account with Corteva Agriscience to start saving.

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With the TruChoice® Offer, you can save at the time of purchase on 100+ leading crop protection products like this one. Fund a prepay account with Corteva Agriscience to start saving.

Tell me more

Elevore, Resicore, Sonic and SureStart II are not registered for sale or use in all states. Resicore and SureStart are not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions.

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Battle weeds