Herbicide Carryover

Considerations for Weed Control Before Early Cover Crop Seedings

By Dwight Lingenfelter and John Wallace posted on August 26, 2024 | Posted in Seeding Practices

Source: PennState University Extension

Consider herbicide carryover injury potential and rotation interval restrictions when seeding cover crops this fall.

Risk of Herbicide Carryover Increases with Dry Weather, Late Application

By James Hoorman posted on January 5, 2023 | Posted in Seeding Practices, Soil Health

Source: Hoorman Soil Health Services

While many herbicides have long cropping restrictions because they take a long time to break down, there are several herbicides that have a short half-life. Generally, herbicides like Sharpen (saflufenacil), 2-4D and Roundup products (glyphosate) break down fairly quickly in the soil and cause less problems with herbicide carryover.

Herbicide Carryover and Cover Crops Don't Always Mix

August 2, 2022 | Posted in Soil Health, Termination

Source: Michigan Farm Bureau

Proven benefits of cover crops in a corn/soybean rotation have farmers re-evaluating their weed management programs. One critical risk to evaluate is residual herbicide use and potential carryover given the timing of cover crop seeding.

Drought Affects Herbicide Carryover

October 16, 2020 | Posted in Seeding Practices

Source: Ohio's Country Journal

The 2020 summer was hotter and drier than normal for most farms, so herbicide carryover will be a major issue for planting cover crops. Herbicides degrade based on soil temperature, rainfall, time of application, organic matter, soil type, soil pH, and sunlight. Read more in this article from Ohio's Country Journal.

How to Keep Herbicides from Hurting Your Cover Crop Investment

Paying attention to details such as cover crop seed size, herbicide half-life and application dates can help growers mitigate injury carryover.

By Scott Reaver posted on March 9, 2020 | Posted in Termination

While cover crops provide a host of documented benefits, there’s a wrinkle in managing them that growers must learn to handle: herbicide use.

[Podcast] What You Need to Know About Herbicides and Planting Covers

Herbicides can be tricky to work around when cover crops are included in the rotation. So, how can you ensure you're maximizing the effectiveness of cover crops when herbicides are involved in your farming system?

April 16, 2019 | Posted in Seeding Practices

Herbicides can be tricky to work around when cover crops are included in the rotation. So, how can you ensure you're maximizing the effectiveness of cover crops when herbicides are involved in your farming system? (Courtesy of Cover Crop Innovators)

Finding a Weed Control Plan that Won’t Hurt Your Covers

Environment, herbicide chemistries, cover crop species and timing of herbicide application and cover crop seeding all play a role in herbicide carryover to covers.

By Laura Barrera posted on June 10, 2017 | Posted in Soil Health

Environment, herbicide chemistries, cover crop species and timing of herbicide application and cover crop seeding all play a role in herbicide carryover to covers.

How Herbicide Choices Affect Cover Crop Options, Management

November 1, 2016 | Posted in Termination

Source: James Locke, Soils and Crops Consultant, Noble Foundation

The Noble Foundation shares some considerations for making sure your herbicide choices don't clash with your cover crop goals.

Cover Crop Considerations for Marestail Control in Wheat Stubble

July 28, 2016 | Posted in Soil Health

Source: Ohio State University Extension

Ohio State University Extension explains what options growers have in controlling marestail in wheat stubble if they plan on seeding cover crops later this summer.