Getting Rid Of Weeds
Through Integrated Weed Management
We are a scientist-led network coordinating research to help farmers across the U.S. fight herbicide-resistance with a greater diversity of weed control strategies to complement chemical use.
GROW aims to provide information on tools such as cover crops, increased crop competition, harvest weed seed control, and more.
Recent GROW News & Research Updates

Weed Control Remains a Primary Goal for Cover Crop Users

HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds

HWSC in the Pacific Northwest: Farmers Lead the Way in this Series

Three Things to Know About Spot Spray Technology Today

Chaff Lining Limits Weed Seed Spread at Harvest, Research Finds

The Hunt to Learn How Much Herbicide is Intercepted by a Cover Crop

Should You Adjust Cover Crop Seeding Rates as Planting Dates Change?

Planting Fall Covers? Know Your Herbicide Carryover Risks.

Is it Time to Consider Harvest Weed Seed Control?

The Lowdown on Flowering Weeds & Viable Seeds

Farmer Forum Recap: Cover Crop Seeding

The Cover Crop That Never Dies: Scientists Explore Living Mulch

Weed Control Remains a Primary Goal for Cover Crop Users

The Hunt to Learn How Much Herbicide is Intercepted by a Cover Crop

Should You Adjust Cover Crop Seeding Rates as Planting Dates Change?

Planting Fall Covers? Know Your Herbicide Carryover Risks.

Farmer Forum Recap: Cover Crop Seeding

The Cover Crop That Never Dies: Scientists Explore Living Mulch

Join a GROW Farmer Forum on Cover Crop Seeding

Farmer Case Study: Using Wheat as a Cover Crop & Managing Nitrogen Tie-Up

How Does Planting Green Affect Herbicide Use, Soil Moisture & More?

How to Use “Many Little Hammers” to Manage Waterhemp

Narrow Rows & Cover Crops Boost Weed Control in Soybeans

Research Deep Dive: How to Suppress Palmer Amaranth with Cover Crops

HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds

HWSC in the Pacific Northwest: Farmers Lead the Way in this Series

The Hunt to Learn How Much Herbicide is Intercepted by a Cover Crop

Planting Fall Covers? Know Your Herbicide Carryover Risks.

Is it Time to Consider Harvest Weed Seed Control?

The Lowdown on Flowering Weeds & Viable Seeds

Farmer Forum Recap: Cover Crop Seeding

Virginia Tech Scientists Test See & Spray Tech from Blue River & John Deere

Join a GROW Farmer Forum on Cover Crop Seeding

Farmer Case Study: Using Wheat as a Cover Crop & Managing Nitrogen Tie-Up

Time to Scout for Weed Escapes

Research Deep Dive: How to Suppress Palmer Amaranth with Cover Crops

Weed Control Remains a Primary Goal for Cover Crop Users

HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds

HWSC in the Pacific Northwest: Farmers Lead the Way in this Series

Three Things to Know About Spot Spray Technology Today

The Cover Crop That Never Dies: Scientists Explore Living Mulch

Virginia Tech Scientists Test See & Spray Tech from Blue River & John Deere

Catch & Kill: Targeting the Seedbank with Harvest Weed Seed Control

Farmer Case Study: Using Wheat as a Cover Crop & Managing Nitrogen Tie-Up

Time to Scout for Weed Escapes

How to Use “Many Little Hammers” to Manage Waterhemp

Narrow Rows & Cover Crops Boost Weed Control in Soybeans

Research Deep Dive: How to Suppress Palmer Amaranth with Cover Crops

HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds

HWSC in the Pacific Northwest: Farmers Lead the Way in this Series

Chaff Lining Limits Weed Seed Spread at Harvest, Research Finds

Is it Time to Consider Harvest Weed Seed Control?

Catch & Kill: Targeting the Seedbank with Harvest Weed Seed Control

Updates on Harvest Weed Seed Control from WSSA Members Across the Country

How to Manage Weeds in the Face of Regulation and Resistance

Are You a Fan of DIY Weed Control? Try Chaff Lining.

The Australian Weed Control Revolution

Farmer Forum Recap: Combine Set-Up for Threshing Green Material

The Fate of Weed Seeds: Where Do They Go in a Combine?

Farmer Forum Recap: How to Optimize Threshing Settings for Harvest Weed Seed Control

No Seeds. No Weeds.
For over 50 years, herbicides have been a highly effective method to control weeds and protect crop yields. Herbicides have supported the wide-spread use of no-till and limited cultivation for weed control, improving soil health. However, over reliance on a few key herbicides has caused the development of particularly problematic herbicide-resistant weeds.
For some farmers, herbicides alone just aren’t getting the job done anymore.
Integrated Weed Management (IWM) is the answer.
What is Integrated Weed Management?
Integrated weed management (IWM) combines various methods to reduce or eliminate the effect of weeds on crop production over time, using a combination of practices that are most effective for solving specific weed issues. Techniques include: