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

Farm Tour in Wisconsin Seeks to Highlights ESA Impacts to Ag

Farming Peanuts with Cover Crops in Virginia

New Technology Aims to Map Cereal Rye Cover Crop Biomass

Penn State Guide Details Interseeding Cover Crops in Corn Production

Robotics in Agriculture Gets an Assist from USDA-ARS

Crush Kochia by Combining Cover Crops with Residual Herbicides

Combining Cover Crops and Herbicide Applications to Manage Weeds in Cotton Production

Considering Using Cover Crops in Cotton? These Factsheets Can Help!

The Best Cover Crop and Herbicide Applications for Soybean Yields

Resource Alert: Cover Crop Termination Factsheets Now Available!

Spraying Herbicides with Drones: An Overview from Virginia Tech

Take Action’s 2025 Herbicide Classification Chart Now Available!

Farming Peanuts with Cover Crops in Virginia

New Technology Aims to Map Cereal Rye Cover Crop Biomass

Penn State Guide Details Interseeding Cover Crops in Corn Production

Crush Kochia by Combining Cover Crops with Residual Herbicides

Combining Cover Crops and Herbicide Applications to Manage Weeds in Cotton Production

Considering Using Cover Crops in Cotton? These Factsheets Can Help!

The Best Cover Crop and Herbicide Applications for Soybean Yields

Resource Alert: Cover Crop Termination Factsheets Now Available!

End of Life Planning for Cover Crops: Are You Prepared?

Tips for Getting Herbicides and Cover Crops to Cooperate

GROW Releases New Herbicide Resistance Resource for the Industry

How to Manage Cover Crops in Cotton: A Virginia Farmer’s Experience

Farm Tour in Wisconsin Seeks to Highlights ESA Impacts to Ag

Farming Peanuts with Cover Crops in Virginia

Crush Kochia by Combining Cover Crops with Residual Herbicides

Combining Cover Crops and Herbicide Applications to Manage Weeds in Cotton Production

Considering Using Cover Crops in Cotton? These Factsheets Can Help!

The Best Cover Crop and Herbicide Applications for Soybean Yields

Resource Alert: Cover Crop Termination Factsheets Now Available!

Spraying Herbicides with Drones: An Overview from Virginia Tech

Farmer Forum Recap: Targeted Spray Technologies in the Field

Extension and Farmers Greet Weed Control Option with ‘G’day’

End of Life Planning for Cover Crops: Are You Prepared?

Tank Mixing or Herbicide Rotation: Which Strategy is Best?

Farming Peanuts with Cover Crops in Virginia

Penn State Guide Details Interseeding Cover Crops in Corn Production

Crush Kochia by Combining Cover Crops with Residual Herbicides

Combining Cover Crops and Herbicide Applications to Manage Weeds in Cotton Production

Considering Using Cover Crops in Cotton? These Factsheets Can Help!

The Best Cover Crop and Herbicide Applications for Soybean Yields

Spraying Herbicides with Drones: An Overview from Virginia Tech

Take Action’s 2025 Herbicide Classification Chart Now Available!

Extension and Farmers Greet Weed Control Option with ‘G’day’

The Challenges of Managing Non-Target-Site Herbicide Resistance

End of Life Planning for Cover Crops: Are You Prepared?

Tank Mixing or Herbicide Rotation: Which Strategy is Best?

Extension and Farmers Greet Weed Control Option with ‘G’day’

GROW Releases New Herbicide Resistance Resource for the Industry

Narrow Windrow Burning for Weed Seed Control is Risky Business

Learn When Weeds Shed Their Seeds (And Why It Matters!)

A Weed Seed Killing Machine: Testing the integrated Harrington Seed Destructor

Learn from the Best: GROW Farmer Case Studies

Can Seed Impact Mills Kill Weed Seeds in Cotton?

Weed Science Field Days: What’s In It For Me?

Can Weeds Adapt to Beat Harvest Weed Seed Control?

GROW Reports on New Harvest Weed Seed Control Research in Australia

Allow Us to Introduce Ourselves (Again!)

Evaluating a New Weed Killer: Blue Light and Heat

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 widespread use of no-till and limited cultivation for weed control, improving soil health. However, overreliance on a few key herbicides has prompted a growing epidemic of 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) is a system that layers multiple weed control methods to suppress and manage weeds across a growing season, by targeting weeds and the seedbank in different ways and at different stages of development. The result is a robust weed management program that doesn’t rely on a single mode of action or management tactic. IWM techniques include:
