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
Allow Us to Introduce Ourselves (Again!)
Narrow Rows are a Weed Control Win, New Study Says
Meet the Crop Protection Network (CPN)!
Evaluating a New Weed Killer: Blue Light and Heat
Precision Weed Management: New Industry, New Webpage!
The Silver Bullet That Wasn’t: Glyphosate’s Declining Weed Control Over 25 Years
Cover Crops and Weed Control in the Southeast: A Battle for Resources
Testing for Herbicide Resistance: A Look at Montana State’s Options
New Herbicide-Tolerant Traits Could Boost Sorghum’s Rotational Benefits
Cover Crops for Weed Control: The Keys for Success
The Hunt to Make Cereal Rye More Competitive Above & Below Ground
New Year, New Weedy Wisdom
Allow Us to Introduce Ourselves (Again!)
Cover Crops and Weed Control in the Southeast: A Battle for Resources
Cover Crops for Weed Control: The Keys for Success
The Hunt to Make Cereal Rye More Competitive Above & Below Ground
How to Make Cover Crops Work in Montana
New Resource Alert: The Weed Management Planner
New Penn State Guide Tackles Weed Control in Organic No-Till Soybean Systems
The Latest on Herbicide Resistance & Weed Management in Montana
Interseeding Cover Crops in Corn: A Research Deep Dive
EPA Tours Maryland Crops & Weeds Research
Weed Control Remains a Primary Goal for Cover Crop Users
The Hunt to Learn How Much Herbicide is Intercepted by a Cover Crop
Allow Us to Introduce Ourselves (Again!)
Meet the Crop Protection Network (CPN)!
Precision Weed Management: New Industry, New Webpage!
Cover Crops and Weed Control in the Southeast: A Battle for Resources
Testing for Herbicide Resistance: A Look at Montana State’s Options
The Hunt to Make Cereal Rye More Competitive Above & Below Ground
New Year, New Weedy Wisdom
How to Make Cover Crops Work in Montana
New Resource Alert: The Weed Management Planner
Farmer Forum Recap: Using Seed Impact Mills for Weed Control
Making Chaff Lining Work on Shepherd Grain Farms
Eastern Shore Farmer Tries Chaff Lining to Defeat Weeds
Allow Us to Introduce Ourselves (Again!)
Evaluating a New Weed Killer: Blue Light and Heat
The Silver Bullet That Wasn’t: Glyphosate’s Declining Weed Control Over 25 Years
Cover Crops and Weed Control in the Southeast: A Battle for Resources
Testing for Herbicide Resistance: A Look at Montana State’s Options
New Herbicide-Tolerant Traits Could Boost Sorghum’s Rotational Benefits
Cover Crops for Weed Control: The Keys for Success
The Hunt to Make Cereal Rye More Competitive Above & Below Ground
New Year, New Weedy Wisdom
New Resource Alert: The Weed Management Planner
Farmer Forum Recap: Using Seed Impact Mills for Weed Control
New Penn State Guide Tackles Weed Control in Organic No-Till Soybean Systems
Allow Us to Introduce Ourselves (Again!)
Evaluating a New Weed Killer: Blue Light and Heat
New Resource Alert: The Weed Management Planner
Farmer Forum Recap: Using Seed Impact Mills for Weed Control
Making Chaff Lining Work on Shepherd Grain Farms
Eastern Shore Farmer Tries Chaff Lining to Defeat Weeds
Join a GROW Farmer Forum on Using Seed Impact Mills for Weed Control
Cheatgrass (Downy Brome) Management in the Western U.S.
Scout for Palmer Amaranth and Waterhemp to Prevent Spreading Seeds with the Combine
HWSC in the Pacific Northwest: Greene Ridge Farms Tackles Tough Weeds with Seed Impact Mill
A Weed Seed Killing Machine: Testing the Redekop Seed Control Unit
HWSC in the Pacific Northwest: Simon Crawford’s First Year with a Seed Impact Mill
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: