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
Learn from the Best: GROW Farmer Case Studies
A Deep Dive on the See & Spray Ultimate System from John Deere & Blue River
USDA-NIFA Grant Supports Microwave Tech to Zap Weed Seeds
Can Seed Impact Mills Kill Weed Seeds in Cotton?
Weed Look-Alikes Could Pose Threat to Camera-Based Weed Detection
Weed Management in Double Crop Soybeans
Sterile Pollen Technique Shows Promise for Palmer Amaranth Weed Control
Don’t Miss Last Call for Vining Weed Control in Corn
Weed Science Field Days: What’s In It For Me?
Meet GROW’s New Page: The Basics of Herbicide Resistance
Contributors Needed for Weed Mapping Project
Can Weeds Adapt to Beat Harvest Weed Seed Control?
Learn from the Best: GROW Farmer Case Studies
Study Shines Light on Drill-interseeded Cover Crops in Corn
Cover Crops and Residual Herbicides Team Up Against Palmer Amaranth
New Research on How to Apply Residual Herbicides When Planting Green
The Lowdown on Roller Crimpers
A Look at Planter Adjustments for Planting into Cover Crops
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
Learn from the Best: GROW Farmer Case Studies
Can Seed Impact Mills Kill Weed Seeds in Cotton?
Weed Management in Double Crop Soybeans
Don’t Miss Last Call for Vining Weed Control in Corn
Weed Science Field Days: What’s In It For Me?
Meet GROW’s New Page: The Basics of Herbicide Resistance
Can Weeds Adapt to Beat Harvest Weed Seed Control?
Cover Crops and Residual Herbicides Team Up Against Palmer Amaranth
Farmer Forum Recap: Using Drones for Weed Management
New Research on How to Apply Residual Herbicides When Planting Green
Meet Science for Success!
Join a GROW Farmer Forum on Drones & Weed Management
A Deep Dive on the See & Spray Ultimate System from John Deere & Blue River
USDA-NIFA Grant Supports Microwave Tech to Zap Weed Seeds
Can Seed Impact Mills Kill Weed Seeds in Cotton?
Weed Look-Alikes Could Pose Threat to Camera-Based Weed Detection
Weed Management in Double Crop Soybeans
Sterile Pollen Technique Shows Promise for Palmer Amaranth Weed Control
Don’t Miss Last Call for Vining Weed Control in Corn
Weed Science Field Days: What’s In It For Me?
Meet GROW’s New Page: The Basics of Herbicide Resistance
Contributors Needed for Weed Mapping Project
Can Weeds Adapt to Beat Harvest Weed Seed Control?
Cover Crops and Residual Herbicides Team Up Against Palmer Amaranth
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
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
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: