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
Farmer Forum Recap: Cover Crop Termination
Editor’s Note: This Farmer Forum was recorded in March 2023. In this GROW Farmer Forum, a panel of farmers from Wisconsin,...
Cover Crops
featured
Grow News
Squash Pigweeds With These Cover Crop Management Strategies
Palmer amaranth, waterhemp, smooth and redroot pigweed – these weeds haunt farmers nationwide, causing crop yield losses as...
Grow News
Herbicide Resistant Weeds
Cover Crops
A Look at Planter Adjustments for Planting into Cover Crops
Editor’s Note: This article was first published on March 26, 2024. When adjusting your planter to run through...
Grow News
Integrated Weed Management Innovations
Cover Crops
How to Manage Cereal Rye in the Upper Midwest for Weed Suppression and Max Yields
Weeds don’t stand a chance…if you time it right. New research is finally providing much-needed data to upper Midwest farmers...
Grow News
Cover Crops
Herbicide Resistance
Herbicide Management
All-of-the-Above Management: Weed Control in Organic Grain Production in the Pacific Northwest
Demand for organic small grains is increasing, and the semiarid U.S. Pacific Northwest is well-suited to small grain production....
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Cover Crops
DIGITAL AGRICULTURE
Precision Weed Management
Herbicide Management
Seed Impact Mill Pulverizes Problematic Waterhemp in New Study
Recently-published research has reinforced that “milling around” with seed impact mills can help keep escaped waterhemp from...
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Herbicide Management
Weed Management Planner: Order Your Free Prints Now!
GROW’s Weed Management Planner is many things – color-coded, comprehensive, and packed with information! But we admit,...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Cover Crops
Fact Sheets
Herbicide Management
Farm Tour in Wisconsin Seeks to Highlights ESA Impacts to Ag
What do rattlesnakes, cranberries and vegetables have in common? They were all part of a recent farm tour in Wisconsin, aimed at...
Grow News
Industry News
News From Other Sources
Herbicide Management
Farming Peanuts with Cover Crops in Virginia
“Cover crops” and “peanuts” don’t get used in the same sentence too often. With limited herbicide options available and...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
New Technology Aims to Map Cereal Rye Cover Crop Biomass
Cover crops are becoming an important tool for weed suppression, and their biomass is among the most accurate predictors of how...
Integrated Weed Management Innovations
Cover Crops
DIGITAL AGRICULTURE
Precision Weed Management
Penn State Guide Details Interseeding Cover Crops in Corn Production
Want to introduce cover crops into your farming operation, but are too tight on time in the fall? Interseeding cover crops into...
Herbicide Resistant Weeds
Cover Crops
Fact Sheets
Herbicide Management
Robotics in Agriculture Gets an Assist from USDA-ARS
Agriculture is poised to benefit greatly from the rising revolution of robotics and artificial intelligence – if we can...
Industry News
DIGITAL AGRICULTURE
Precision Weed Management
Herbicide Management
Farmer Forum Recap: Cover Crop Termination
Editor’s Note: This Farmer Forum was recorded in March 2023. In this GROW Farmer Forum, a panel of farmers from Wisconsin,...
Cover Crops
featured
Grow News
Squash Pigweeds With These Cover Crop Management Strategies
Palmer amaranth, waterhemp, smooth and redroot pigweed – these weeds haunt farmers nationwide, causing crop yield losses as...
Grow News
Herbicide Resistant Weeds
Cover Crops
A Look at Planter Adjustments for Planting into Cover Crops
Editor’s Note: This article was first published on March 26, 2024. When adjusting your planter to run through...
Grow News
Integrated Weed Management Innovations
Cover Crops
How to Manage Cereal Rye in the Upper Midwest for Weed Suppression and Max Yields
Weeds don’t stand a chance…if you time it right. New research is finally providing much-needed data to upper Midwest farmers...
Grow News
Cover Crops
Herbicide Resistance
Herbicide Management
All-of-the-Above Management: Weed Control in Organic Grain Production in the Pacific Northwest
Demand for organic small grains is increasing, and the semiarid U.S. Pacific Northwest is well-suited to small grain production....
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Cover Crops
DIGITAL AGRICULTURE
Precision Weed Management
Herbicide Management
Weed Management Planner: Order Your Free Prints Now!
GROW’s Weed Management Planner is many things – color-coded, comprehensive, and packed with information! But we admit,...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Cover Crops
Fact Sheets
Herbicide Management
Farming Peanuts with Cover Crops in Virginia
“Cover crops” and “peanuts” don’t get used in the same sentence too often. With limited herbicide options available and...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
New Technology Aims to Map Cereal Rye Cover Crop Biomass
Cover crops are becoming an important tool for weed suppression, and their biomass is among the most accurate predictors of how...
Integrated Weed Management Innovations
Cover Crops
DIGITAL AGRICULTURE
Precision Weed Management
Penn State Guide Details Interseeding Cover Crops in Corn Production
Want to introduce cover crops into your farming operation, but are too tight on time in the fall? Interseeding cover crops into...
Herbicide Resistant Weeds
Cover Crops
Fact Sheets
Herbicide Management
Crush Kochia by Combining Cover Crops with Residual Herbicides
Invasive kochia has become a common enemy on farms in the western half of the U.S. Its herbicide resistance, coupled with its...
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Combining Cover Crops and Herbicide Applications to Manage Weeds in Cotton Production
When it comes to cotton production, there are few weeds as prevalent or as destructive as herbicide-resistant Palmer amaranth....
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Herbicide Management
Considering Using Cover Crops in Cotton? These Factsheets Can Help!
Cotton farmers looking to integrate cover crops into their farming practices have a new resource to assist them! That’s thanks...
Fact Sheets
Grow News
Herbicide Resistant Weeds
Cover Crops
Farmer Forum Recap: Cover Crop Termination
Editor’s Note: This Farmer Forum was recorded in March 2023. In this GROW Farmer Forum, a panel of farmers from Wisconsin,...
Cover Crops
featured
Grow News
Squash Pigweeds With These Cover Crop Management Strategies
Palmer amaranth, waterhemp, smooth and redroot pigweed – these weeds haunt farmers nationwide, causing crop yield losses as...
Grow News
Herbicide Resistant Weeds
Cover Crops
A Look at Planter Adjustments for Planting into Cover Crops
Editor’s Note: This article was first published on March 26, 2024. When adjusting your planter to run through...
Grow News
Integrated Weed Management Innovations
Cover Crops
How to Manage Cereal Rye in the Upper Midwest for Weed Suppression and Max Yields
Weeds don’t stand a chance…if you time it right. New research is finally providing much-needed data to upper Midwest farmers...
Grow News
Cover Crops
Herbicide Resistance
Herbicide Management
Seed Impact Mill Pulverizes Problematic Waterhemp in New Study
Recently-published research has reinforced that “milling around” with seed impact mills can help keep escaped waterhemp from...
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Herbicide Management
Weed Management Planner: Order Your Free Prints Now!
GROW’s Weed Management Planner is many things – color-coded, comprehensive, and packed with information! But we admit,...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Cover Crops
Fact Sheets
Herbicide Management
Farm Tour in Wisconsin Seeks to Highlights ESA Impacts to Ag
What do rattlesnakes, cranberries and vegetables have in common? They were all part of a recent farm tour in Wisconsin, aimed at...
Grow News
Industry News
News From Other Sources
Herbicide Management
Farming Peanuts with Cover Crops in Virginia
“Cover crops” and “peanuts” don’t get used in the same sentence too often. With limited herbicide options available and...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Crush Kochia by Combining Cover Crops with Residual Herbicides
Invasive kochia has become a common enemy on farms in the western half of the U.S. Its herbicide resistance, coupled with its...
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Combining Cover Crops and Herbicide Applications to Manage Weeds in Cotton Production
When it comes to cotton production, there are few weeds as prevalent or as destructive as herbicide-resistant Palmer amaranth....
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Herbicide Management
Considering Using Cover Crops in Cotton? These Factsheets Can Help!
Cotton farmers looking to integrate cover crops into their farming practices have a new resource to assist them! That’s thanks...
Fact Sheets
Grow News
Herbicide Resistant Weeds
Cover Crops
The Best Cover Crop and Herbicide Applications for Soybean Yields
You’ve heard the message for years: “Use cover crops and robust herbicide mixes to curb herbicide resistance.” But choosing...
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Grow News
Herbicide Management
Squash Pigweeds With These Cover Crop Management Strategies
Palmer amaranth, waterhemp, smooth and redroot pigweed – these weeds haunt farmers nationwide, causing crop yield losses as...
Grow News
Herbicide Resistant Weeds
Cover Crops
How to Manage Cereal Rye in the Upper Midwest for Weed Suppression and Max Yields
Weeds don’t stand a chance…if you time it right. New research is finally providing much-needed data to upper Midwest farmers...
Grow News
Cover Crops
Herbicide Resistance
Herbicide Management
All-of-the-Above Management: Weed Control in Organic Grain Production in the Pacific Northwest
Demand for organic small grains is increasing, and the semiarid U.S. Pacific Northwest is well-suited to small grain production....
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Cover Crops
DIGITAL AGRICULTURE
Precision Weed Management
Herbicide Management
Seed Impact Mill Pulverizes Problematic Waterhemp in New Study
Recently-published research has reinforced that “milling around” with seed impact mills can help keep escaped waterhemp from...
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Herbicide Management
Farming Peanuts with Cover Crops in Virginia
“Cover crops” and “peanuts” don’t get used in the same sentence too often. With limited herbicide options available and...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Penn State Guide Details Interseeding Cover Crops in Corn Production
Want to introduce cover crops into your farming operation, but are too tight on time in the fall? Interseeding cover crops into...
Herbicide Resistant Weeds
Cover Crops
Fact Sheets
Herbicide Management
Crush Kochia by Combining Cover Crops with Residual Herbicides
Invasive kochia has become a common enemy on farms in the western half of the U.S. Its herbicide resistance, coupled with its...
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Combining Cover Crops and Herbicide Applications to Manage Weeds in Cotton Production
When it comes to cotton production, there are few weeds as prevalent or as destructive as herbicide-resistant Palmer amaranth....
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Herbicide Management
Considering Using Cover Crops in Cotton? These Factsheets Can Help!
Cotton farmers looking to integrate cover crops into their farming practices have a new resource to assist them! That’s thanks...
Fact Sheets
Grow News
Herbicide Resistant Weeds
Cover Crops
The Best Cover Crop and Herbicide Applications for Soybean Yields
You’ve heard the message for years: “Use cover crops and robust herbicide mixes to curb herbicide resistance.” But choosing...
Herbicide Resistant Weeds
Cover Crops
Herbicide Resistance
Grow News
Herbicide Management
Spraying Herbicides with Drones: An Overview from Virginia Tech
If you want to see the future of many herbicide applications, look to the skies! “Aerial drones are revolutionizing the...
Herbicide Resistant Weeds
Herbicide Management
Precision Weed Management
DIGITAL AGRICULTURE
Grow News
Take Action’s 2025 Herbicide Classification Chart Now Available!
Knowing which herbicide sites of action are in your sprayer tanks each year is essential to managing and preventing herbicide...
Industry News
Take Action
Herbicide Management
Herbicide Resistant Weeds
Seed Impact Mill Pulverizes Problematic Waterhemp in New Study
Recently-published research has reinforced that “milling around” with seed impact mills can help keep escaped waterhemp from...
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Herbicide Management
Weed Management Planner: Order Your Free Prints Now!
GROW’s Weed Management Planner is many things – color-coded, comprehensive, and packed with information! But we admit,...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Cover Crops
Fact Sheets
Herbicide Management
Extension and Farmers Greet Weed Control Option with ‘G’day’
This article is reprinted with permission from University of Minnesota Extension. In growing crops, much hinges on what happens...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
GROW Releases New Herbicide Resistance Resource for the Industry
As herbicide resistance spreads, so must education on what it is and how to manage it. That’s the goal behind GROW’s newest...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Prevention
Weed Electrocution
Precision Weed Management
Herbicide Management
Narrow Windrow Burning for Weed Seed Control is Risky Business
Sometimes when a plan looks good on paper, it doesn’t necessarily mean its execution is the best idea. Weed scientists are...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Harvest Weed Seed Management
Learn When Weeds Shed Their Seeds (And Why It Matters!)
A weed without seeds at harvest time is a lost cause for harvest weed seed control. That’s why GROW researchers from 14...
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Fact Sheets
A Weed Seed Killing Machine: Testing the integrated Harrington Seed Destructor
With a rise in herbicide-resistant weeds such as Palmer amaranth and common ragweed escaping in-season control methods, weed...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Learn from the Best: GROW Farmer Case Studies
Every good ag researcher knows the power of an innovative farmer. Take, for example, the no-till movement. As the Dust Bowl raged...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Cover Crops
featured
Weed Electrocution
Can Seed Impact Mills Kill Weed Seeds in Cotton?
Seed impact mills have shown promise as a weed control option in crops like wheat and soybeans. But what about cotton? A joint...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Weed Science Field Days: What’s In It For Me?
It happens like clockwork almost every year, starting in June. Wagons bounce over field ruts, filled with people clutching...
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Weed Electrocution
Precision Weed Management
Can Weeds Adapt to Beat Harvest Weed Seed Control?
Weeds think they’re pretty smart. Since modern agriculture began, weeds have been evolving and lying in wait to grow again –...
Grow News
Industry News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
GROW Reports on New Harvest Weed Seed Control Research in Australia
I recently returned from a trip to Western Australia to meet with weed scientist Dr. Michael Walsh, along with fellow GROW team...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Harvest Weed Seed Management
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:
Weed Management Planner
In the Fields
What Are Your Problem Weeds?
Jimsonweed
Velvetleaf
Foxtail (Giant)
Broadleaf Signalgrass
Redroot & Smooth Pigweed
Texas Millet (Panicum)
Canada Thistle
Pokeweed (Common)
Cheat
Rush Skeletonweed
Russian Thistle
Prickly Lettuce
