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
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 Resistance
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Management
Resource Alert: Cover Crop Termination Factsheets Now Available!
Before you can even begin planting cover crops, you need a plan to kill them off. Cover crop termination plans are critical...
Grow News
Integrated Weed Management Innovations
Cover Crops
Fact Sheets
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
DIGITAL AGRICULTURE
Precision Weed Management
Grow News
Herbicide Management
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...
Take Action
Herbicide Management
Herbicide Resistant Weeds
Industry News
Farmer Forum Recap: Targeted Spray Technologies in the Field
In this GROW Farmer Forum, University of Wisconsin weed scientist Dr. Rodrigo Werle and a panel of three farmers from across the...
DIGITAL AGRICULTURE
Precision Weed Management
Industry News
Grow News
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
The Challenges of Managing Non-Target-Site Herbicide Resistance
Farmers have a lot of experience identifying, mixing and rotating herbicide sites of action to avoid herbicide resistance. ...
Herbicide Resistant Weeds
Herbicide Management
Herbicide Resistance
Prevention
End of Life Planning for Cover Crops: Are You Prepared?
Farmers should have a complete plan in place before adding cover crops to their rotation. Knowing how and when to terminate...
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
Cover Crops
Herbicide Management
Tank Mixing or Herbicide Rotation: Which Strategy is Best?
A new body of research suggests that tank mixing different herbicide sites of action is more effective at delaying herbicide...
Herbicide Management
Herbicide Resistance
Prevention
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
Join a GROW Farmer Forum on Targeted Spray Technologies in the Field
This forum is now archived and available HERE and HERE. GROW will be hosting a Farmer Forum on Monday, November 18, 2024, at 11...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
DIGITAL AGRICULTURE
Precision Weed Management
What’s the Difference Between Target-Site & Non-Target-Site Herbicide Resistance?
“Target-site resistance” and “non-target-site resistance” may seem like stuffy, scientific terms best suited to a...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Prevention
Herbicide Resistance
Herbicide Management
Tips for Getting Herbicides and Cover Crops to Cooperate
Farmers can use cover crops for many benefits including weed suppression. But first, they have to make sure another popular weed...
Grow News
Industry News
Cover Crops
Herbicide Management
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 Resistance
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Management
Resource Alert: Cover Crop Termination Factsheets Now Available!
Before you can even begin planting cover crops, you need a plan to kill them off. Cover crop termination plans are critical...
Grow News
Integrated Weed Management Innovations
Cover Crops
Fact Sheets
Herbicide Management
End of Life Planning for Cover Crops: Are You Prepared?
Farmers should have a complete plan in place before adding cover crops to their rotation. Knowing how and when to terminate...
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
Cover Crops
Herbicide Management
Tips for Getting Herbicides and Cover Crops to Cooperate
Farmers can use cover crops for many benefits including weed suppression. But first, they have to make sure another popular weed...
Grow News
Industry News
Cover Crops
Herbicide 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
How to Manage Cover Crops in Cotton: A Virginia Farmer’s Experience
Cover crops have a lot to offer Virginia cotton farmer Clay Lowe – namely, weed suppression, nutrient enhancement and soil...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Drone Seeding Cover Crops into Standing Soybeans
The following is reprinted with permission from Penn State Extension. Cover crops can be challenging to establish after soybeans....
News From Other Sources
Cover Crops
DIGITAL AGRICULTURE
Precision Weed Management
Integrated Weed Management Innovations
Catch Up On GROW’s Latest Cover Crop Research
GROW was recently featured in the Illinois Cover Crop On-Farm Network’s webinar series, “Weeds & Diseases & Pests, Oh...
Grow News
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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
Study Shines Light on Drill-interseeded Cover Crops in Corn
The following is reprinted from Weed Science, a journal of the Weed Science Society of America. Recently published research in...
News From Other Sources
Cover Crops
Industry News
Integrated Weed Management Innovations
Cover Crops and Residual Herbicides Team Up Against Palmer Amaranth
Palmer amaranth is famous for dodging herbicide control options, but it appears that a one-two punch of cover crop residue and...
Grow News
Cover Crops
Herbicide Resistant Weeds
Industry News
New Research on How to Apply Residual Herbicides When Planting Green
Planting soybeans into a green, living cover crop can require some extra management decisions, such as when to apply those...
Grow News
Cover Crops
Herbicide Resistant Weeds
Integrated Weed Management Innovations
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 Resistance
Grow News
Herbicide Resistant Weeds
Cover Crops
Herbicide Management
Resource Alert: Cover Crop Termination Factsheets Now Available!
Before you can even begin planting cover crops, you need a plan to kill them off. Cover crop termination plans are critical...
Grow News
Integrated Weed Management Innovations
Cover Crops
Fact Sheets
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
DIGITAL AGRICULTURE
Precision Weed Management
Grow News
Herbicide Management
Farmer Forum Recap: Targeted Spray Technologies in the Field
In this GROW Farmer Forum, University of Wisconsin weed scientist Dr. Rodrigo Werle and a panel of three farmers from across the...
DIGITAL AGRICULTURE
Precision Weed Management
Industry News
Grow News
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
End of Life Planning for Cover Crops: Are You Prepared?
Farmers should have a complete plan in place before adding cover crops to their rotation. Knowing how and when to terminate...
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
Cover Crops
Herbicide Management
Tank Mixing or Herbicide Rotation: Which Strategy is Best?
A new body of research suggests that tank mixing different herbicide sites of action is more effective at delaying herbicide...
Herbicide Management
Herbicide Resistance
Prevention
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
Join a GROW Farmer Forum on Targeted Spray Technologies in the Field
This forum is now archived and available HERE and HERE. GROW will be hosting a Farmer Forum on Monday, November 18, 2024, at 11...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
DIGITAL AGRICULTURE
Precision Weed Management
Tips for Getting Herbicides and Cover Crops to Cooperate
Farmers can use cover crops for many benefits including weed suppression. But first, they have to make sure another popular weed...
Grow News
Industry News
Cover Crops
Herbicide 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
How to Manage Cover Crops in Cotton: A Virginia Farmer’s Experience
Cover crops have a lot to offer Virginia cotton farmer Clay Lowe – namely, weed suppression, nutrient enhancement and soil...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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
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 Resistance
Grow News
Herbicide Resistant Weeds
Cover Crops
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
DIGITAL AGRICULTURE
Precision Weed Management
Grow News
Herbicide Management
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...
Take Action
Herbicide Management
Herbicide Resistant Weeds
Industry News
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
The Challenges of Managing Non-Target-Site Herbicide Resistance
Farmers have a lot of experience identifying, mixing and rotating herbicide sites of action to avoid herbicide resistance. ...
Herbicide Resistant Weeds
Herbicide Management
Herbicide Resistance
Prevention
End of Life Planning for Cover Crops: Are You Prepared?
Farmers should have a complete plan in place before adding cover crops to their rotation. Knowing how and when to terminate...
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
Cover Crops
Herbicide Management
Tank Mixing or Herbicide Rotation: Which Strategy is Best?
A new body of research suggests that tank mixing different herbicide sites of action is more effective at delaying herbicide...
Herbicide Management
Herbicide Resistance
Prevention
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
Join a GROW Farmer Forum on Targeted Spray Technologies in the Field
This forum is now archived and available HERE and HERE. GROW will be hosting a Farmer Forum on Monday, November 18, 2024, at 11...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
DIGITAL AGRICULTURE
Precision Weed Management
What’s the Difference Between Target-Site & Non-Target-Site Herbicide Resistance?
“Target-site resistance” and “non-target-site resistance” may seem like stuffy, scientific terms best suited to a...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Prevention
Herbicide Resistance
Herbicide 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
Listen In: What is Happening with the Endangered Species Act and Herbicide Labels?
The acronym “ESA” is fast-becoming a dreaded word in agriculture, as farmers, scientists and pesticide registrants anxiously...
Industry News
Herbicide Resistant Weeds
Herbicide Management
Eyes in the Sky and Eyes on the Ground: The Range of Camera-based Weed Detection
There’s eyes everywhere these days – even in our crop fields. Whether it’s tractor-mounted sensors skimming just inches...
Herbicide Resistant Weeds
News From Other Sources
DIGITAL AGRICULTURE
Precision Weed 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...
Harvest Weed Seed Management
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Allow Us to Introduce Ourselves (Again!)
Like the science we study and share, GROW is evolving and expanding quickly, and we decided it was time for our website to...
DIGITAL AGRICULTURE
Precision Weed Management
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Evaluating a New Weed Killer: Blue Light and Heat
Harvest weed seed control is a growing area of interest and study for farmers and researchers looking to target weed seeds during...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
Industry News
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?
Giant Foxtail
Broadleaf Signalgrass
Redroot & Smooth Pigweed
Texas Millet (Panicum)
Canada Thistle
Common Pokeweed
Cheat
Rush Skeletonweed
Russian Thistle
Prickly Lettuce
Mayweed Chamomile
Field Bindweed
