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
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...
Cover Crops
Grow News
Herbicide Management
Industry News
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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
Herbicide Savings From Precision Spraying Technology
This article is reprinted with permission from Iowa State University Extension and Outreach Key Points Precision Spraying...
News From Other Sources
DIGITAL AGRICULTURE
Precision Weed Management
Industry News
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...
DIGITAL AGRICULTURE
Precision Weed Management
News From Other Sources
Herbicide Resistant Weeds
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...
Cover Crops
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
How Weed Electrocution Fits into a Maryland Farm
The sparks are flying on Aaron Cooper’s farm, Cutfresh Organics, on the Eastern Shore of Maryland. Not the romantic kind, mind...
Weed Electrocution
Mechanical Weed Control
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Spray Drone Research & Tech on Display at Mid-Atlantic Workshop
This article is reprinted with permission from Virginia Tech Cooperative Extension The Eastern Shore Agricultural Research and...
Precision Weed Management
DIGITAL AGRICULTURE
Industry News
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...
Integrated Weed Management Innovations
Harvest Weed Seed Control
Grow News
Mechanical Weed Control
Harvest Weed Seed Management
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....
Precision Weed Management
DIGITAL AGRICULTURE
Cover Crops
News From Other Sources
Integrated Weed Management Innovations
Communications and Post-Doc Positions Open at GROW
The GROW network is expanding! See two new positions open at this time — a GROW Content & Outreach Specialist located...
Grow News
Industry News
A Deep Dive on Precision Spraying with the WEED-IT
As the industry of precision sprayers expands, farmers are sorting through a growing list of commercial options. For Jesse...
Mechanical Weed Control
DIGITAL AGRICULTURE
Precision Weed Management
Herbicide Resistant Weeds
Industry News
Integrated Weed Management Innovations
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...
Cover Crops
Grow News
Herbicide Management
Industry News
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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...
Cover Crops
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
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....
Precision Weed Management
DIGITAL AGRICULTURE
Cover Crops
News From Other Sources
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...
Industry News
Integrated Weed Management Innovations
News From Other Sources
Cover Crops
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
Industry News
Herbicide Resistant Weeds
Cover Crops
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
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
The Lowdown on Roller Crimpers
Roller crimpers can be a valuable tool for terminating cover crops or simply managing cover crop residue, especially when...
Grow News
Integrated Weed Management Innovations
Cover Crops
A Look at Planter Adjustments for Planting into Cover Crops
When adjusting your planter to run through high-residue cover crops, Trey Hill has some advice: Don’t get too...
Grow News
Integrated Weed Management Innovations
Cover Crops
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...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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...
Cover Crops
Grow News
Herbicide Management
Industry News
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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...
Cover Crops
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
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...
Integrated Weed Management Innovations
Harvest Weed Seed Control
Grow News
Mechanical Weed Control
Harvest Weed Seed Management
Communications and Post-Doc Positions Open at GROW
The GROW network is expanding! See two new positions open at this time — a GROW Content & Outreach Specialist located...
Grow News
Industry News
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...
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Grow News
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...
Integrated Weed Management Innovations
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
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
Bonus Newsletter for GROW Subscribers
Starting in August, GROW subscribers will have a new e-monthly newsletter coming their way! Once a month, you’ll get a...
Grow News
Industry News
News From Other Sources
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...
Integrated Weed Management Innovations
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Weed Management in Double Crop Soybeans
Double the crop, half the weed control – that’s part of the allure of following wheat harvest with a second planting of...
Industry News
Herbicide Resistant Weeds
Prevention
Grow News
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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...
DIGITAL AGRICULTURE
Precision Weed Management
News From Other Sources
Herbicide Resistant Weeds
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...
Cover Crops
Herbicide Resistant Weeds
Integrated Weed Management Innovations
Grow News
How Weed Electrocution Fits into a Maryland Farm
The sparks are flying on Aaron Cooper’s farm, Cutfresh Organics, on the Eastern Shore of Maryland. Not the romantic kind, mind...
Weed Electrocution
Mechanical Weed Control
Herbicide Resistant Weeds
Integrated Weed Management Innovations
A Deep Dive on Precision Spraying with the WEED-IT
As the industry of precision sprayers expands, farmers are sorting through a growing list of commercial options. For Jesse...
Mechanical Weed Control
DIGITAL AGRICULTURE
Precision Weed Management
Herbicide Resistant Weeds
Industry News
Integrated Weed Management Innovations
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...
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Grow News
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...
Integrated Weed Management Innovations
Grow News
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
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
A Deep Dive on the See & Spray Ultimate System from John Deere & Blue River
See & Spray Ultimate, the recently introduced precision sprayer from John Deere and Blue River that uses cameras and computer...
Precision Weed Management
DIGITAL AGRICULTURE
Herbicide Resistant Weeds
Industry News
USDA-NIFA Grant Supports Microwave Tech to Zap Weed Seeds
The following is reprinted with permission from the Arkansas Agricultural Experiment Station. It’s not just for burritos and...
Industry News
Prevention
Herbicide Resistant Weeds
Integrated Weed Management Innovations
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...
Integrated Weed Management Innovations
Grow News
Harvest Weed Seed Control
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
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...
Integrated Weed Management Innovations
Harvest Weed Seed Control
Grow News
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...
Harvest Weed Seed Control
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Grow News
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...
Integrated Weed Management Innovations
Grow News
Harvest Weed Seed Control
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...
Integrated Weed Management Innovations
Grow News
Harvest Weed Seed Control
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
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...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
DIGITAL AGRICULTURE
Precision Weed Management
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...
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
New Resource Alert: The Weed Management Planner
Creating a better weed control strategy just got a little easier! GROW’s newest resource, the Weed Management Planner, is...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Cover Crops
Harvest Weed Seed Management
Prevention
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
