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

After the Volts: Is Weed Electrocution Safe for the Soil?

  April 9, 2024   Grow IWM
We know getting zapped with high voltages of electricity can be a deadly affair for weeds, which has made weed electrocution a...
  Industry News      Integrated Weed Management Innovations      Mechanical Weed Control      News From Other Sources      Weed Electrocution   

Meet Science for Success! 

  April 5, 2024   Grow IWM
Farmers successfully grow millions of acres of soybeans every year, but we know they are always looking for ways to better...
  Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources      Grow News      Industry News   

Join a GROW Farmer Forum on Drones & Weed Management

  April 4, 2024   Grow IWM
GROW will host a Farmer Forum on April 15, 2024, at 2 p.m. ET. The Forum will feature a panel of speakers across the country who...
  DIGITAL AGRICULTURE      Precision Weed Management      Grow News      Industry News      Integrated Weed Management Innovations   

The Lowdown on Roller Crimpers

  April 2, 2024   Grow IWM
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

  March 26, 2024   Grow IWM
 When adjusting your planter to run through high-residue cover crops, Trey Hill has some advice: Don’t get too...
  Integrated Weed Management Innovations      Cover Crops      Grow News   

GROW Reports on New Harvest Weed Seed Control Research in Australia

  March 19, 2024   Grow IWM
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 Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources      Harvest Weed Seed Management      Grow News   

Allow Us to Introduce Ourselves (Again!)

  March 14, 2024   Grow IWM
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      DIGITAL AGRICULTURE      Herbicide Resistant Weeds      Precision Weed Management      Cover Crops   

Narrow Rows are a Weed Control Win, New Study Says

  March 12, 2024   Grow IWM
If you can’t beat them, crowd them out! That’s the wisdom from a new meta-analysis on the effect of narrow rows in corn and...
  Industry News      Integrated Weed Management Innovations      Prevention   

Meet the Crop Protection Network (CPN)!

  March 8, 2024   Grow IWM
Protecting crops from pests is a billion-dollar business, and there’s a lot of information swirling around on how best to do...
  Grow News      Industry News      News From Other Sources   

Evaluating a New Weed Killer: Blue Light and Heat

  March 5, 2024   Grow IWM
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 Management      Industry News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds   

Precision Weed Management: New Industry, New Webpage!

  February 27, 2024   Grow IWM
You might have noticed a new webpage appeared in GROW’s Weed Management Toolbox recently, called Precision Weed Management. (If...
  Integrated Weed Management Innovations      Precision Weed Management      Grow News      DIGITAL AGRICULTURE      Industry News   

The Silver Bullet That Wasn’t: Glyphosate’s Declining Weed Control Over 25 Years

  February 20, 2024   Grow IWM
The following is reprinted from University of Illinois’ ACES News. It has been a quarter century since corn and soybeans...
  News From Other Sources      Herbicide Resistance      Industry News      Herbicide Resistant Weeds   

The Lowdown on Roller Crimpers

  April 2, 2024   Grow IWM
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

  March 26, 2024   Grow IWM
 When adjusting your planter to run through high-residue cover crops, Trey Hill has some advice: Don’t get too...
  Integrated Weed Management Innovations      Cover Crops      Grow News   

Allow Us to Introduce Ourselves (Again!)

  March 14, 2024   Grow IWM
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      DIGITAL AGRICULTURE      Herbicide Resistant Weeds      Precision Weed Management      Cover Crops   

Cover Crops and Weed Control in the Southeast: A Battle for Resources

  February 13, 2024   Grow IWM
You can’t keep a Southern weed down for long.  That’s the takeaway from a recently published meta-analysis of cover...
  Grow News      Industry News      Herbicide Resistant Weeds      Cover Crops      Prevention   

Cover Crops for Weed Control: The Keys for Success

  January 23, 2024   Grow IWM
Just like any other crop, winter weeds can outcompete a cover crop if that cover crop has poor germination or establishment. So...
  News From Other Sources      Cover Crops      Prevention      Industry News      Herbicide Resistant Weeds   

The Hunt to Make Cereal Rye More Competitive Above & Below Ground

  January 16, 2024   Grow IWM
There are a lot of ways to keep a weed seed down with cover crops. Above ground, you can rob them of the light, temperatures,...
  Prevention      Grow News      Industry News      Herbicide Resistant Weeds      News From Other Sources      Cover Crops   

How to Make Cover Crops Work in Montana

  January 2, 2024   Grow IWM
Water is a precious commodity in Montana cropping and livestock systems, where annual rainfall amounts can range from 6 to 22...
  Grow News      Industry News      News From Other Sources      Cover Crops   

New Resource Alert: The Weed Management Planner

  December 19, 2023   Grow IWM
Creating a better weed control strategy just got a little easier! GROW’s newest resource, the Weed Management Planner, is...
  Mechanical Weed Control      Cover Crops      Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Harvest Weed Seed Management      Herbicide Resistant Weeds      Prevention   

New Penn State Guide Tackles Weed Control in Organic No-Till Soybean Systems

  December 5, 2023   Grow IWM
Imagine a weed management system with no access to herbicides and no conventional tillage implements. Intimidated? Welcome to the...
  Mechanical Weed Control      Cover Crops      Weed Electrocution      Industry News      Integrated Weed Management Innovations      Herbicide Resistant Weeds   

The Latest on Herbicide Resistance & Weed Management in Montana

  October 31, 2023   Grow IWM
GROW recently caught up with Montana State University weed scientists, Dr. Tim Seipel and Dr. Lovreet Shergill, for a deep dive...
  Industry News      Integrated Weed Management Innovations      Mechanical Weed Control      Cover Crops      Herbicide Resistant Weeds      Harvest Weed Seed Management   

Interseeding Cover Crops in Corn: A Research Deep Dive

  October 17, 2023   Grow IWM
Interseeding cover crops into standing corn can help growers avoid the hustle and delays of harvest season and give their covers...
  Herbicide Resistant Weeds      Cover Crops      Industry News      Integrated Weed Management Innovations   

EPA Tours Maryland Crops & Weeds Research  

  October 9, 2023   Grow IWM
In its continuing quest to keep regulators connected with current farming practices, the Weed Science Society of America (WSSA),...
  Mechanical Weed Control      News From Other Sources      Cover Crops      Grow News      featured      Herbicide Resistant Weeds   

Meet Science for Success! 

  April 5, 2024   Grow IWM
Farmers successfully grow millions of acres of soybeans every year, but we know they are always looking for ways to better...
  Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources      Grow News      Industry News   

Join a GROW Farmer Forum on Drones & Weed Management

  April 4, 2024   Grow IWM
GROW will host a Farmer Forum on April 15, 2024, at 2 p.m. ET. The Forum will feature a panel of speakers across the country who...
  DIGITAL AGRICULTURE      Precision Weed Management      Grow News      Industry News      Integrated Weed Management Innovations   

The Lowdown on Roller Crimpers

  April 2, 2024   Grow IWM
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

  March 26, 2024   Grow IWM
 When adjusting your planter to run through high-residue cover crops, Trey Hill has some advice: Don’t get too...
  Integrated Weed Management Innovations      Cover Crops      Grow News   

GROW Reports on New Harvest Weed Seed Control Research in Australia

  March 19, 2024   Grow IWM
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 Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources      Harvest Weed Seed Management      Grow News   

Allow Us to Introduce Ourselves (Again!)

  March 14, 2024   Grow IWM
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      DIGITAL AGRICULTURE      Herbicide Resistant Weeds      Precision Weed Management      Cover Crops   

Meet the Crop Protection Network (CPN)!

  March 8, 2024   Grow IWM
Protecting crops from pests is a billion-dollar business, and there’s a lot of information swirling around on how best to do...
  Grow News      Industry News      News From Other Sources   

Precision Weed Management: New Industry, New Webpage!

  February 27, 2024   Grow IWM
You might have noticed a new webpage appeared in GROW’s Weed Management Toolbox recently, called Precision Weed Management. (If...
  Integrated Weed Management Innovations      Precision Weed Management      Grow News      DIGITAL AGRICULTURE      Industry News   

Cover Crops and Weed Control in the Southeast: A Battle for Resources

  February 13, 2024   Grow IWM
You can’t keep a Southern weed down for long.  That’s the takeaway from a recently published meta-analysis of cover...
  Grow News      Industry News      Herbicide Resistant Weeds      Cover Crops      Prevention   

Testing for Herbicide Resistance: A Look at Montana State’s Options

  February 6, 2024   Grow IWM
When a herbicide stops killing a weed, farmers are left with a lot of questions. Is it herbicide resistance? Will other...
  Grow News      Herbicide Resistant Weeds      News From Other Sources      Herbicide Resistance   

The Hunt to Make Cereal Rye More Competitive Above & Below Ground

  January 16, 2024   Grow IWM
There are a lot of ways to keep a weed seed down with cover crops. Above ground, you can rob them of the light, temperatures,...
  Prevention      Grow News      Industry News      Herbicide Resistant Weeds      News From Other Sources      Cover Crops   

New Year, New Weedy Wisdom

  January 9, 2024   Grow IWM
The world is another year older, and its weeds are another year wiser. So what better way to jumpstart your New Year’s...
  Herbicide Resistant Weeds      News From Other Sources      Prevention      Grow News      Industry News   

Meet Science for Success! 

  April 5, 2024   Grow IWM
Farmers successfully grow millions of acres of soybeans every year, but we know they are always looking for ways to better...
  Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources      Grow News      Industry News   

GROW Reports on New Harvest Weed Seed Control Research in Australia

  March 19, 2024   Grow IWM
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 Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources      Harvest Weed Seed Management      Grow News   

Allow Us to Introduce Ourselves (Again!)

  March 14, 2024   Grow IWM
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      DIGITAL AGRICULTURE      Herbicide Resistant Weeds      Precision Weed Management      Cover Crops   

Evaluating a New Weed Killer: Blue Light and Heat

  March 5, 2024   Grow IWM
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 Management      Industry News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds   

The Silver Bullet That Wasn’t: Glyphosate’s Declining Weed Control Over 25 Years

  February 20, 2024   Grow IWM
The following is reprinted from University of Illinois’ ACES News. It has been a quarter century since corn and soybeans...
  News From Other Sources      Herbicide Resistance      Industry News      Herbicide Resistant Weeds   

Cover Crops and Weed Control in the Southeast: A Battle for Resources

  February 13, 2024   Grow IWM
You can’t keep a Southern weed down for long.  That’s the takeaway from a recently published meta-analysis of cover...
  Grow News      Industry News      Herbicide Resistant Weeds      Cover Crops      Prevention   

Testing for Herbicide Resistance: A Look at Montana State’s Options

  February 6, 2024   Grow IWM
When a herbicide stops killing a weed, farmers are left with a lot of questions. Is it herbicide resistance? Will other...
  Grow News      Herbicide Resistant Weeds      News From Other Sources      Herbicide Resistance   

New Herbicide-Tolerant Traits Could Boost Sorghum’s Rotational Benefits

  January 30, 2024   Grow IWM
Sorghum can be a great rotational crop option. It’s well suited to marginal soils, less drought-sensitive than corn, and can...
  Prevention      Industry News      Herbicide Resistant Weeds   

Cover Crops for Weed Control: The Keys for Success

  January 23, 2024   Grow IWM
Just like any other crop, winter weeds can outcompete a cover crop if that cover crop has poor germination or establishment. So...
  News From Other Sources      Cover Crops      Prevention      Industry News      Herbicide Resistant Weeds   

The Hunt to Make Cereal Rye More Competitive Above & Below Ground

  January 16, 2024   Grow IWM
There are a lot of ways to keep a weed seed down with cover crops. Above ground, you can rob them of the light, temperatures,...
  Prevention      Grow News      Industry News      Herbicide Resistant Weeds      News From Other Sources      Cover Crops   

New Year, New Weedy Wisdom

  January 9, 2024   Grow IWM
The world is another year older, and its weeds are another year wiser. So what better way to jumpstart your New Year’s...
  Herbicide Resistant Weeds      News From Other Sources      Prevention      Grow News      Industry News   

New Resource Alert: The Weed Management Planner

  December 19, 2023   Grow IWM
Creating a better weed control strategy just got a little easier! GROW’s newest resource, the Weed Management Planner, is...
  Mechanical Weed Control      Cover Crops      Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Harvest Weed Seed Management      Herbicide Resistant Weeds      Prevention   

GROW Reports on New Harvest Weed Seed Control Research in Australia

  March 19, 2024   Grow IWM
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 Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources      Harvest Weed Seed Management      Grow News   

Allow Us to Introduce Ourselves (Again!)

  March 14, 2024   Grow IWM
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      DIGITAL AGRICULTURE      Herbicide Resistant Weeds      Precision Weed Management      Cover Crops   

Evaluating a New Weed Killer: Blue Light and Heat

  March 5, 2024   Grow IWM
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 Management      Industry News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds   

New Resource Alert: The Weed Management Planner

  December 19, 2023   Grow IWM
Creating a better weed control strategy just got a little easier! GROW’s newest resource, the Weed Management Planner, is...
  Mechanical Weed Control      Cover Crops      Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Harvest Weed Seed Management      Herbicide Resistant Weeds      Prevention   

Farmer Forum Recap: Using Seed Impact Mills for Weed Control

  December 12, 2023   Grow IWM
In GROW’s last Farmer Forum of 2023, a panel of farmers from Texas and Washington shared their experiences using seed impact...
  Harvest Weed Seed Management      Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds      Mechanical Weed Control   

Making Chaff Lining Work on Shepherd Grain Farms

  November 28, 2023   Grow IWM
John Shepherd is no stranger to integrated weed management. The Virginia farmer already uses cover crops and herbicides to battle...
  Integrated Weed Management Innovations      Herbicide Resistant Weeds      Mechanical Weed Control      Harvest Weed Seed Management      Grow News      Harvest Weed Seed Control   

Eastern Shore Farmer Tries Chaff Lining to Defeat Weeds

  November 21, 2023   Grow IWM
Third time is usually the charm, but it only took two tries for farmer Jarrett Sturgis to declare chaff lining a likely success...
  Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds      Harvest Weed Seed Management   

Join a GROW Farmer Forum on Using Seed Impact Mills for Weed Control

  November 17, 2023   Grow IWM
This forum is now archived and available HERE. GROW will be hosting a Farmer Forum on December 4th, 2023, at 1 p.m. ET. Listen in...
  Harvest Weed Seed Management      Prevention      Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds   

Cheatgrass (Downy Brome) Management in the Western U.S. 

  November 7, 2023   Grow IWM
Downy brome is a weed so famous for stealing wheat yields that the pioneers dubbed it “cheatgrass,” when they first...
  Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds      News From Other Sources   

Scout for Palmer Amaranth and Waterhemp to Prevent Spreading Seeds with the Combine

  October 24, 2023   Grow IWM
The following is reprinted from Penn State Extension. Due to dry conditions early in the production season, we are seeing more...
  Mechanical Weed Control      Harvest Weed Seed Management      Industry News      Prevention      Harvest Weed Seed Control      Herbicide Resistant Weeds   

HWSC in the Pacific Northwest: Greene Ridge Farms Tackles Tough Weeds with Seed Impact Mill

  October 3, 2023   Grow IWM
Mark Greene’s fields only see 10 to 12 inches of rain on his farm in Asotin County, a flat, semiarid section of the Palouse...
  Mechanical Weed Control      Prevention      Grow News      Harvest Weed Seed Control      Integrated Weed Management Innovations      Herbicide Resistant Weeds   

A Weed Seed Killing Machine: Testing the Redekop Seed Control Unit 

  September 28, 2023   Grow IWM
Killing weed seeds is dirty work, but with herbicide-resistant weeds on the rise, someone has to do it! That’s why Virginia...
  Integrated Weed Management Innovations      Herbicide Resistant Weeds      Mechanical Weed Control      Prevention      Grow News      Harvest Weed Seed 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.

Prevention Cultural Chemical Biological Mechanical IWM

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:

In the Fields

What Are Your Problem Weeds?

Redroot & Smooth Pigweed
Texas Panicum
Canada Thistle
Common Pokeweed
Mustard Species in Wheat
Rush Skeletonweed
Russian Thistle
Prickly Lettuce
Mayweed Chamomile
Field Bindweed
Common Barberry