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
HWSC in the Pacific Northwest: Simon Crawford’s First Year with a Seed Impact Mill
There’s a new tool at work in the fields of JIG Farms – a seed impact mill. Owned and operated by Simon Crawford, JIG...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
featured
Grow News
Weed Control Remains a Primary Goal for Cover Crop Users
The numbers are in, and weed control remains one of farmers’ primary – and most successful – goals for adding cover crops...
Cover Crops
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds
Dale and Nick Druffel farm almost 2,800 acres near Uniontown, WA, in the beautiful rolling hills of the Palouse Region. As...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Prevention
Grow News
Harvest Weed Seed Control
HWSC in the Pacific Northwest: Farmers Lead the Way in this Series
The Palouse region is the heartland of the inland Pacific Northwest (PNW), covering the stunningly beautiful landscapes of...
Herbicide Resistant Weeds
Harvest Weed Seed Management
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Three Things to Know About Spot Spray Technology Today
If you aren’t familiar with the growing industry of precision weed applications – known generically as spot spray, smart...
Precision Weed Management
Industry News
Herbicide Resistant Weeds
News From Other Sources
DIGITAL AGRICULTURE
Chaff Lining Limits Weed Seed Spread at Harvest, Research Finds
See those waterhemp escapes towering over your soybeans right now? They’re looking forward to harvest, when combines will mow...
Harvest Weed Seed Management
Prevention
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
The Hunt to Learn How Much Herbicide is Intercepted by a Cover Crop
A thick stand of cover crops can help suppress weeds, but it can also intercept residual herbicides sprayed in the spring to...
Grow News
Integrated Weed Management Innovations
Cover Crops
Should You Adjust Cover Crop Seeding Rates as Planting Dates Change?
Cover crop seeding is often the last box to check in the fall for farmers, and planting windows don’t always cooperate. Is...
Prevention
Industry News
Integrated Weed Management Innovations
Cover Crops
Planting Fall Covers? Know Your Herbicide Carryover Risks.
It’s fall cover crop seeding time, and with large swaths of the Midwest facing droughty soils, herbicide carryover injury could...
Grow News
Cover Crops
featured
Is it Time to Consider Harvest Weed Seed Control?
Ah, August — when the weed control failures of spring and early summer creep above the canopy for all to see. If you’re...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Harvest Weed Seed Management
Prevention
Grow News
The Lowdown on Flowering Weeds & Viable Seeds
As the days shorten and the heat soars, those weed escapes in your fields may be getting ready to make their annual seedbank...
Prevention
Grow News
Mechanical Weed Control
Harvest Weed Seed Management
Farmer Forum Recap: Cover Crop Seeding
In GROW’s latest Farmer Forum, a panel of farmers from Delaware, New York and Texas shared their experiences with all aspects...
Integrated Weed Management Innovations
Cover Crops
Prevention
Grow News
Weed Control Remains a Primary Goal for Cover Crop Users
The numbers are in, and weed control remains one of farmers’ primary – and most successful – goals for adding cover crops...
Cover Crops
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
The Hunt to Learn How Much Herbicide is Intercepted by a Cover Crop
A thick stand of cover crops can help suppress weeds, but it can also intercept residual herbicides sprayed in the spring to...
Grow News
Integrated Weed Management Innovations
Cover Crops
Should You Adjust Cover Crop Seeding Rates as Planting Dates Change?
Cover crop seeding is often the last box to check in the fall for farmers, and planting windows don’t always cooperate. Is...
Prevention
Industry News
Integrated Weed Management Innovations
Cover Crops
Planting Fall Covers? Know Your Herbicide Carryover Risks.
It’s fall cover crop seeding time, and with large swaths of the Midwest facing droughty soils, herbicide carryover injury could...
Grow News
Cover Crops
featured
Farmer Forum Recap: Cover Crop Seeding
In GROW’s latest Farmer Forum, a panel of farmers from Delaware, New York and Texas shared their experiences with all aspects...
Integrated Weed Management Innovations
Cover Crops
Prevention
Grow News
The Cover Crop That Never Dies: Scientists Explore Living Mulch
Imagine a cover crop that never stops growing — nestled between the rows of a cash crop, continuously suppressing weeds and...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Prevention
Industry News
Join a GROW Farmer Forum on Cover Crop Seeding
GROW will be hosting a Farmer Forum on July 18th, 2023, at 2 p.m. ET. The forum’s presenters will explore everything to do...
Integrated Weed Management Innovations
Cover Crops
Prevention
featured
Grow News
Farmer Case Study: Using Wheat as a Cover Crop & Managing Nitrogen Tie-Up
“We are in Palmer amaranth country down here,” as Cumberland, Virginia farmer Anthony Beery puts it. Beery, who grows row...
Grow News
featured
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Prevention
How Does Planting Green Affect Herbicide Use, Soil Moisture & More?
The practice of planting green into a living cover crop stand can be a great tool for suppressing weeds, but it comes with a lot...
Prevention
Industry News
Integrated Weed Management Innovations
Cover Crops
How to Use “Many Little Hammers” to Manage Waterhemp
It’s time to catch weeds by surprise. They know our herbicide habits pretty well, but what if farmers could start targeting...
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Narrow Rows & Cover Crops Boost Weed Control in Soybeans
If your soybean herbicide program needs a new wingman or two, Justine Fisher has two suggestions: cover crops and narrow soybean...
Cover Crops
Integrated Weed Management Innovations
Prevention
Herbicide Resistant Weeds
featured
News From Other Sources
Research Deep Dive: How to Suppress Palmer Amaranth with Cover Crops
Should you plant brown or green into cover crops? Roll your cover or leave it standing? How much biomass do you need? These are...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Prevention
Grow News
HWSC in the Pacific Northwest: Simon Crawford’s First Year with a Seed Impact Mill
There’s a new tool at work in the fields of JIG Farms – a seed impact mill. Owned and operated by Simon Crawford, JIG...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
featured
Grow News
HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds
Dale and Nick Druffel farm almost 2,800 acres near Uniontown, WA, in the beautiful rolling hills of the Palouse Region. As...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Prevention
Grow News
Harvest Weed Seed Control
HWSC in the Pacific Northwest: Farmers Lead the Way in this Series
The Palouse region is the heartland of the inland Pacific Northwest (PNW), covering the stunningly beautiful landscapes of...
Herbicide Resistant Weeds
Harvest Weed Seed Management
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
The Hunt to Learn How Much Herbicide is Intercepted by a Cover Crop
A thick stand of cover crops can help suppress weeds, but it can also intercept residual herbicides sprayed in the spring to...
Grow News
Integrated Weed Management Innovations
Cover Crops
Planting Fall Covers? Know Your Herbicide Carryover Risks.
It’s fall cover crop seeding time, and with large swaths of the Midwest facing droughty soils, herbicide carryover injury could...
Grow News
Cover Crops
featured
Is it Time to Consider Harvest Weed Seed Control?
Ah, August — when the weed control failures of spring and early summer creep above the canopy for all to see. If you’re...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Harvest Weed Seed Management
Prevention
Grow News
The Lowdown on Flowering Weeds & Viable Seeds
As the days shorten and the heat soars, those weed escapes in your fields may be getting ready to make their annual seedbank...
Prevention
Grow News
Mechanical Weed Control
Harvest Weed Seed Management
Farmer Forum Recap: Cover Crop Seeding
In GROW’s latest Farmer Forum, a panel of farmers from Delaware, New York and Texas shared their experiences with all aspects...
Integrated Weed Management Innovations
Cover Crops
Prevention
Grow News
Virginia Tech Scientists Test See & Spray Tech from Blue River & John Deere
The long-awaited promise of precision spray technology seems closer than ever, especially to Virginia Tech researchers who are...
Industry News
Herbicide Resistant Weeds
featured
DIGITAL AGRICULTURE
Grow News
Join a GROW Farmer Forum on Cover Crop Seeding
GROW will be hosting a Farmer Forum on July 18th, 2023, at 2 p.m. ET. The forum’s presenters will explore everything to do...
Integrated Weed Management Innovations
Cover Crops
Prevention
featured
Grow News
Farmer Case Study: Using Wheat as a Cover Crop & Managing Nitrogen Tie-Up
“We are in Palmer amaranth country down here,” as Cumberland, Virginia farmer Anthony Beery puts it. Beery, who grows row...
Grow News
featured
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Prevention
Time to Scout for Weed Escapes
The planting season is winding down, but crops are probably not the only thing taking advantage of your carefully prepared...
Herbicide Resistant Weeds
Prevention
Grow News
HWSC in the Pacific Northwest: Simon Crawford’s First Year with a Seed Impact Mill
There’s a new tool at work in the fields of JIG Farms – a seed impact mill. Owned and operated by Simon Crawford, JIG...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
featured
Grow News
Weed Control Remains a Primary Goal for Cover Crop Users
The numbers are in, and weed control remains one of farmers’ primary – and most successful – goals for adding cover crops...
Cover Crops
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds
Dale and Nick Druffel farm almost 2,800 acres near Uniontown, WA, in the beautiful rolling hills of the Palouse Region. As...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Prevention
Grow News
Harvest Weed Seed Control
HWSC in the Pacific Northwest: Farmers Lead the Way in this Series
The Palouse region is the heartland of the inland Pacific Northwest (PNW), covering the stunningly beautiful landscapes of...
Herbicide Resistant Weeds
Harvest Weed Seed Management
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Three Things to Know About Spot Spray Technology Today
If you aren’t familiar with the growing industry of precision weed applications – known generically as spot spray, smart...
Precision Weed Management
Industry News
Herbicide Resistant Weeds
News From Other Sources
DIGITAL AGRICULTURE
The Cover Crop That Never Dies: Scientists Explore Living Mulch
Imagine a cover crop that never stops growing — nestled between the rows of a cash crop, continuously suppressing weeds and...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Prevention
Industry News
Virginia Tech Scientists Test See & Spray Tech from Blue River & John Deere
The long-awaited promise of precision spray technology seems closer than ever, especially to Virginia Tech researchers who are...
Industry News
Herbicide Resistant Weeds
featured
DIGITAL AGRICULTURE
Grow News
Catch & Kill: Targeting the Seedbank with Harvest Weed Seed Control
Can harvest weed seed control technology actually reduce the vast deposits of weed seeds buried in Midwest soybean fields? ...
Harvest Weed Seed Control
Prevention
Integrated Weed Management Innovations
Herbicide Resistant Weeds
featured
Mechanical Weed Control
Industry News
Harvest Weed Seed Management
Farmer Case Study: Using Wheat as a Cover Crop & Managing Nitrogen Tie-Up
“We are in Palmer amaranth country down here,” as Cumberland, Virginia farmer Anthony Beery puts it. Beery, who grows row...
Grow News
featured
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Prevention
Time to Scout for Weed Escapes
The planting season is winding down, but crops are probably not the only thing taking advantage of your carefully prepared...
Herbicide Resistant Weeds
Prevention
Grow News
How to Use “Many Little Hammers” to Manage Waterhemp
It’s time to catch weeds by surprise. They know our herbicide habits pretty well, but what if farmers could start targeting...
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Narrow Rows & Cover Crops Boost Weed Control in Soybeans
If your soybean herbicide program needs a new wingman or two, Justine Fisher has two suggestions: cover crops and narrow soybean...
Cover Crops
Integrated Weed Management Innovations
Prevention
Herbicide Resistant Weeds
featured
News From Other Sources
HWSC in the Pacific Northwest: Simon Crawford’s First Year with a Seed Impact Mill
There’s a new tool at work in the fields of JIG Farms – a seed impact mill. Owned and operated by Simon Crawford, JIG...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
featured
Grow News
HWSC in the Pacific Northwest: Druffel Farms Adds a Seed Impact Mill to Manage Weeds
Dale and Nick Druffel farm almost 2,800 acres near Uniontown, WA, in the beautiful rolling hills of the Palouse Region. As...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Prevention
Grow News
Harvest Weed Seed Control
HWSC in the Pacific Northwest: Farmers Lead the Way in this Series
The Palouse region is the heartland of the inland Pacific Northwest (PNW), covering the stunningly beautiful landscapes of...
Herbicide Resistant Weeds
Harvest Weed Seed Management
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Chaff Lining Limits Weed Seed Spread at Harvest, Research Finds
See those waterhemp escapes towering over your soybeans right now? They’re looking forward to harvest, when combines will mow...
Harvest Weed Seed Management
Prevention
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Is it Time to Consider Harvest Weed Seed Control?
Ah, August — when the weed control failures of spring and early summer creep above the canopy for all to see. If you’re...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Harvest Weed Seed Management
Prevention
Grow News
Catch & Kill: Targeting the Seedbank with Harvest Weed Seed Control
Can harvest weed seed control technology actually reduce the vast deposits of weed seeds buried in Midwest soybean fields? ...
Harvest Weed Seed Control
Prevention
Integrated Weed Management Innovations
Herbicide Resistant Weeds
featured
Mechanical Weed Control
Industry News
Harvest Weed Seed Management
Updates on Harvest Weed Seed Control from WSSA Members Across the Country
Harvest weed seed control research is growing across the U.S., with farmers and researchers trying out chaff lining and seed...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Harvest Weed Seed Management
featured
How to Manage Weeds in the Face of Regulation and Resistance
There’s a double threat looming for farmers using herbicides alone to manage weeds: regulation and resistance. Both are...
Herbicide Resistant Weeds
Herbicide Resistance
Mechanical Weed Control
News From Other Sources
Weed Electrocution
Grow News
Cover Crops
Industry News
Harvest Weed Seed Control
Harvest Weed Seed Management
Integrated Weed Management Innovations
Prevention
Are You a Fan of DIY Weed Control? Try Chaff Lining.
Harvest weed seed control doesn’t have to be fancy or expensive. Just ask Michael Flessner, Extension Weed Specialist at...
Harvest Weed Seed Management
Prevention
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
The Australian Weed Control Revolution
Harvest weed seed control is an Australian innovation born of necessity. Farmers have long relied heavily on herbicides in the...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Herbicide Resistance
News From Other Sources
Harvest Weed Seed Management
Prevention
Industry News
featured
Harvest Weed Seed Control
Farmer Forum Recap: Combine Set-Up for Threshing Green Material
In the final Farmer Forum of the 2022 season on November 29, Australian presenters shared their combine threshing secrets for...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Harvest Weed Seed Management
featured
Grow News
The Fate of Weed Seeds: Where Do They Go in a Combine?
Weed seeds vanish from our view when they enter a combine at harvest, but Virginia Tech researchers want to unmask the mystery of...
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
featured
Grow 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 wide-spread use of no-till and limited cultivation for weed control, improving soil health. However, over reliance on a few key herbicides has caused the development of particularly problematic 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) combines various methods to reduce or eliminate the effect of weeds on crop production over time, using a combination of practices that are most effective for solving specific weed issues. Techniques include:
In the Fields
What Are Your Problem Weeds?
Redroot & Smooth Pigweed
Texas Panicum
Canada Thistle
Common Pokeweed
Cheat
Mustard Species in Wheat
Rush Skeletonweed
Russian Thistle
Prickly Lettuce
Mayweed Chamomile
Field Bindweed
Common Barberry
