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
New Penn State Guide Tackles Weed Control in Organic No-Till Soybean Systems
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
Making Chaff Lining Work on Shepherd Grain Farms
John Shepherd is no stranger to integrated weed management. The Virginia farmer already uses cover crops and herbicides to battle...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Eastern Shore Farmer Tries Chaff Lining to Defeat Weeds
Third time is usually the charm, but it only took two tries for farmer Jarrett Sturgis to declare chaff lining a likely success...
Harvest Weed Seed Management
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Join a GROW Farmer Forum on Using Seed Impact Mills for Weed Control
GROW will be hosting a Farmer Forum on December 4th, 2023, at 1 p.m. ET. Listen in as three U.S. farmers explain why they decided...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
Prevention
Narrow Soybean Rows: How to Manage Both Weeds & White Mold
When it comes to choosing soybean row spacing, some farmers feel torn between opting for narrow rows and better weed control or...
Precision Weed Management
Industry News
Herbicide Resistant Weeds
News From Other Sources
Prevention
Cheatgrass (Downy Brome) Management in the Western U.S.
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
Hiring Announcement: Precision Sustainable Agriculture
GROW’s partner organization, Precision Sustainable Agriculture (PSA), is hiring! PSA is a network of scientists and digital...
Grow News
Industry News
DIGITAL AGRICULTURE
Precision Weed Management
The Latest on Herbicide Resistance & Weed Management in Montana
GROW recently caught up with Montana State University weed scientists, Dr. Tim Seipel and Dr. Lovreet Shergill, for a deep dive...
Herbicide Resistant Weeds
Harvest Weed Seed Management
Industry News
Integrated Weed Management Innovations
Mechanical Weed Control
Cover Crops
Scout for Palmer Amaranth and Waterhemp to Prevent Spreading Seeds with the Combine
The following is reprinted from Penn State Extension. Due to dry conditions early in the production season, we are seeing more...
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Industry News
Prevention
Harvest Weed Seed Control
Interseeding Cover Crops in Corn: A Research Deep Dive
Interseeding cover crops into standing corn can help growers avoid the hustle and delays of harvest season and give their covers...
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
EPA Tours Maryland Crops & Weeds Research
In its continuing quest to keep regulators connected with current farming practices, the Weed Science Society of America (WSSA),...
Cover Crops
Grow News
featured
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
HWSC in the Pacific Northwest: Greene Ridge Farms Tackles Tough Weeds with Seed Impact Mill
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
New Penn State Guide Tackles Weed Control in Organic No-Till Soybean Systems
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
GROW recently caught up with Montana State University weed scientists, Dr. Tim Seipel and Dr. Lovreet Shergill, for a deep dive...
Herbicide Resistant Weeds
Harvest Weed Seed Management
Industry News
Integrated Weed Management Innovations
Mechanical Weed Control
Cover Crops
Interseeding Cover Crops in Corn: A Research Deep Dive
Interseeding cover crops into standing corn can help growers avoid the hustle and delays of harvest season and give their covers...
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
EPA Tours Maryland Crops & Weeds Research
In its continuing quest to keep regulators connected with current farming practices, the Weed Science Society of America (WSSA),...
Cover Crops
Grow News
featured
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
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. ...
Cover Crops
Prevention
Industry News
Integrated Weed Management Innovations
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...
featured
Grow News
Cover Crops
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...
Cover Crops
Prevention
Grow News
Integrated Weed Management Innovations
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...
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
Prevention
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...
Grow News
Integrated Weed Management Innovations
Cover Crops
Prevention
featured
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...
Cover Crops
Prevention
Grow News
featured
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Making Chaff Lining Work on Shepherd Grain Farms
John Shepherd is no stranger to integrated weed management. The Virginia farmer already uses cover crops and herbicides to battle...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Eastern Shore Farmer Tries Chaff Lining to Defeat Weeds
Third time is usually the charm, but it only took two tries for farmer Jarrett Sturgis to declare chaff lining a likely success...
Harvest Weed Seed Management
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Join a GROW Farmer Forum on Using Seed Impact Mills for Weed Control
GROW will be hosting a Farmer Forum on December 4th, 2023, at 1 p.m. ET. Listen in as three U.S. farmers explain why they decided...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
Prevention
Cheatgrass (Downy Brome) Management in the Western U.S.
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
Hiring Announcement: Precision Sustainable Agriculture
GROW’s partner organization, Precision Sustainable Agriculture (PSA), is hiring! PSA is a network of scientists and digital...
Grow News
Industry News
DIGITAL AGRICULTURE
Precision Weed Management
EPA Tours Maryland Crops & Weeds Research
In its continuing quest to keep regulators connected with current farming practices, the Weed Science Society of America (WSSA),...
Cover Crops
Grow News
featured
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
HWSC in the Pacific Northwest: Greene Ridge Farms Tackles Tough Weeds with Seed Impact Mill
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
A Weed Seed Killing Machine: Testing the Redekop Seed Control Unit
Killing weed seeds is dirty work, but with herbicide-resistant weeds on the rise, someone has to do it! That’s why Virginia...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
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...
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
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...
Mechanical Weed Control
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
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...
Harvest Weed Seed Management
Grow News
Industry News
Harvest Weed Seed Control
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
New Penn State Guide Tackles Weed Control in Organic No-Till Soybean Systems
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
Making Chaff Lining Work on Shepherd Grain Farms
John Shepherd is no stranger to integrated weed management. The Virginia farmer already uses cover crops and herbicides to battle...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Eastern Shore Farmer Tries Chaff Lining to Defeat Weeds
Third time is usually the charm, but it only took two tries for farmer Jarrett Sturgis to declare chaff lining a likely success...
Harvest Weed Seed Management
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Join a GROW Farmer Forum on Using Seed Impact Mills for Weed Control
GROW will be hosting a Farmer Forum on December 4th, 2023, at 1 p.m. ET. Listen in as three U.S. farmers explain why they decided...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
Prevention
Narrow Soybean Rows: How to Manage Both Weeds & White Mold
When it comes to choosing soybean row spacing, some farmers feel torn between opting for narrow rows and better weed control or...
Precision Weed Management
Industry News
Herbicide Resistant Weeds
News From Other Sources
Prevention
Cheatgrass (Downy Brome) Management in the Western U.S.
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
The Latest on Herbicide Resistance & Weed Management in Montana
GROW recently caught up with Montana State University weed scientists, Dr. Tim Seipel and Dr. Lovreet Shergill, for a deep dive...
Herbicide Resistant Weeds
Harvest Weed Seed Management
Industry News
Integrated Weed Management Innovations
Mechanical Weed Control
Cover Crops
Scout for Palmer Amaranth and Waterhemp to Prevent Spreading Seeds with the Combine
The following is reprinted from Penn State Extension. Due to dry conditions early in the production season, we are seeing more...
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Industry News
Prevention
Harvest Weed Seed Control
Interseeding Cover Crops in Corn: A Research Deep Dive
Interseeding cover crops into standing corn can help growers avoid the hustle and delays of harvest season and give their covers...
Industry News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
EPA Tours Maryland Crops & Weeds Research
In its continuing quest to keep regulators connected with current farming practices, the Weed Science Society of America (WSSA),...
Cover Crops
Grow News
featured
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
HWSC in the Pacific Northwest: Greene Ridge Farms Tackles Tough Weeds with Seed Impact Mill
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
A Weed Seed Killing Machine: Testing the Redekop Seed Control Unit
Killing weed seeds is dirty work, but with herbicide-resistant weeds on the rise, someone has to do it! That’s why Virginia...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Making Chaff Lining Work on Shepherd Grain Farms
John Shepherd is no stranger to integrated weed management. The Virginia farmer already uses cover crops and herbicides to battle...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Eastern Shore Farmer Tries Chaff Lining to Defeat Weeds
Third time is usually the charm, but it only took two tries for farmer Jarrett Sturgis to declare chaff lining a likely success...
Harvest Weed Seed Management
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Join a GROW Farmer Forum on Using Seed Impact Mills for Weed Control
GROW will be hosting a Farmer Forum on December 4th, 2023, at 1 p.m. ET. Listen in as three U.S. farmers explain why they decided...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
Prevention
Cheatgrass (Downy Brome) Management in the Western U.S.
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
The following is reprinted from Penn State Extension. Due to dry conditions early in the production season, we are seeing more...
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Industry News
Prevention
Harvest Weed Seed Control
HWSC in the Pacific Northwest: Greene Ridge Farms Tackles Tough Weeds with Seed Impact Mill
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
A Weed Seed Killing Machine: Testing the Redekop Seed Control Unit
Killing weed seeds is dirty work, but with herbicide-resistant weeds on the rise, someone has to do it! That’s why Virginia...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
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...
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
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...
Mechanical Weed Control
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
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...
Harvest Weed Seed Management
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
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...
Mechanical Weed Control
News From Other Sources
Harvest Weed Seed Management
Prevention
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
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...
Prevention
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
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?
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