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
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...
Cover Crops
Prevention
Industry News
Integrated Weed Management Innovations
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...
Grow News
Herbicide Resistant Weeds
Prevention
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...
News From Other Sources
Cover Crops
Integrated Weed Management Innovations
Prevention
Herbicide Resistant Weeds
featured
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...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Prevention
New Tool Explores Available Cover Crop Incentive Programs
A growing number of programs exist to reward and incentivize farmers for using cover crops. But finding and understanding them...
Cover Crops
featured
Industry News
News From Other Sources
Scientists Use Drone Cameras to Spot Herbicide-Resistant Plants
Finding and confirming herbicide-resistant weeds can be a real slog. It takes months, sometimes years, of field and lab work to...
DIGITAL AGRICULTURE
Industry News
Herbicide Resistant Weeds
News From Other Sources
Prevention
Herbicide Resistance
How to Identify Grass Weeds Early in the Season
Grasses are some of the trickiest weed species to identify. They are easier to distinguish once their seedheads emerge, but...
Grow News
Herbicide Resistant Weeds
Prevention
How to Sample Cover Crop Biomass
What are you getting out of your cover crop? Knowing how much of each cover crop species is growing in your field is the first...
Grow News
Cover Crops
Why Starting Weed-Free at Planting is So Important
Starting weed-free (also known as “starting clean”) means planting into fields without emerged weeds, which provides...
Grow News
Herbicide Resistant Weeds
Prevention
featured
Planting Green: Do Higher Cover Crop Seeding Rates Improve Weed Suppression?
The idea that increasing cover crop seeding rates will increase the cover crop’s biomass and weed suppressive benefits is a...
Industry News
Integrated Weed Management Innovations
News From Other Sources
Cover Crops
Farmer Forum Recap: Cover Crop Termination
In GROW’s first Farmer Forum of the 2023 season, a panel of farmers from Wisconsin, Pennsylvania and Virginia shared their...
Cover Crops
featured
Grow News
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...
Cover Crops
Prevention
Industry News
Integrated Weed Management Innovations
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...
News From Other Sources
Cover Crops
Integrated Weed Management Innovations
Prevention
Herbicide Resistant Weeds
featured
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...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Prevention
New Tool Explores Available Cover Crop Incentive Programs
A growing number of programs exist to reward and incentivize farmers for using cover crops. But finding and understanding them...
Cover Crops
featured
Industry News
News From Other Sources
How to Sample Cover Crop Biomass
What are you getting out of your cover crop? Knowing how much of each cover crop species is growing in your field is the first...
Grow News
Cover Crops
Planting Green: Do Higher Cover Crop Seeding Rates Improve Weed Suppression?
The idea that increasing cover crop seeding rates will increase the cover crop’s biomass and weed suppressive benefits is a...
Industry News
Integrated Weed Management Innovations
News From Other Sources
Cover Crops
Farmer Forum Recap: Cover Crop Termination
In GROW’s first Farmer Forum of the 2023 season, a panel of farmers from Wisconsin, Pennsylvania and Virginia shared their...
Cover Crops
featured
Grow News
Mowing, Zapping, and Outcompeting Weeds: Opportunities and Trade-Offs
Do you have a passion for finding alternative solutions to manage weeds? Do you like to stay up to date on the latest weed...
Mechanical Weed Control
News From Other Sources
Cover Crops
Prevention
Industry News
Weed Electrocution
Integrated Weed Management Innovations
Join a GROW Farmer Forum on Cover Crop Termination
GROW will be hosting its its first Farmer Forum of the 2023 season on Wednesday, March 29, at 2 p.m. EDT. Listen in —...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
How Does Cover Crop Residue Interact with Soil Residual Herbicides?
We know cover crops can provide a physical barrier on top of the soil to smother and suppress emerging weeds. But many...
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Prevention
featured
Four Takeaways on Cover Crops and Weed Control from WSSA
Using cover crops for weed suppression can be complicated, so it’s little surprise that the past decade’s worth of research...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Grow News
featured
Industry News
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...
Grow News
Herbicide Resistant Weeds
Prevention
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...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Prevention
How to Identify Grass Weeds Early in the Season
Grasses are some of the trickiest weed species to identify. They are easier to distinguish once their seedheads emerge, but...
Grow News
Herbicide Resistant Weeds
Prevention
How to Sample Cover Crop Biomass
What are you getting out of your cover crop? Knowing how much of each cover crop species is growing in your field is the first...
Grow News
Cover Crops
Why Starting Weed-Free at Planting is So Important
Starting weed-free (also known as “starting clean”) means planting into fields without emerged weeds, which provides...
Grow News
Herbicide Resistant Weeds
Prevention
featured
Farmer Forum Recap: Cover Crop Termination
In GROW’s first Farmer Forum of the 2023 season, a panel of farmers from Wisconsin, Pennsylvania and Virginia shared their...
Cover Crops
featured
Grow News
Spring is Here. Time to Find Your Favorite Weed ID Tool!
Can you recognize every weed growing in your field this spring, from seedling to seedhead? If not, GROW’s Weed Identification...
Grow News
Prevention
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...
Harvest Weed Seed Management
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
Join a GROW Farmer Forum on Cover Crop Termination
GROW will be hosting its its first Farmer Forum of the 2023 season on Wednesday, March 29, at 2 p.m. EDT. Listen in —...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
GROW is Hiring a Post-Doctoral Researcher
A unique opportunity is now open for a post-doctoral researcher to join GROW (www.growiwm.org), a dynamic research and extension...
Grow News
featured
How a National Image Repository Can Transform Agriculture
The National Agricultural Image Repository (NAIR) is a large-scale, multi-state effort to build and share weed and crop images,...
Grow News
featured
DIGITAL AGRICULTURE
The Ag Image Repository: A First Step in Accessible Precision Ag
So much of precision agriculture – such as precision spraying technology or weed-identifying apps – relies on images. ...
featured
DIGITAL AGRICULTURE
Grow News
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...
Grow News
Herbicide Resistant Weeds
Prevention
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...
News From Other Sources
Cover Crops
Integrated Weed Management Innovations
Prevention
Herbicide Resistant Weeds
featured
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...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Prevention
Scientists Use Drone Cameras to Spot Herbicide-Resistant Plants
Finding and confirming herbicide-resistant weeds can be a real slog. It takes months, sometimes years, of field and lab work to...
DIGITAL AGRICULTURE
Industry News
Herbicide Resistant Weeds
News From Other Sources
Prevention
Herbicide Resistance
How to Identify Grass Weeds Early in the Season
Grasses are some of the trickiest weed species to identify. They are easier to distinguish once their seedheads emerge, but...
Grow News
Herbicide Resistant Weeds
Prevention
Why Starting Weed-Free at Planting is So Important
Starting weed-free (also known as “starting clean”) means planting into fields without emerged weeds, which provides...
Grow News
Herbicide Resistant Weeds
Prevention
featured
Join a GROW Farmer Forum on Cover Crop Termination
GROW will be hosting its its first Farmer Forum of the 2023 season on Wednesday, March 29, at 2 p.m. EDT. Listen in —...
Grow News
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Cover Crops
How Does Cover Crop Residue Interact with Soil Residual Herbicides?
We know cover crops can provide a physical barrier on top of the soil to smother and suppress emerging weeds. But many...
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Prevention
featured
Three Weird Ways Weed Seeds Can Travel
Weeds have plenty of biological tricks to spread seeds on their own, but they also get an assist from a few surprising sources,...
featured
Grow News
Herbicide Resistant Weeds
Prevention
Four Takeaways on Cover Crops and Weed Control from WSSA
Using cover crops for weed suppression can be complicated, so it’s little surprise that the past decade’s worth of research...
Integrated Weed Management Innovations
Herbicide Resistant Weeds
News From Other Sources
Cover Crops
Grow News
featured
Industry News
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...
Harvest Weed Seed Control
Harvest Weed Seed Management
Integrated Weed Management Innovations
Prevention
Herbicide Resistant Weeds
Herbicide Resistance
Mechanical Weed Control
News From Other Sources
Weed Electrocution
Grow News
Cover Crops
Industry News
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...
Harvest Weed Seed Management
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
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...
Harvest Weed Seed Control
Harvest Weed Seed Management
Integrated Weed Management Innovations
Prevention
Herbicide Resistant Weeds
Herbicide Resistance
Mechanical Weed Control
News From Other Sources
Weed Electrocution
Grow News
Cover Crops
Industry News
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...
Prevention
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
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...
News From Other Sources
Harvest Weed Seed Management
Prevention
Industry News
featured
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Herbicide Resistance
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...
Mechanical Weed Control
Harvest Weed Seed Management
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
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...
Herbicide Resistant Weeds
Harvest Weed Seed Management
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Farmer Forum Recap: How to Optimize Threshing Settings for Harvest Weed Seed Control
In GROW’s fourth Farmer Forum of the season, Australian combine experts took a deep dive into combine settings for threshing...
Harvest Weed Seed Management
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Does Harvest Weed Seed Control Work in Rice Fields?
Texas researchers want to know how harvest weed seed control tactics such as the integrated Harrington Seed Destructor (iHSD)...
Harvest Weed Seed Management
featured
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Texas Rice Farmer Tries Out iHSD to Halt Weed Seedbank
GROW headed to Texas recently to interview Bryan Wiese, owner of Wiese Brothers Farm in Wharton, about his unique decision to try...
featured
Grow News
Harvest Weed Seed Control
Farmer Forum Recap: How to Set Up Combine Headers for Weed Seed Capture
In GROW’s third Farmer Forum of the season, Australian combine experts presented on how to set up a combine header to capture...
Grow News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Harvest Weed Seed Management
Meet Ray Harrington, Founder of the Harrington Seed Destructor
The Harrington Seed Destructor (HSD) is now an internationally known tool, but it all started more than two decades ago, as the...
Herbicide Resistant Weeds
Mechanical Weed Control
Harvest Weed Seed Management
Grow News
Harvest Weed Seed Control
featured
Integrated Weed Management Innovations
Can A Corn Header Capture Weed Seeds?
Capturing as many weed seeds as possible during the harvest operation is key to optimizing any harvest weed seed control option,...
featured
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 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
