Getting Rid Of Weeds
Through Integrated Weed Management
We are a publicly led network coordinating research and outreach, providing science-based information and decision support tools to make agriculture more sustainable and precise. We work to develop integrated weed management solutions that are practical and adoptable.
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:
Recent IWM News
Influence of Integrated Weed Management Practices on When Soybean Canopy Develops
Diverse and integrated weed management (IWM) strategies based on the practices of crop rotation, competitive crop cultivars,...
Grow News
featured
Identifying summer annual grasses in grain crops
Name that grassy weed: GROW team member Dr. Mark VanGessel provides an overview of summer annual grass weed identification....
Herbicide Resistant Weeds
Why care about metabolic herbicide resistance?
Target site resistance has been the more common form of resistance, while metabolic resistance has been “flying under the...
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featured
Herbicide Resistance
How to quantify the benefits of cover crops with Steven Mirsky
In a recent episode of the Strip-Till Farmer podcast, associate editor Sarah Hill talked with Steven Mirsky about adopting cover...
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featured
Bayer CropScience and USDA Collaborate To Promote On-The-Farm Integrated Weed Management
USDA’s Agricultural Research Service-sponsored GROW network (www.growiwm.org) is pleased to collaborate with Bayer CropScience...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
A Practical Guide for Integrated Weed Management In Mid-Atlantic Grain Crops
Integrated Weed Management (IWM) means integrating multiple weed control tactics to optimize weed control. The past several...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
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featured
Tillage, weed control, and the weed seedbank.
Tillage is used primarily to prepare the soil for planting. But tillage can have other impacts including destroying...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
NCSU researchers use drones to identify Italian ryegrass seedlings in wheat
Italian ryegrass is an herbicide-resistant weed infesting many winter wheat fields in the eastern US, including North Carolina. ...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
How to Get Rid Of Weeds with multiple tactic layers
Dr. Ramon Leon, North Carolina State University Extension and Research Weed Scientist, discusses how to manage winter and summer...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Mid-Atlantic Workshop on Herbicide-Resistance Went Virtual This Year
A two-part workshop on herbicide-resistant weeds was held jointly with University of Maryland, Virginia Tech, and University of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Turning the combine from a weed spreader into a weed predator
Dr. Michael Flessner, Extension Weed Specialist at Virginia Tech, discusses his work with Shockley Farms in Northampton Co....
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Killing weed seeds at harvest: a seed impact mill is now a reality in Virginia
A Redekop Seed Control Unit was installed on a John Deere S680 combine at Shockley Farms, near Cape Charles, VA. Bill Shockley is...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Bayer CropScience and USDA Collaborate To Promote On-The-Farm Integrated Weed Management
USDA’s Agricultural Research Service-sponsored GROW network (www.growiwm.org) is pleased to collaborate with Bayer CropScience...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
A Practical Guide for Integrated Weed Management In Mid-Atlantic Grain Crops
Integrated Weed Management (IWM) means integrating multiple weed control tactics to optimize weed control. The past several...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Tillage, weed control, and the weed seedbank.
Tillage is used primarily to prepare the soil for planting. But tillage can have other impacts including destroying...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
NCSU researchers use drones to identify Italian ryegrass seedlings in wheat
Italian ryegrass is an herbicide-resistant weed infesting many winter wheat fields in the eastern US, including North Carolina. ...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
How to Get Rid Of Weeds with multiple tactic layers
Dr. Ramon Leon, North Carolina State University Extension and Research Weed Scientist, discusses how to manage winter and summer...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Mid-Atlantic Workshop on Herbicide-Resistance Went Virtual This Year
A two-part workshop on herbicide-resistant weeds was held jointly with University of Maryland, Virginia Tech, and University of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Turning the combine from a weed spreader into a weed predator
Dr. Michael Flessner, Extension Weed Specialist at Virginia Tech, discusses his work with Shockley Farms in Northampton Co....
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Killing weed seeds at harvest: a seed impact mill is now a reality in Virginia
A Redekop Seed Control Unit was installed on a John Deere S680 combine at Shockley Farms, near Cape Charles, VA. Bill Shockley is...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Guidance for Building and Installing a Chaff Lining Prototype to a Combine
Based on a JD9500 combine, researchers from the University of Delaware developed a chaff lining prototype. Building and...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
On-farm Chaff Lining Field Results
At harvest, you may discover that weeds have escaped your control efforts and are setting seeds. These escaped weeds can create...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Plan Your Cover Crops For Weed Suppression
When it’s time to plan your cover crops for weed suppression, choosing the right planting timing as well as the right type of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Consider Managing Escaped Weeds Prior to Harvest
About to harvest? The soil seedbank serves as the source of next season’s weed problems. Weed seeds in the soil were deposited...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Influence of Integrated Weed Management Practices on When Soybean Canopy Develops
Diverse and integrated weed management (IWM) strategies based on the practices of crop rotation, competitive crop cultivars,...
Grow News
featured
Why care about metabolic herbicide resistance?
Target site resistance has been the more common form of resistance, while metabolic resistance has been “flying under the...
Grow News
featured
Herbicide Resistance
How to quantify the benefits of cover crops with Steven Mirsky
In a recent episode of the Strip-Till Farmer podcast, associate editor Sarah Hill talked with Steven Mirsky about adopting cover...
Grow News
featured
Bayer CropScience and USDA Collaborate To Promote On-The-Farm Integrated Weed Management
USDA’s Agricultural Research Service-sponsored GROW network (www.growiwm.org) is pleased to collaborate with Bayer CropScience...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
A Practical Guide for Integrated Weed Management In Mid-Atlantic Grain Crops
Integrated Weed Management (IWM) means integrating multiple weed control tactics to optimize weed control. The past several...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Tillage, weed control, and the weed seedbank.
Tillage is used primarily to prepare the soil for planting. But tillage can have other impacts including destroying...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
NCSU researchers use drones to identify Italian ryegrass seedlings in wheat
Italian ryegrass is an herbicide-resistant weed infesting many winter wheat fields in the eastern US, including North Carolina. ...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
How to Get Rid Of Weeds with multiple tactic layers
Dr. Ramon Leon, North Carolina State University Extension and Research Weed Scientist, discusses how to manage winter and summer...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Mid-Atlantic Workshop on Herbicide-Resistance Went Virtual This Year
A two-part workshop on herbicide-resistant weeds was held jointly with University of Maryland, Virginia Tech, and University of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Turning the combine from a weed spreader into a weed predator
Dr. Michael Flessner, Extension Weed Specialist at Virginia Tech, discusses his work with Shockley Farms in Northampton Co....
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Killing weed seeds at harvest: a seed impact mill is now a reality in Virginia
A Redekop Seed Control Unit was installed on a John Deere S680 combine at Shockley Farms, near Cape Charles, VA. Bill Shockley is...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Guidance for Building and Installing a Chaff Lining Prototype to a Combine
Based on a JD9500 combine, researchers from the University of Delaware developed a chaff lining prototype. Building and...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Identifying summer annual grasses in grain crops
Name that grassy weed: GROW team member Dr. Mark VanGessel provides an overview of summer annual grass weed identification....
Herbicide Resistant Weeds
Why care about metabolic herbicide resistance?
Target site resistance has been the more common form of resistance, while metabolic resistance has been “flying under the...
Grow News
featured
Herbicide Resistance
How to Get Rid Of Weeds with multiple tactic layers
Dr. Ramon Leon, North Carolina State University Extension and Research Weed Scientist, discusses how to manage winter and summer...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Mid-Atlantic Workshop on Herbicide-Resistance Went Virtual This Year
A two-part workshop on herbicide-resistant weeds was held jointly with University of Maryland, Virginia Tech, and University of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Turning the combine from a weed spreader into a weed predator
Dr. Michael Flessner, Extension Weed Specialist at Virginia Tech, discusses his work with Shockley Farms in Northampton Co....
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
GROW Members Learn How Australian Farmers Are Managing Weeds
Dr. Steven Mirsky, Research Ecologist at the USDA-ARS, MD, explains what GROW members learned regarding harvest weed seed control...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Would You Like to Suppress Weeds with Cover Crops? See what happens by terminating them at different dates
Cover crops can play a significant role in a multi-tactic approach to weed management. Dr. Norsworthy with the University of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Robotics: A New IWM Tool In The Pipeline
Scientists at the University of Illinois at Urbana-Champaign are working on research funded by the U.S. Department of Agriculture...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Harvest Time: Prevent Weed Seed Dispersal, A SIMPLE PLAN
Farmers are very busy during harvest time. Yet this is the final time to do something about the weeds in the field. If weeds and...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
How to Interpret Herbicide Mode of Action?
Combating herbicide resistance requires combining herbicide modes of action. Re-posted from the Texas Row Crops Newsletter, July...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Cover crop strategy for Weed Suppression=HIGH BIOMASS
Now is the time to think about planning your cover crops if you would like to “add” a different weed management...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Cleaning Weed Seeds from a Combine – Video
Annie Klodd and Jeff Metz, Pennsylvania State University Equipment that enters a field with mature herbicide-resistant weeds will...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Bayer CropScience and USDA Collaborate To Promote On-The-Farm Integrated Weed Management
USDA’s Agricultural Research Service-sponsored GROW network (www.growiwm.org) is pleased to collaborate with Bayer CropScience...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
A Practical Guide for Integrated Weed Management In Mid-Atlantic Grain Crops
Integrated Weed Management (IWM) means integrating multiple weed control tactics to optimize weed control. The past several...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Tillage, weed control, and the weed seedbank.
Tillage is used primarily to prepare the soil for planting. But tillage can have other impacts including destroying...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
NCSU researchers use drones to identify Italian ryegrass seedlings in wheat
Italian ryegrass is an herbicide-resistant weed infesting many winter wheat fields in the eastern US, including North Carolina. ...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
How to Get Rid Of Weeds with multiple tactic layers
Dr. Ramon Leon, North Carolina State University Extension and Research Weed Scientist, discusses how to manage winter and summer...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Mid-Atlantic Workshop on Herbicide-Resistance Went Virtual This Year
A two-part workshop on herbicide-resistant weeds was held jointly with University of Maryland, Virginia Tech, and University of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Turning the combine from a weed spreader into a weed predator
Dr. Michael Flessner, Extension Weed Specialist at Virginia Tech, discusses his work with Shockley Farms in Northampton Co....
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Herbicide Resistant Weeds
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Killing weed seeds at harvest: a seed impact mill is now a reality in Virginia
A Redekop Seed Control Unit was installed on a John Deere S680 combine at Shockley Farms, near Cape Charles, VA. Bill Shockley is...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Guidance for Building and Installing a Chaff Lining Prototype to a Combine
Based on a JD9500 combine, researchers from the University of Delaware developed a chaff lining prototype. Building and...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
On-farm Chaff Lining Field Results
At harvest, you may discover that weeds have escaped your control efforts and are setting seeds. These escaped weeds can create...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Plan Your Cover Crops For Weed Suppression
When it’s time to plan your cover crops for weed suppression, choosing the right planting timing as well as the right type of...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
Consider Managing Escaped Weeds Prior to Harvest
About to harvest? The soil seedbank serves as the source of next season’s weed problems. Weed seeds in the soil were deposited...
Uncategorized
Grow News
Industry News
Harvest Weed Seed Control
Integrated Weed Management Innovations
Mechanical Weed Control
News From Other Sources
Cover Crops
Harvest Weed Seed Management
Prevention
featured
In the Fields
What Are Your Problem Weeds?
Common Lambsquarters
Shattercane
Common milkweed
Hemp dogbane
Horsenettle
Dock (Broadleaf and Curly)
Henbit
Burcucumber
Palmer amaranth
Waterhemp
Giant Ragweed
Italian Ryegrass
