Weed Identification and Control

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Multiflora Rose Management in Grass Pastures (An Integrated Approach)
Multiflora Rose Management in Grass Pastures (An Integrated Approach) - Articles Articles

Multiflora Rose Management in Grass Pastures (An Integrated Approach)

William S. Curran, Ph.D., Dwight Lingenfelter

The weed multiflora rose (Rosa multiflora, Thunb.) is an increasing problem in Pennsylvania pastures and noncropland. It thrives on idle land, fencerows, and minimally maintained, hilly pastures. More
Integrated Approach- Management of Eastern Black Nightshade
Integrated Approach- Management of Eastern Black Nightshade - Articles Articles

Integrated Approach- Management of Eastern Black Nightshade

Dwight Lingenfelter, William S. Curran, Ph.D.

Eastern black nightshade (Solanum ptycanthum Dun.), an annual broadleaf plant, is an increasing weed problem in northeastern field crop production. More
Images 1. Common ragweed. DiTomaso, J. UC-Davis, Bugwood.org.
Keep an Eye Out for the Ragweeds - Articles Articles

Keep an Eye Out for the Ragweeds

William S. Curran, Ph.D., Dwight Lingenfelter

Members of the Aster family, particularly the ragweeds, are never good neighbors and it’s key to understand what your post treatment options are. More
Invasive Pigweeds: Palmer Amaranth and Waterhemp
Invasive Pigweeds: Palmer Amaranth and Waterhemp - Articles Articles

Invasive Pigweeds: Palmer Amaranth and Waterhemp

William S. Curran, Ph.D., Annie Klodd

Palmer amaranth is a species of pigweed that was recently introduced into PA and has been positively identified on more than 30 sites across the state. More
Pigweed Seedling Identification
Pigweed Seedling Identification - Articles Articles

Pigweed Seedling Identification

William S. Curran, Ph.D., Dwight Lingenfelter

This is the time of year to try to correctly identify and manage problematic pigweeds in your fields. More
Six of One, Half Dozen of the Other: the Future of Weed Management?
Six of One, Half Dozen of the Other: the Future of Weed Management? - Articles Articles
Whether you grow cotton in the Delta of Mississippi, soybean in IN, or corn in PA, chances are good that there are herbicide resistant weeds near or on your farm. More
Persistence of Herbicides in Soil
Persistence of Herbicides in Soil - Articles Articles

Persistence of Herbicides in Soil

William S. Curran, Ph.D.

While it is desirable for the chemicals to control weeds during the season of application, it is not desirable for them to persist and affect subsequent crop growth. More
Managing Weeds in CREP Grasslands
Managing Weeds in CREP Grasslands - Articles Articles

Managing Weeds in CREP Grasslands

Dwight Lingenfelter, William S. Curran, Ph.D.

It's time to think about managing those weedy plants in CREP before they set seed. More
Weed Management in Organic Cropping Systems
Weed Management in Organic Cropping Systems - Articles Articles
When managing weeds in organic systems, producers use many of the same techniques used in conventional systems, but they rely much more on nonchemical control strategies. More
Weed Management in CREP Grasslands
Weed Management in CREP Grasslands - Articles Articles

Weed Management in CREP Grasslands

Dwight Lingenfelter, William S. Curran, Ph.D.

This publication will discuss weed management options for Conservation Reserve Enhancement Program (CREP) grassland acres enrolled in Conservation Practices CP1, CP2, and CP10. More
Ideas On Herbicide Resistance Shared At Regional Meeting Ideas On Herbicide Resistance Shared At Regional Meeting - News
A productive discussion was had in Lancaster on the challenges, successes, and needs going forward for managing herbicide resistant weeds in the mid-Atlantic. More
Quackgrass Management: An Integrated Approach
Quackgrass Management: An Integrated Approach - Articles Articles

Quackgrass Management: An Integrated Approach

William S. Curran, Ph.D., Dwight Lingenfelter

Quackgrass is a widespread, persistent, cool-season, grassy weed found in Pennsylvania row and forage crops. This competitive perennial grass can reduce crop yields up to 95 percent. More
New Online Resource for Weed Management Assistance New Online Resource for Weed Management Assistance - News
The Integrated Weed Management Resource Center is a new online tool to ask questions and find weed management info and timely news articles. More
Photo of horseweed taken in early November. Curran, Penn State
How Late Can I Control Weeds in the Fall? - Articles Articles

How Late Can I Control Weeds in the Fall?

Dwight Lingenfelter, William S. Curran, Ph.D.

How late can an herbicide application be made in the fall and still be effective? We provide comments about controlling perennials and winter annual weeds. More
Lambsquarters (Chenopodium album)
Management of Triazine-Resistant Pigweed and Lambsquarters - Articles Articles
Since the discovery of triazine resistance in the United States occurred in the late 1960s, more than 50 species of weeds have developed weed resistance problems. More
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