Weed Management

Recommendations for managing weeds, insects, and disease pests in agronomic crops such as corn, grain, soybean, small grains, and forages. Tips on dealing with bacteria, molds, fungal diseases and rot.

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A field with and without a soybean burndown herbicide program. Photo: Dwight Lingenfelter, Penn State Weed Science
Dicamba Products and Xtend Soybeans - News News
Not all dicamba-containing products are RUPs and not all can be applied in a burndown application prior to planting Xtend soybeans. More
Field with a mixed population of herbicide resistant and susceptible marestail. Photo: Bryan Young, Purdue Weed Science
Managing Weeds for the Future - Articles Articles

Managing Weeds for the Future

Dwight Lingenfelter

Weed management is primarily dictated by herbicide resistance. Mechanisms of resistance and ways to optimize herbicide use and include other management options are discussed. From the 2018 Corn and Soybean Congress. More
A weedy alfalfa field. Photo: Penn State Weed Science
Spring Weed Control in Alfalfa - Articles Articles

Spring Weed Control in Alfalfa

Dwight Lingenfelter

As spring approaches, forage weeds can become a problem. Certain herbicides can be applied but timing is critical. See information below of more details. More
Burcucumber in Corn Field Photo: Penn State Weed Science
Burcucumber Management in Corn and Soybean - Articles Articles
Burcucumber continues to plague some corn and soybean fields in the region. Consider some of the recommendations below to manage this problem weed. More
Dicamba Recordkeeping Forms Photo Credit: Dave Wilson
Recordkeeping for Dicamba Products - Articles Articles
Are you planning on using a Dicamba product this year? Be prepared to get training and keep the required records! More
Photo credit: Creative Commons CC0; Pixabay.com
Questions About Your Pesticide Points? - Articles Articles
Is your pesticide license due to expire on March 31? Not sure how many points you need? Do you need to find upcoming meetings? Here’s a simple way to check! More
Photo credit: Dwane Miller
Outstanding Lineup Slated for the 2018 PA Forage Conferences - Articles Articles
Visit with industry professionals and farmers and enjoy the day listening and learning about educational topics pertaining to forage production! More
2017 Penn State Agronomy Herbicide Trial Report
2017 Penn State Agronomy Herbicide Trial Report - Articles Articles
This weed field trials report is a summary of the 2017 herbicide trials conducted in corn soybean, and other field crops by the Department of Plant Science at Penn State. More
Mature marestail plant in Rock Springs, PA
Marestail (Horseweed) Management - Articles Articles

Marestail (Horseweed) Management

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

Effective management of marestail (horseweed) involves a combination of herbicide, mechanical, and cultural tactics. More
Photo credit: Bill Curran
Annual Weed Control in Winter Cereals - News News
Scout your wheat and barley fields this fall to assess the need for an herbicide application. More
Upcoming Events for April
Upcoming Events for April - News News

Upcoming Events for April

09/20/2017

Registration for Penn State Extension Agronomic Field Diagnostic Clinic opening soon! More
Photo credit: Rachel Milliron
Weed Control after Silage Harvest or in Fallow Settings - News News
Control of weeds after silage harvest is possible but it depends on the weed species, timing, and condition after harvest. More
Waterhemp in soybeans
2016 Penn State Agronomy Herbicide Trial Report - Articles Articles
This weed field trials report is a summary of the 2016 herbicide trials conducted in corn soybean, and other field crops by the Department of Plant Science at Penn State. More
Horseweed in soybean
2015 Penn State Agronomy Herbicide Trial Report - Articles Articles
This weed field trials report is a summary of the 2015 herbicide trials conducted in corn soybean, and other field crops by the Department of Plant Science at Penn State. More
Seedling horseweed/maretail which often requires more than just glyphosate. Photo credit D. Lingenfelter.
Including 2,4-D in the burndown - News News

Including 2,4-D in the burndown

09/06/2017

Can you include 2,4-D in your burndown program this fall? Know the label guidelines before you make that application. More
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