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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Problem weeds in a pasture setting. (Source: Penn State Extension)
Biennial and Perennial Weed Control is Best in the Fall - Articles Articles

Biennial and Perennial Weed Control is Best in the Fall

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

Take advantage of the application window late in the season. More
Palmer amaranth regrowth after crop harvest (Source: University of Delaware Weed Science)
Monitor Palmer Amaranth and Waterhemp After Harvest - News News
Palmer amaranth and waterhemp can still set seed yet this fall even after harvest. Make sure to scout fields and control any escaped plants. More
Burcucumber in field of corn. Image credit: Penn State Weed Science.
Managing Burcucumber and Other Late Season Weeds in Corn and Soybeans - Articles Articles
Late season weeds, such as burcucumber, can cause problems with corn and soybean harvest. Consider some of the harvest aid recommendations below to manage these problems weeds. More
Weeds growing in small grain stubble during late summer (PSU Weed Science, D. Lingenfelter)
Late Weed Control and Burndown Considerations Before Planting Fall Crops - Articles Articles
Suggestions are provided to prevent weed seed production at this time of year to reduce the weed seedbank for next season. More
Photo Credit: Zach Larson
Planting Green Events to be Held in Shippensburg and Bedford - News News
See how planting green can be used to improve soil health and bottom lines on your farm. More
Source: Penn State Extension, D. Lingenfelter
Herbicide Drift and Sensitive Plants: What to do if Drift is Suspected - Articles Articles
If herbicide drift is suspected on sensitive plants, certain procedures must be followed to properly investigate and document the situation. Read below for more details. More
Source: Penn State Extension, D. Lingenfelter
Xtend® Soybean System and Dicamba Applied Postemergence - Articles Articles
Best management practices to reduce chances of dicamba drift in Xtend soybeans are discussed. More
Marestail Image Credit: Dwight Lingenfelter
Mid-season Weed Control Issues 2018 - News News
As we proceed through the growing season, there are a few issues surrounding weed control and herbicide use. Below are some items to consider. More
Low lying fog in fields may indicate a temperature inversion. (Photo credit: Dwight Lingenfelter
Auxin Herbicide Drift and Temperature Inversions - Articles Articles
Temperature inversions can cause dicamba and 2,4-D to move great distances after application. Learn about the details below. More
Multiflora rose bush. Photo credit: Penn State Extension
Multiflora Rose Problems in Pastures? Control it Now! - Articles Articles
It is the right time to be scouting and managing multiflora rose in your pasture. More
Weed Life Cycles
Weed Life Cycles - Videos Videos

Weed Life Cycles

Bill Riden

7:46

Learn the life cycle of weeds. More
Emerged no-till soybeans (D. Lingenfelter, Penn State Weed Science)
No-till Soybeans Emerged Without a Burndown or Residual? - Articles Articles
If you did not have an opportunity to spray your no-till soybean fields before planting, read about some weed control options. More
Early season corn. (Photo: D. Lingenfelter)
Residual Corn Herbicides in Post Applications - News News
Due to the unusual weather, residual herbicides applied post may need to be used to control weeds in emerging corn crops. More
Photo Credit: Zachary Larson, Penn State Extension
Planting Green Impacts on Corn Emergence - Articles Articles
Corn planted into standing un-rolled cover may show reduced yields due to lower populations and greater plant height variability. More
Smartphones and tablets can place volumes of agronomic data in your pocket.
Scout with Confidence with These Smartphone Apps - Articles Articles
There are a variety of smartphone and tablet apps that can help to identify pests, select crop protection products or view pesticide labels, putting important data at your fingertips. More
There are a handful of smartphone and tablet applications that can help navigate through some of the challenges of spraying. Photo Credit: Zachary Larson
Take the Guesswork Out of Spraying With These Apps - Articles Articles
Use these smartphone and tablet apps to help in sprayer calibration, nozzle selection, tank mixing and product selection. More
Farming for Success
Farming for Success - Workshops Workshops
Join us for an agronomic field day for farmers, industry representatives, and other agricultural professionals. More
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
Dairy, Livestock (Cattle Congress), and Crops Compliance Conference
Dairy, Livestock (Cattle Congress), and Crops Compliance Conference - Workshops Workshops
Get production updates from Penn State experts in dairy, livestock, and crops, as well as receive your compliance credits in pest and nutrient management. More
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