Pests and Diseases

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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Soybean field (D. Lingenfelter, Penn State Extension)
Xtend Soybean: Dicamba Products Re-registered - News News
Dicamba products granted registration extension for use on Xtend soybean. Read below of additional details. More
Upcoming Event: Soybean Production Workshops
Upcoming Event: Soybean Production Workshops - News News
These day-long workshops teach soybean producers new integrated pest and cultural management practices covering the entire growing season, from planting to harvest. More
John Wallace, Penn State Weed Science
John Wallace, Weed Management Extension Specialist - News News
Introducing Penn State’s new extension weed specialist More
Mary Burrows, Montana State University, Bugwood.org
Fall Weed Control in Wheat and Barley - Articles Articles

Fall Weed Control in Wheat and Barley

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

As fall weeds compete with wheat and barley establishment, below are some herbicide options to consider. More
Photo by Alyssa Collins
Dealing with Moldy Corn - News News

Dealing with Moldy Corn

10/10/2018

Concerns about mold in corn? Not all mold feeds have mycotoxins and can still be used with precaution. More
Image Credit: Alyssa Collins
Managing the Damage: Understanding Soybean Harvest Quality - News News
As the harvest begins, you may be surprised by the amount of discolored and moldy beans you see. Find out why, and what you can do about it. More
Diplodia ear rot. Photo Credit: Alyssa Collins
Corn Ear Rots and Mycotoxins - Articles Articles

Corn Ear Rots and Mycotoxins

Adriana Murillo-Williams, Alyssa Collins, Ph.D., Paul D. Esker

There are many pathogens that cause ear rots. Identify which ones are associated with mycotoxin contamination! More
Figure 1: Western bean cutworm caterpillar, showing the distinctive longitudinal lines in its collar (or pronotum) behind its head. (Image Credit: Eric Bohnenblust, Penn State)
Caterpillars in Corn: Earworm, Western Bean Cutworm or Corn Borer? - Articles Articles
The end of the summer is a good time to scout for caterpillar damage in corn. What is present will tell you if you have pests that need to be managed next year. More
Figure 1. Wheat seed and young seedlings affected by Fusarium graminearum (white arrows). (Photo credit: Brandon Wilt, PSU-PPEM.)
Wheat and Barley Diseases: What is in Your Seed? - Articles Articles

Wheat and Barley Diseases: What is in Your Seed?

Adriana Murillo-Williams, Alyssa Collins, Ph.D., Paul D. Esker

Seeds can serve as the vehicle for unwanted plant pathogens and weeds. Avoid the risks! 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
Brown marmorated stink bugs on soybeans in Clinton County. Most soybean fields in Pennsylvania are in growth stage R6 or later and so are past the point when insects, like stink bugs, or diseases will reduce yield. Image Credit: Greg Roth
Soybean Sentinel Plot Program September 11, 2018 - News News
With soybean maturity approaching in most fields, insects and diseases are becoming less relevant, but most pest populations remain low. More
Symptoms of white mold as seen in 2018 in a field in Centre County. Image credit: P. Esker
Scouting for White Mold in Soybean - News News
White mold has been found in several soybean production fields in central and northern Pennsylvania. How can we assess the potential impact? More
2018 Wheat Planting Considerations
2018 Wheat Planting Considerations - News News
Much of our wheat yield potential is a function of decisions that are made in the fall. Take time now to make plans for a successful wheat planting season this year. More
Life stages of the Spotted Lanternfly. Credit: Penn State Extension
Spotted Lanternfly is on the Move - News News
Spotted Lanternflies are now in the adult life stage and are much more mobile. More
Funding is Available to Develop Soil Conservation and Nutrient Management Plans
Funding is Available to Develop Soil Conservation and Nutrient Management Plans - News News
Funding is now available to farmers to have soil conservation and nutrient management plans written. More
Mature soybean field in Centre County. Image Credit: Adriana Murillo-Williams
Soybean Sentinel Plot Report for September 4, 2018 - News News
With soybean maturity approaching in most fields, insects and diseases are becoming less relevant, but most pest populations remain low. More
Corn earworm (CEW) and feeding on corn ear tip. Image credit: Rachel Milliron.
Identifying Corn Earworm - News News

Identifying Corn Earworm

09/05/2018

Finding corn ears with feeding on the ear tip? 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
Bean leaf beetle adult, showing feeding damage. Photo credit: Whitney Cranshaw, Colorado State University, Bugwood.org (images used under Creative Commons Attribution 3.0 License).
Mexican Bean Beetle Causing Trouble? - News News
Reports from Chester County indicate there is a strong population of Mexican bean beetles defoliating soybeans. More
Most of the soybeans in our report are in R5 or later, so we are getting to the point of the season when insects and pathogen populations are unlikely to influence yield any more. Image: Adriana Murillo-Williams
Soybean Sentinel Plot Report, August 28, 2018 - News News
With the extremely wet weather, insect pests in soybeans appear to have been knocked back a bit. Diseases remain low, but this could change with more moisture. 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
A soybean plant with Sudden Death Syndrome
Soybean Sudden Death and Brown Stem Rot: How to Tell the Difference - Articles Articles

Soybean Sudden Death and Brown Stem Rot: How to Tell the Difference

Alyssa Collins, Ph.D., Adriana Murillo-Williams

These two nasty soybean diseases can be hard to tell apart. Learn what to look for so you can know your enemy. More
A spined soldier bug eating a lady beetle larva. Predators are key to keep soybean populations from getting too high. Predator-on-predator predation is bound to happen when aphid populations grow & predators swarm in. Adriana Murillo-Williams
Soybean Sentinel Plot Report-7 August 2018 - News News
With the extremely wet weather, insect pests in soybeans appear to have been knocked back a bit. Diseases remain low, but this could change with more moisture. More
A maturing soybean stem affected by white mold. Image credit: A. Collins
Be on the Lookout for White Mold - News News
Current weather conditions make it a priority to focus on key diseases in soybean. More
Mid-ear cutworm injury resulting in subsequent ear mold infection by several pathogens. Image credit: G. Roth
Avoiding Mycotoxins in Grain Corn and Silage - Articles Articles

Avoiding Mycotoxins in Grain Corn and Silage

Alyssa Collins, Ph.D., Paul D. Esker, Adriana Murillo-Williams

Toxins caused by fungi are a real concern in grain corn and silage. Is there anything we can do about it? More
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