New Research on Endophytes for Suppressing Fusarium head blight

Endophyes are microbes that exist within plant tissues.  These presence of these organisms are often not noticed because the organisms do not present any outward symptoms.  They can be found locally in specific tissues, or spread throughout tissues.  Some endophytes have been identified…


Nematode Assay Service open through November 13

The UD Nematode Assay Service will be open through November 13th, 2015.  After this time the assay service will be closed until the new year.  Below is the link to the service.  Please pay particular attention to sample submission guidelines.  


The Mystery of Green Stem Disorder in Soybeans

Green stem disorder has been observed in many fields throughout Delaware and Maryland this season.  This disorder is characterized by plants that remain green in parts of a field, thereby preventing a timely harvest.  Sometimes green stem occurs in single plants, other times…


Correlation, Causation, and Scouting

Often, late season issues result in the submission of senesced, dead, or decomposing samples to extension plant pathologists or diagnostic clinics in the hope that an answer to a potential issue can be derived from such samples.  Unfortunately determining the potential cause of…


Weeds as Alternative Hosts for Goss’ Wilt

Goss’ Wilt is an emerging issue in corn production.  Although the bacterial disease has yet to move into our area, it has spread throughout corn production areas in the Midwest and parts of Canada.  Currently, rotation and tillage are the only means of…


Factsheet on Stagonospora Glume Blotch now Available!

Growers in the mid-Atlantic often encounter issues with Stagonospora leaf and glume blotch.  A new factsheet is available that discusses this disease, how it works, and what you can do to minimize it’s impacts. To access the factsheet click this link: Stagonospora leaf…


Soybean Cyst Nematode- Know your numbers

Soybean Cyst Nematode (SCN) is our most important and yield limiting “pathogen” in soybeans.  Now is the time to be checking your fields to have SCN egg numbers monitored.  Need to know more about SCN and how to sample?  Clink here for a…


Fungicides for ear rot

This season I have had several questions on  controlling ear rots in corn.  Ear rots are caused by several different fungal species.  The most common in our area are Diplodia, Gibberella, and Fusarium ear rots.  Others, such as Aspergillus, and Penicillium ear rots…


New fungicide with excellent Oomycete control available soon

Syngenta announced today that it has received EPA approval for Orondis, a new high-performance fungicide that has been shown to be very effective in suppressing several important vegetable oomycete diseases. First sales are expected next season. Data from vegetable trials in our area…


Tar spot on Corn in Indiana

Well folks, we have a new corn disease in the USA.  Tar spot, which is typically encountered in tropical areas, had been confirmed in Indiana.  While we have not seen this in our area, keep an eye out for it in the future.…


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