New Factsheet of Barley Yellow Dwarf and Aphid Management in DE Available

Barley yellow dwarf is the most prevalent virus encountered in small grain production.  Last year, we composed a new factsheet on this virus and how to manage it and its vector, the aphid.  The factsheet can be found under the small grains tab…


Fungicide Profitability in Mid-Atlantic Wheat

A commonly asked question posed by many growers is, “Does it pay to apply a fungicide to my wheat?”  This question is particularly important with recent reductions in commodity prices.  Fungicide applications are useful in protecting wheat from fungal diseases affecting the foliage…


Prothioconazole vs Thiophanate-Methyl for Fusarium wilt control in watermelon

In a past article, I discussed recent research that examined drip application of prothioconazole and thiophanate-methyl for suppressing Fusarium wilt, caused by Fusarium oxysporium f.sp. niveum (FON). Ultimately, this research indicates that application of these fungicides can suppress FON, although they are not …


What is CRISPR?

You may be hearing a lot about a new molecular technology called CRISPR in the popular press.  This tool offers many opportunities, from curing debilitating diseases, to improving disease resistance of crops.  To learn more about CRISPR and it’s potential for disease management…


2017 Nematode Assay Service Note

The University of Delaware will not offer an open nematode assay service in 2017.  Growers and other professionals with urgent issues can contact their local extension agriculture agent or Dr. Nathan Kleczewski at 302-300-6962 or nkleczew@udel.edu for assistance with nematode identification, enumeration, and…


2016 Soybean Vein Necrosis Disease survey and Thrips Data now Available

We have been studying Soybean Vein Necrosis Disease in the Delaware/Maryland region since 2013 to better understand the disease and if it may have an impact on our soybean production.  The disease is caused by a virus, and moved from plant to plant…


Research on Information Exchange

Information exchange is important for dealing with plant disease issues.  When a disease related issue occurs, it is important for those affected to understand the issue and have access to solutions from reputable sources.  In addition, exchange of knowledge among researchers is crucial…


Help us gather information on Fusarium Head Blight

The University of Maryland and University of Delaware, through funding through the USWBSI, MD Grain Producers, and MD Commodity Board, run a misted nursery to screen commercial varieties of wheat for Fusarium Head Blight resistance and tolerance to vomitoxin (DON) accumulation.  We would…


Bacterial Leaf Streak- Something to Look For in 2017 Corn

Bacterial leaf streak (BLS) is a new bacterial disease affecting corn in the United States.  The disease has been present in Nebraska corn fields at detectable levels since 2014, but was only recently positively identified.  The disease has been detected in nine states…


Best Management Practices for Dickeya in 2017 Potatoes

Avoid purchasing varieties (with lot numbers) which are known to have Dickeya from any source. Do not purchase seed from those growers/brokers with a known history of Dickeya. Do not rely on Blackleg tolerance levels reported on the North American Seed Health Certificates…


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