Sep
22

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…

Sep
9

Brown Stem Rot in DE Soybeans

Brown Stem Rot (BSR) is a fungal disease of soybeans that has never been positively confirmed in the Chesapeake Bay area, although suspect plants have been occasionally observed over the years.  We have not observed significant levels of this disease, but it will…

Aug
24

Stalk Rots in Corn

Stalk rots are one of the most frequent and damaging issues for corn production.  Corn plants produce sugars (carbon) through photosynthesis.  These sugars are used as energy for growth and tissue maintenance.  Extra sugars are stored as free sugars and starch in the…

Jul
27

Fusarium head blight Misted Nursery Data for MD/DE now available!

The results of the 2016 misted nursery are now available.  These data are an essential tool in managing Fusarium head blight and vomitoxin (DON) in the Mid-Atlantic region.  Click the following link to access the report—->  Misted Nursery 2016.

Jul
17

Research on Barley Yellow Dwarf Management in Wheat

Barley Yellow Dwarf (BYD) is a viral disease that can reduce yields in wheat, barley, and oats.  The virus can infect numerous species of grasses including those you may find in ditches, pastures, and lawns.  The virus is transmitted by aphids, which can…

Jul
6

More on Dickeya and Potatoes in Delaware and the Region

As mentioned earlier, Dickeya dianthicola has been detected in Delaware in three fields of ‘Vivaldi’ potatoes this season.  In addition, D. dianthicola has been found  in ‘Reba’, ‘Snowden’ and ‘Norwis’ on 3 farms in New Jersey and 5 farms on Long Island in…

Jul
1

Corn is moving, are you ready?

Corn is starting to take off, and this means that the next set of diseases to keep an eye out will be the foliar diseases.  The most common diseases impacting corn are the residue borne leaf diseases including Grey Leaf Spot and Northern…

Jun
23

Orchardgrass Decline Syndrome

Over the past 2-3 weeks we have had several questions and concerns pertaining to “orchardgrass decline.”  Orchardgrass decline is not something new to the area, and has been something Richard Taylor mentioned observing on several occasions.  Orchardgrass decline is a common syndrome with…

Jun
2

Dickeya Update in Potatoes

Article with the help of Kate Everts, Vegetable Pathologist and Specialist University of Delaware and Maryland   Earlier this year, we alerted all to a “new” bacterial disease of potatoes that is similar to, but more aggressive than black leg. An article on…

May
24

Seedling diseases in corn

Corn planting is underway.  Persistent rain has increased the concern about potential seedling diseases and the need to replant.  Corn seedlings in DE and most of MD can be affected by two main pathogen groups 1) Pythium spp; and 2) Fusarium spp.  Pythium…

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