Jun
24

Bacterial Stalk Rot on Sweet Corn

With the recent stretch of hot, dry weather, many producers have begun to irrigate their sweet corn.  Consequently, there have been reports of bacterial stalk rot in some areas where surface water or ponds have been used as water sources.  Bacterial stalk rot,…

Jun
8

Seedling diseases of soybeans

Soybeans grown in Delaware and Maryland can succumb to various diseases early in the growing season.  These diseases typically are favored by conditions that slow soybean emergence and favor pathogen growth, such as wet weather immediately following planting.   There are several pathogens that…

May
28

Hail damage and fungicides in field crops

With recent hail in the region, some growers may be wondering about the use of certain fungicides (specifically some containing strobilurin active ingredients (QoI FRAC group 11) for the mitigation of plant stress or to protect the plant against wounded plant tissues. Some…

May
5

Fungicide Application Window for Fusarium Head Blight Suppression

Heavy rains coupled with high winds made it difficult for growers in Delaware and Maryland to apply fungicides for Fusarium head blight (FHB) suppression.  There has been discussion about waiting until this current weather front passes to make applications.  Fungicide applications for FHB…

Apr
27

Soybean Losses Due to Diseases

Diseases significantly impact soybean production throughout the United States.  In Delaware, diseases such as Soybean Cyst Nematode, Root Knot Nematode, and stem canker can cause significant annual yield losses.  Plant pathologists throughout the United States collect disease loss data each year.  This data…

Apr
19

Time to sign up for Fusarium Head Blight Prediction Updates

Now is the time to ensure that you are signed up for alerts from the Fusarium Head Blight Prediction Center, and you should be checking the map every 2-3 days as plants approach flowering to determine your potential need to apply a fungicide…

Mar
30

Stripe Rust Present in Virginia

Stripe rust has been confirmed in Shirley wheat in the Southern part of the Eastern shore of VA.  Shirley is highly susceptible to stripe rust.  Growers in MD and DE should check their wheat resistance ratings for stripe rust and plan on scouting…

Mar
2

Stripe Rust Present in North Carolina

Stripe rust was recently confirmed in wheat in Robeson County, NC on the boarder with South Carolina.  The disease was found in a wheat trial on a susceptible variety, SS 8404. Stripe rust is an obligate pathogen requiring cool, moist weather to infect…

Feb
23

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…

Feb
9

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…

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