There have been several cases of yellowing wheat this year and most have been attributed to nutrient deficiencies and/or the cold wet weather experienced in May.
Samples of field peas with moderate to severe symptoms of bacterial blight have been received by the NDSU Plant Pathology Department.
On Monday, we received a wheat leaf sample collected by Dr. Janet Knodel and Sam Haugen (Plant Pathology graduate student) that was confirmed as stripe rust.
Soybeans are sensitive to multiple pathogens (see previous article), but I am concerned about Pythium infections in the earliest planted soybeans. Pythium is favored by cool soils, generally less than 60o F and lots of water. Soybeans that were planted three weeks ago had lots of both.
Fields that were planted before the heavy rains began and the cool temperatures set in a couple weeks ago are at high risk for root rot development.
After several days of precipitation and with cool weather in the forecast, this is a good time to start scouting winter wheat and spring wheat for fungal leaf spots.
Researchers at North Dakota State University and the University of Minnesota have demonstrated that a wide range of plant population with uniformly spaced plants resulted in high recoverable sucrose, but plant populations of 175 to 200 plants per 100 foot of 22-inch wide rows consistently resulted in the maximum recoverable sucrose per acre. It is important that the plants be evenly spaced within the rows.
During the last two growing seasons, Soybean Cyst Nematode (SCN) has been confirmed in seven additional North Dakota counties.
The Plant Pathology Department at North Dakota State University will again be providing the potato Blightline service at no charge to the potato industry of North Dakota and western Minnesota in 2015.
Seed treatments are very important in wheat production and the decision to use one can revolve around several factors such as crop rotation, seed source, planting conditions, history of pest problems, and economics.
Topics Covered include: Sugar production from sugarcane and sugarbeet U.S. sugarbeet acreage Minnesota and North Dakota What are some basic practices growers can follow? What is the status of sugarbeet planting? Practice safety
There were serious incidences of field pea root rots in the north central and the north western regions of North Dakota last year.
Almost all NDAWN locations have had continuous days of weather favorable for tan spot infection in the past week