Fungicide Resistance and Management of Frogeye Leaf Spot of Soybean in Nebraska
June 16, 2022
Frogeye leaf spot — which will likely begin appearing in Nebraska soybeans within the next few weeks — can cause significant yield loss, but there are effective management options available.
Corn and Soybean Disease Update: Southern Rust, Frogeye Leaf Spot, and Phytophthora Root and Stem Rot
July 21, 2021
Following identification of southern rust, Phytophthora root and stem rot, and frogeye leaf spot in areas throughout the state, producers are encouraged to scout and be prepared to apply the appropriate fungicide treatments.
Crop Diseases Spreading and Increasing
August 6, 2020
Southern rust continues to spread across eastern Nebraska. To date, southern rust has been reported in 45 Nebraska counties. Gray Leaf Spot, Bacterial Leaf Streak and Frogeye Leaf Spot are increasing as well.
Fungicide Resistance and Management of Frogeye Leaf Spot of Soybean in Nebraska
June 24, 2020
The results from field trials suggest an integrated disease management approach including tillage (when practical), crop rotation, resistant varieties, seed treatment, and timely application of mixed-mode of action fungicides provides the best control.
Soybean Disease Update
March 19, 2020
Plants under stress due to environmental factors, such as extreme temperature and moisture are more susceptible to disease, and many were under stress due to the unique environmental conditions in 2019.
Late Season Soybean Diseases Widespread in Areas of Nebraska
September 13, 2019
Record rainfall during August and continued wet conditions into September are much to blame for the flush of diseases Nebraska’s soybean crop has been experiencing. Here are some of the most common diseases at this time and information on managing them.
Frogeye Leaf Spot in Northeast Nebraska
August 19, 2019
Moderate to severe frogeye leaf spot is being reported on soybean in northeast Nebraska. Pathogen resistance to QoI fungicide is suspected in two fields. If you suspect resistance, contact the author for possible testing.
Frogeye Leaf Spot in Soybeans in Eastern Nebraska
July 27, 2017
Frogeye leaf spot is occurring in Nebraska soybeans, particularly in the eastern third of the state. While some fields have minor levels, some have significant levels and a fungicide treatment may be needed.