Frogeye leaf spot (FLS), caused by the fungus Cercospora sojina, has become a disease of growing importance in Nebraska (Figure 1). While yield loss to the disease is often minor, when conditions are optimal, it may hasten maturity by causing premature defoliation.

Jan 13, 2019 · Frogeye leaf spot, caused by the fungus Cerospora sojina, is a common soybean foliar disease in the South. It’s a more recent disease in Midwestern states and has spread into the upper Midwest as well.

Frogeye leaf spot is a common problem in the southern and central United States and can occur in some areas of the upper Midwest. It has been reported as far north as southern Wisconsin. The disease may cause severe defoliation during warm, humid weather.

Dec 1, 2016 · Frogeye leaf spot of soybean is caused by the fungus Cercospora sojina. The disease occurs across the United States and in Ontario, Canada. This publication describes the symptoms of frogeye leaf spot and conditions favorable for the disease.

Aug 2, 2023 · Frogeye leaf spot (FLS) is caused by the fungus Cercospora sojina, which survives on crop residue left on the soil surface. This disease occurs across the United States as well as in Ontario, Canada. 1,2 The risk of FLS is greatest when soybeans are grown continuously in the same field, especially in reduced-tillage situations.

Mar 19, 2019 · Frogeye leaf spot is caused by the fungus Cercospora sojina. The disease occurs across the United States and in Ontario, Canada. Frogeye leaf spot can cause significant yield loss when widespread within a field. Leaf lesions are small, irregular to circular in shape, and gray with reddish-brown borders.

Frogeye Leaf Spot (FLS) is the most important foliar disease of soybean, especially in the southern U.S. The disease has been occurring more frequently in northern soybean-growing …

Apr 3, 2022 · Frogeye leaf spot is a common soybean disease that many soybean growers face annually. The disease is caused by the fungal pathogen Cercospora sojina and can cause sever yield loss and poor-quality grain.

Frogeye leaf spot of soybean is caused by the fungus Cercospora sojina. The disease occurs across the United States and in Ontario, Canada. This publication describes the symptoms of frogeye leaf spot and conditions favor-able for the disease.

Leaf symptoms of frogeye leaf spot. brown and have reddish purple margins (Figure 1). These leaf spots are diag-nostic symptoms but are often mistaken for herbicide drift or other leaf diseases. When infections are numer-ous, spots coalesce to cre-ate irregular patterns. Although less frequent, lesions also develop on stems and pods.