In late summer or fall, Cercospora fungus causes brown spots on hydrangea leaves. The plant looks unsightly but usually ...

Gray leaf spot of corn is caused by the fungus Cercospora zeae-maydis. The fungus is now widespread in Indiana and the Eastern Corn Belt (Midwest). Weather strongly influences development of gray leaf ...

Frogeye leaf spot (FLS), caused by Cercospora sojina, is a serious disease affecting soybeans and can cause more than 30% yield loss if not properly managed. First reported in the United States in ...

Q. The magnolia in our backyard doesn’t seem to be thriving. The branches and leaves aren’t as thick and lush as they were a year or so ago. And when I looked closely I realized there are spots on ...

OUT DAMN SPOTS: Many crape myrtles are dropping yellow or red leaves with spots on them. This is a fungal disease called Cercospora leaf spot. Although it is alarming to see, this disease is not ...

Asian leafhopper insect is invading cotton crops, spreading across 40 counties and now threatening regions of the U.S.

A flowering dogwood tree blooms in a yard. - Mark C Stevens/Getty Images Dogwoods make a stunning addition to any garden. The compact trees are prized for their delicate white blossoms in the spring ...

Understanding Septoria Leaf Spot. Do you have brown or black spots on your tomato leaves? It could be septoria leaf spot.

Question: I planted several mountain laurels last year, and I noticed that over the winter they have developed black spots with a white center on all of the leaves. They are located on the edge of my ...

Gray leaf spot, caused by the fungus Cercospora zeae maydis is the most significant yield-limiting disease of corn worldwide [1]. The disease was first reported in Illinois in 1924, and has increased ...

Dogwoods make a stunning addition to any garden. The compact trees are prized for their delicate white blossoms in the spring and bright red berries in the fall. One hidden downside to planting a ...