Scientists have uncovered an unexpected microbial relationship that could help explain differences in the severity of a major ...

Collaboration between the UCO's Agronomy and Genetics departments was key to sequencing the genome of this pathogen, which is ...

Every maple tree in my yard has spots, all the way to the top. Are they doomed? Can I do anything? And my buckeye tree leaves are already turning brown, like it was autumn. What to do? -- Dorene Davis ...

Question: I planted a shiny leaf ligustrum last year that has developed small, circular yellow spots with a brown center on some of the leaves. People have told me this is a fungus. What should I do?

Q: I get some kind of leaf disease on my hydrangea bushes every year. I have about 15 of them in various garden locations. They start out fine but end up covered with these spots by mid-season. I ...

If your lilacs are looking rough right now, it is probably lilac leaf spot, a relatively new fungal disease in Minnesota. Symptoms typically appear from July to September. Leaves turn yellow, then ...

Q. My maple tree has black spots on the leaves that just appeared recently. Should I be concerned about this? What should I do? A. Sometimes wet conditions earlier in the season can cause problems ...

There are two common types of leaf diseases on English ivy found in Illinois. One is caused by fungi and the other is caused by a bacterium. Both diseases can cause defoliation if severe, but your ivy ...

Add Yahoo as a preferred source to see more of our stories on Google. A picture of leaves with leaf spot disease. - Boyloso/Shutterstock Have you noticed discolored spots or lesions on the leaves of ...

My witch hazel started getting brown spots all over the leaves. What is this and what should I do? A: That looks and sounds like a fungal disease, cleverly called "leaf spot" because that's the most ...

Dear Neil: My redtip photinias have brown spots on their leaves and it appears that they are dying. The local store told me it was a fungus and that there was nothing I could do to stop it. It’s all ...

Q • What are the black spots appearing on my hydrangea leaves? Write to the Missouri Botanical Garden's Center for Home Gardening at plantinformation@mobot.org or the Horticulture Answer Service, 4344 ...