To prevent tar spot, mostly you just have to hope that the weather this coming spring is not wet enough for the fungus to ...

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 ...

Roses are stunning plants that add a touch of elegance to any garden, but they are also prone to suffering from a fungal ...

Rose black spot is one of the most common and serious diseases to affect roses, some of the most beautiful and alluring plants in the garden. It can appear all year round, remaining for as long as the ...

As the first few leaves begin to turn from green to gold, you may notice a number of aspen trees have black spots on their leaves. Though there can be several reasons for these spots, it is most ...

My black-eyed Susans have roundish spots on the leaves. How can I prevent this? Septoria is one of several fungal leaf spot disease possibilities. It appears as roundish spots with a lighter gray ...

Your description of the problem suggests that you are having an issue with anthracnose. Oaks, sycamores, birches, dogwoods and elms are other commonly infected trees. Anthracnose refers to a group of ...

“I have a couple of maples in my garden that have lots of black spots on the leaves, and some leaves are falling off the tree each week. These are important trees in my garden, and I am worried that ...

Foliar leaf spot diseases and blights of tomato plants are common problems for tomato growers in Delaware and the Mid-Atlantic States. Pathogens survive in plant debris or weed hosts, and are favored ...

Purdue Landscape Report: We have received a few elm tree samples this year with a disease we do not often see, but which is relatively common: black spot of elm. This disease, also called elm ...

The Florida winter golf season is in full swing, and, while the golfers are out there, many courses report that rounds continue to be down. Even with diminished rounds, typical winter season concerns ...