Q: Can you tell me what is wrong with my crab apple tree, and what I should do about it? The leaves started turning yellow earlier this summer and now there are hardly any leaves left. It looks awful.

There have been reports that 2024 has been a bad year for apple scab in both fresh-eating apples and crab apples. Apple scab infections on fruit start off olive-green and turn into a rough, cork-like ...

The wet weather and humidity has led to a very noticeable outbreak of apple scab, a fungal disease, on apple and crabapple trees in the area. Apple scab can result in severe defoliation on apple and ...

ST PAUL, Minn. — In your own yard or driving around looking at someone else's trees, you might have noticed that crabapples look terrible this year. Absolutely terrible. The culprit is a fungal ...

It is nearly time to begin spraying crab apples that are susceptible to apple scab (typically this disease affects older varieties of crab apples). If your tree's leaves become covered with black ...

Apple scab is one of the most common apple and crabapple diseases that gardeners have to deal with. Apple scab is caused by the fungus Venturia inaequalis. It will attack any varieties of crabapple ...

There are hundreds of choices when picking a crabapple tree from the nursery, but a Purdue University expert says only a handful are resistant to a widespread fungus or other serious diseases. After ...

In the past week or so, crab-apple trees have stolen the spring flower show among our blooming landscape plants. These beautiful trees produce abundant flowers for up to four weeks each spring, with ...

The problem with many plant diseases is once you notice them it’s often too late. That’s especially true with our trees. We often don’t gaze at the canopies of our trees looking for problems. The ...

My crab apples look terrible this year and have lost a lot of their leaves. The remaining leaves have spots on them. What can I do to help my trees? — Tom Halvorson, Barrington Many crab apples in the ...