Q. I know that flowering crabs are subject to injury from fire blight. My crab is resistant to apple scab disease, but it is looking pretty sick now having lost maybe 1/3rd of its leaves, so I am ...

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.

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 ...

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 ...

Apple scab has been a serious disease problem on crab apple and apple trees the past few seasons, and the current cool, wet spring weather is ideal for this disease to develop. While it is difficult ...

Our often-wet springs bring with them the perfect conditions for many plant diseases. While moist weather can create conditions for diseases on many plants, sick trees in the landscape tend to draw ...