This has been one of the worst years for disease that I can remember as a gardener. Both here at the Garden and throughout the Chicago area, I have noticed many crabapples as well as serviceberries ...

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 ...

Apple trees face several diseases that can affect their productivity, but this shouldn't deter you from planting and enjoying these fruit trees in your own backyard. While diseases from bacteria and ...

Q: I have a white flowering crab that we’ve had for about 20 years. Can you tell me what could possibly be wrong that’s causing the leaf problems, and is there anything I can do? — Christine W. A: We ...

Apple scab, caused by the fungal pathogen Venturia inaequalis, remains one of the most significant challenges to apple production globally. Intensive research has elucidated the complex interplay ...

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. The apples on our Prairie Magic tree have round black spots. At first I thought it was bruising from hail but it's also near the bottom of some fruit, where hail couldn't hit. What is this damage ...

WEST LAFAYETTE, Ind. - 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 ...

If you’re considering adding an apple tree to your home landscape this spring, it’s important to choose an appropriate variety. “The particular variety you plant will affect how many apples you ...