The fruits of the crabapple trees are often hosts for a variety of different fungal infections, including apple scab. The bark of the tree is often a host for fungal infections as well, including ...

Minnesota's overly-wet spring is mainly to blame. Apple scab spores reproduce and then re-infect both apples and crabapples ...

Crab apples are also prone to a fungal disease called apple scab, which can cause leaves to turn yellow and fall off. This ...