Grumpy helps a reader deal with their diseased pear tree. Plus, the plant of the week. "Do you know what causes some of my pear trees, leaves and branches to turn brown and die? It still produces ...

A. Your pear tree has scab disease — a fungus disease that affects both pears and apples. It can be controlled by spraying a good fungicide (like daconil) three or four times in the spring. Spray when ...