Some of us are starting to notice yellow-orange spots on the leaves of their ornamental or fruiting pear trees. These spots begin in the late spring on the upper surface of leaves, approximately 1/8 ...

During the summer, many of us notice yellow-orange spots on the leaves of their ornamental pear trees. These spots begin in the late spring on the upper surface of leaves, approximately 1/8- to ...

DEAR JESSICA: I have a question about your column of Aug. 19, where you mention that the fungus that causes rust disease can be cured by getting rid of junipers, which host the fungus. I have two ...

Dear Neil: What would be causing the slow death of our dwarf gardenias? These green leaves on the left and yellowed leaves on the right are both on the same plant. We have two other plants on either ...

Cedar apple rust is a fungal pathogen that gets its name from a life cycle infecting cedar trees, then plants in the Rose family and back again. This year, spring weather conditions promoted the ...

After 20 years, suddenly our ornamental pear trees (not Bradford but “Aristocrat”) are dropping leaves with red and black spots. What can we do? This is a new rust disease called pear trellis rust.

The sun is visiting now and then, colorful blooms are everywhere and we're feeling the urge to get outdoors. It's gardening time. Got a question? Get answers from Ask an Expert, an online question-and ...

The orange rust on pear leaves won’t hurt the tree. The fruit of the serviceberry is popular with birds, and humans can eat it, too. It’s excellent in jams, jellies and pies. Swamp milkweed attracts ...

DEAR JESSICA: We have a beautiful weeping cherry on our front lawn, but its leaves are dropping, brown and curled. My husband found some pinkish/reddish “gunk” on a part of the tree, scraped it off ...