Apples are susceptible to several serious diseases, including apple scab, cedar-apple rust, fire blight and powdery mildew. These diseases can disfigure the leaves and the fruit, reduce the yield ...

Rust disease will manifest in these tiny, brownish, spore protrusions on the leaves of the apple or pear trees. At that point in the disease life cycle, spraying will help minimize the spread but ...

Infected trees develop circular rings on the leaves and orangish horned growths on the young fruits, which drop the rusty-orange powder onto surfaces below. Ohioans who reported raining infections ...

Rust disease is not typically fatal to plants, including Asian pear, but can inhibit fruit production. Spring rains can make tree galls look rather sinister, as well.

Cedar-apple rust is one of several plant diseases that are all caused by different species of a fungus called gymnosporangium. All of these diseases are referred to as gymnosporangium rust ...

Plant this tree in full sun in Zones 5 to 8, and watch it grow 8 to 10 feet tall. One popular columnar apple tree cultivar, ...

According to the Minnesota Department of Agriculture (MDA), Japanese apple rust, a fungal plant pathogen, has been discovered at several orchards and nurseries in Dakota, Rice and Scott counties.