Ask a Master Gardener: Pear tree disease remedies and what's still worth planting April 23, 2017 by James Quinn/Regional Horticulture Specialist | Updated April 19, 2017 at 2:44 a.m.

Asian pear rust is a fungal disease whose summer hosts include Bradford pears and other pear trees. Asian pear rust is a little more difficult to spot on cedars and junipers, but Cedar Apple Rust ...

Pear rust is an extremely common pear problem that affects both ornamental and fruiting pear trees. The disease is called cedar-hawthorn rust and often causes only aesthetic damage in the form of ...

This rust fungus can be passed back and forth between pears and junipers. ... Ask an expert: Options are few for pear tree with trellis rust. Published: Nov. 07, 2020, 8:00 a.m.

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.

Pear rust has been prevalent on Long Island since about 2009, but it escalated this year due to heavy rains, which created the perfect conditions for the fungus to thrive and multiply, Daughtrey said.

Pear tree leaves in front of Somerville's Rockville Centre home are dropping by the hundreds -- the bark is covered with a greenish-yellow fungus. "It's sad, it's sad," he said.

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.

Pear leaves are infected with cedar-hawthorn rust rather than cedar-apple rust. Though cedar-hawthorn rust is different than cedar-apple rust, both diseases work the same and the control is ...

DEAR JESSICA: My pear tree has rust disease, and I can’t make up my mind about whether I should take the tree down or rake up diseased leaves all summer.

The disease - called rust - is running rampant this season, especially on apples, crabapples and pear trees. The warm, humid mid-summer was perfect for rust growth, and so was the rainy spring.

On the juniper trees, cedar apple rust appears as alien-like orange glob with gelatinous tentacles. On pear and apple, the two rusts' appearances are much less dramatic.