orange rust

noun

, Plant Pathology.

1. a disease of blackberries and raspberries, characterized by an orange, powdery mass of spores on the undersides of the leaves and stunted, misshapen foliage, caused by a rust fungus, Gymnoconia interstitialis.

Example Sentences

Zia Tile has a catalog of 64 colors, and Case Study includes four new offerings — ruddy Pompeii; cool beige Dune; burnt orange Rust; and Elemental Blue, an Yves Klein-inspired cobalt shade.

From New York Times

Orange rust coated the floor, crept over pipes and trailed from crevices in the walls, according to cell phone photos taken four months before the explosion.

From Seattle Times

While the other containers were brightly colored and marked with company logos, this one was black with big patches of orange rust.

From Literature

Dashes of orange rust formed a stripe, like a lane line on a freeway.

From Los Angeles Times

Plants that are orange, rust, brown or bronze warm my heart and liven up gray days.

From Seattle Times