leaf rust

American  

noun

Plant Pathology.

1. a disease, especially of cereals and other grasses, characterized by rust-colored pustules of spores on the affected leaf blades and sheaths and caused by any of several rust fungi.

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Etymology

Origin of leaf rust

First recorded in 1860–65

Example Sentences

See Examples For:

leaf rust

Its low genetic diversity means it could be completely decimated, like the monoculture Cavendish banana, by pathogens, such as coffee leaf rust, which causes $1-2 billion in losses annually.

From Science Daily ● Apr. 15, 2024

Another tactic is planting different varieties that can better withstand both the leaf rust and other climate stressors, according to Hanna Neuschwander, the director of strategy and communications at World Coffee Research.

From Seattle Times ● Nov. 2, 2021

Beyond alleged counterfeiters, his nemeses are rats, invasive plants, twig- and berry-boring beetles and coffee leaf rust, a predatory fungus from 19th century Africa that reached the Big Island last fall.

From Los Angeles Times ● Mar. 17, 2021

He wants to replant hundreds of trees in a fallow area where leaf rust - a fungus that damages flowering - forced him to uproot coffee plants a few years ago.

From Reuters ● May 22, 2019

Even with prior planning and new hybrids, by 2010 leaf rust was affecting 40 percent of Colombia’s coffee farms.

From Salon ● May 13, 2013