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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.


Etymology

Origin of leaf rust

First recorded in 1860–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A wakeup call came in 2012, when shifts in temperature and rainfall linked to climate change triggered an outbreak of coffee leaf rust, a debilitating fungus, that would affect Latin America for years.

From Salon Jul. 24, 2024

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

The primary resistance of the new Starbucks trees will be against coffee leaf rust.

From Seattle Times Sep. 26, 2023

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

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