leaf rust

noun

Definition of leaf rust

: a rust disease of plants and especially of wheat that affects primarily the leaves

Examples of leaf rust in a Sentence

Recent Examples on the Web But in her research, Aime has been building what is effectively a genetic atlas of coffee-leaf rust, made up of genomic analyses of thousands of fungal samples. Maryn Mckenna, The Atlantic, "Coffee Is Under Attack," 16 Sep. 2020 The plants are infected with coffee-leaf rust, a devastating fungus. Maryn Mckenna, The Atlantic, "Coffee Is Under Attack," 16 Sep. 2020 Coffee leaf rust is one of the biggest threats to coffee production, but a team of ecologists may have found its potent natural enemy: the Asian trampsnail. Jonathan Wolfe, New York Times, "Coronavirus, Bernie Sanders, Dinosaurs: Your Wednesday Evening Briefing," 11 Mar. 2020 That was when Professor Perfecto and two other ecologists, Zachary Hajian-Forooshani and John Vandermeer, visited the area trying to understand why the region had not been as severely hit by coffee leaf rust as Central America and Mexico. Maria Cramer, New York Times, "Could an Invasive Snail Save Your Morning Coffee?," 11 Mar. 2020 And the complexities of the coffee bean — and the leaf rust that's threatening to wipe out coffee farms worldwide — make coffee as interesting of a crop as any other. Fox News, "Chemistry," 20 Mar. 2018 The aim is to inform customers about the challenges these farmers face, including coffee leaf rust and climate change, and the company’s commitment to ethical and sustainably sourced coffee. Natasha Bach, Fortune, "Starbucks Is Doing Something Different for National Coffee Day," 29 Sep. 2017 The idea is to analyze farmers’ photographs of suspicious spots on crop leaves and deliver early warnings for diseases such as wheat leaf rust, said Richard Trethewey, who heads bioscience digitalization for BASF. Jacob Bunge, WSJ, "Agricultural Giants Teach Computers to Farm," 13 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'leaf rust.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of leaf rust

1859, in the meaning defined above

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The first known use of leaf rust was in 1859

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Last Updated

25 Nov 2020

Cite this Entry

“Leaf rust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leaf%20rust. Accessed 15 Jan. 2021.

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