myrtle rust

noun

A pathogenic fungus, Austropuccinia psidii, that affects plants in the family Myrtaceae; originally native to South America, but has been introduced to Australia, New Zealand, and the United States.

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Meanings

nounmyrtle rust (uncountable)
  1. uncountableA pathogenic fungus, Austropuccinia psidii, that affects plants in the family Myrtaceae; originally native to South America, but has been introduced to Australia, New Zealand, and the United States.
Cite this entry
APA

myrtle rust. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/myrtle%20rust

MLA

“myrtle rust.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/myrtle%20rust. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “myrtle rust,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/myrtle%20rust.

Source: myrtle rust on Wiktionary, CC BY-SA 4.0.