phloem necrosis

noun

Plant Pathology.

1. a disease of the American elm caused by a mycoplasmalike organism, characterized by yellowing and necrosis of the foliage and yellowish-brown discoloration of the phloem.

Word History and Origins

Origin of phloem necrosis¹

First recorded in 1920–25

Example Sentences

Sweeping out of the Middle West was an even more deadly disease, phloem necrosis, which kills thousands of elms every year.

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