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black stem

American  

noun

Plant Pathology.
  1. a disease of plants, characterized by blackened stems and defoliation, caused by any of several fungi, as Ascochyta imperfecta or Mycosphaerella lethalis.


Example Sentences

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See Examples For:

Next, the scientists raised black stem borers in the lab, exposing them to a tube full of sawdust.

From National Geographic Apr. 9, 2018

What's more, the researchers found that ethanol promotes the growth of symbiotic fungi preferred by several other types of ambrosia beetles, suggesting the phenomenon is not unique to the black stem borer, Biedermann says.

From National Geographic Apr. 9, 2018

Ug99, which was discovered in Uganda in 1999, is a form of black stem rust that can wipe out whole harvests.

From BBC Jun. 27, 2013

It looked like a mushroom atom cloud, low with a black stem.

From Time Magazine Archive

The blackish or brown pileus, which is more or less tomentose, with a black stem more or less deformed, will serve to distinguish the species.

From The Mushroom, Edible and Otherwise Its Habitat and its Time of Growth by Hard, Miron Elisha

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