sooty mold

American  

noun

1. Plant Pathology. a disease of plants, characterized by a black, sooty growth covering the affected parts, caused by any of several fungi.

2. any fungus causing this disease, as molds of the genera Capnodium, Phragmocapnias, and Scorias.

---

Etymology

Origin of sooty mold

First recorded in 1900–05

Example Sentences

It then excretes a sticky, sugary waste called honeydew that attracts insects and a form of sooty mold that can finish off the already weakened plants, posing a danger to crops and native trees.

From Seattle Times

Where the bugs are thick, lanternfly honeydew can kill the forest’s understory by blanketing it in stickiness, which encourages the growth of sooty mold.

From National Geographic

Indirectly, sooty mold can damage crops and reduce farmer’s yields, too.

From National Geographic

If that weren’t enough, the honeydew leads to the growth of sooty mold, a black fungal infection that spreads across the tree’s trunk, branches and leaves, where it can impair photosynthesis.

From Washington Post

“And so if you use a soapy water and a scrub brush, you can get rid of the sooty mold and some of the scale.”

From Washington Post