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  • damping-off
    damping-off
    noun
    a disease of seedlings, occurring either before or immediately after emerging from the soil, characterized by rotting of the stem at soil level and eventual collapse of the plant, caused by any of several soil fungi.
  • damping off
    damping off
    noun
    any of various diseases of plants, esp the collapse and death of seedlings caused by the parasitic fungus Pythium debaryanum and related fungi in conditions of excessive moisture

damping-off

American  
[dam-ping-awf, -of] / ˈdæm pɪŋˈɔf, -ˈɒf /

noun

Plant Pathology.
  1. a disease of seedlings, occurring either before or immediately after emerging from the soil, characterized by rotting of the stem at soil level and eventual collapse of the plant, caused by any of several soil fungi.


damping off British  

noun

  1. any of various diseases of plants, esp the collapse and death of seedlings caused by the parasitic fungus Pythium debaryanum and related fungi in conditions of excessive moisture

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

damping off Scientific  
  1. Any of various diseases of seedlings that are caused by oomycetes, especially of the genus Pythium, or by fungi, and result in wilting and death.


Etymology

Origin of damping-off

First recorded in 1895–1900

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The research team zeroed in on Globisporangium ultimum, a major soil-borne oomycete responsible for damping-off and root rot in many plant species.

From Science Daily Jun. 19, 2024

Tipping fills each flat with a homemade potting mix of about 10 parts well-aged compost to one part sand, which improves the drainage and helps limit surface algae growth and damping-off disease.

From Seattle Times Jan. 31, 2024

High soil moisture, high humidity, high temperature, and faulty ventilation, all favor the ravages of the various damping-off fungi mentioned above which cause little plants to rot off near the ground.

From The Tomato by Work, Paul

He observed that thin-shelled nuts germinate more quickly than thick-shelled ones, and warned against "damping-off" fungi which often killed young seedlings.

From Northern Nut Growers Association Report of the Proceedings at the 44th Annual Meeting Rochester, N.Y. August 31 and September 1, 1953 by Northern Nut Growers Association

The use of sand on the surface of a heavier soil may save plants from damping-off, because the sand passes the water quickly and dries, while a heavier surface soil would remain soggy.

From One Thousand Questions in California Agriculture Answered by Wickson, Edward J. (Edward James)

Disinfect the pots, flats and cell packs before planting to avoid problems with damping off and other diseases.

From Seattle Times Apr. 24, 2024

Another issue is that planting in cool, overly wet soil encourages damping off, a disease caused by mold or fungus that rots the stems of tender seedlings.

From Los Angeles Times Mar. 31, 2023

“There’s a little bit of a dance between making sure they’re moist and not overly moist,” he says, to avoid issues like damping off, a fungal disease that often kills or weakens seedlings.

From Seattle Times Jan. 13, 2022

Perhaps he overlooked the packets’ stern warnings about overcrowding and etiolation and damping off, their instructions to carefully sprinkle pre-wetted soil extremely sparsely with, say, five seeds at a time.

From The New Yorker Apr. 23, 2019

The damping off of the flower-buds may occasionally prove troublesome during winter.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" by Various

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