rhizoctonia disease

variants: or less commonly rhizoctonia
plural -s

Definition of rhizoctonia disease

1 : a disease caused by fungi of Rhizoctonia or closely related genera
2 : a disease of potatoes caused by a fungus (Pellicularia filamentosa synonym Rhizoctonia solani) and characterized especially by black scurfy spots on the tubers

called also little potato, rosette, russet scab, stem canker

— compare damping-off

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for rhizoctonia disease

New Latin Rhizoctonia

Keep scrolling for more

Learn More about rhizoctonia disease

Statistics for rhizoctonia disease

Cite this Entry

“Rhizoctonia disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rhizoctonia%20disease. Accessed 22 Oct. 2020.

Comments on rhizoctonia disease

What made you want to look up rhizoctonia disease? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!