Definition

1. Noun:
   • A plant disease caused by soil-borne fungi, specifically those belonging to the form genus Rhizoctonia or the related genera Pellicularia and Corticium. This disease typically affects the roots, stems, and lower leaves of various plants, often leading to damping-off, root rot, or stem cankers.

Usage Examples

• Noun:
  • The potato crop was severely damaged by rhizoctinia disease, resulting in significant yield loss.
  • Gardeners must practice crop rotation to reduce the risk of rhizoctinia disease in their seedlings.
  • The characteristic symptoms of rhizoctinia disease include brown, sunken lesions on the stem near the soil line.

Advanced Usage

• "to be susceptible to rhizoctinia disease": Describes a plant variety or species that is easily infected by the causative fungi.
  • Many turfgrass species are highly susceptible to rhizoctinia disease, especially in humid conditions.
• "outbreak of rhizoctinia disease": Refers to a sudden, widespread occurrence of the disease.
  • An outbreak of rhizoctinia disease in the nursery devastated the young saplings.

Variants and Related Words

• Rhizoctonia (n): The form genus name for the imperfect fungi (anamorphic stage) that are primary causal agents of this disease.
• Damping-off (n): A common symptom of rhizoctinia disease in seedlings, where stems rot at the soil line, causing the plants to collapse.
• Web blight (n): A specific manifestation of the disease on foliage, often caused by .

Synonyms

• Rhizoctonia rot: A synonym emphasizing the rotting symptoms.
• Root and stem rot (caused by Rhizoctonia): A more descriptive synonym.

Related Phrases

• Control of rhizoctinia disease: Refers to the management practices used to prevent or mitigate the disease.
  • Fungicide application is one method for the control of rhizoctinia disease.
• Resistance to rhizoctinia disease: Refers to a plant's inherent ability to withstand infection.
  • Plant breeders are developing bean varieties with improved resistance to rhizoctinia disease.

Related Terminology

• Soil-borne pathogen: A general term for disease-causing organisms, like the fungi responsible for rhizoctinia disease, that live in the soil.
• Basidiomycete fungi: The broader taxonomic group (phylum Basidiomycota) to which the perfect (teleomorphic) stages of the fungi (, ) belong.

Noun

1. disease caused by rhizoctinia or fungi of Pellicularia and Corticium