Definition

Noun: A fungal disease affecting lettuce plants, characterized by the initial rotting of the lower, outer leaves, which then progresses upward through the plant.

Usage

This term is used specifically in agricultural and horticultural contexts to describe a plant pathology. - The lettuce crop was severely damaged by bottom rot this season. - Gardeners should ensure proper spacing to reduce humidity and prevent bottom rot.

Advanced Usage

• "to show signs of bottom rot": to display the initial symptoms of the disease.
  • The outer leaves began to wilt and show signs of bottom rot.

Variants and Related Words

• Bottom rot fungus: Refers specifically to the pathogen that causes the disease.
  • The field was treated for bottom rot fungus.

Synonyms

• Lettuce drop (This can be a related but sometimes distinct condition; it is a near-synonym in general agricultural discourse).
• Fungal blight (a more general term for plant diseases with similar symptoms).

Noun

1. fungous disease of lettuce that first rots lower leaves and spreads upward