Definition

Noun: A plant disease, specifically affecting tropical woody plants such as cacao, tea, or citrus trees. The disease is characterized by the appearance of fungal threads (mycelium) that resemble dark webbing or strands on the branches and leaves, often leading to withering and dieback.

Usage

This term is a technical noun used primarily in the fields of botany, agriculture, and plant pathology. * The cacao plantation suffered significant losses due to a severe outbreak of thread blight. * Researchers are studying fungicides to control thread blight in citrus groves.

Advanced Usage

• The term is often modified by the name of the specific causal fungus (e.g., ) or the host plant (e.g., citrus thread blight).
• It can be used in a compound adjective form, such as "thread-blight-infected" branches.

Variants and Related Words

• Blight (n.): A general term for any plant disease that causes withering and death of parts without rotting.
• Dieback (n.): A condition where a tree or shrub begins to die from the tip of its leaves or roots backward, often a symptom of diseases like thread blight.

Synonyms

• Fungal blight
• Web blight (a closely related type of disease with similar symptoms)

Notes on Meaning

This is a highly specific technical term with a single, clear meaning related to plant pathology. It does not have common idiomatic or figurative uses.

Noun

1. a disease of tropical woody plants (cacao or tea or citrus)