aster yellows: meaning, definition, pronunciation and examples
Very Low (Technical/Low Frequency)Technical/Scientific
Quick answer
What does “aster yellows” mean?
A plant disease caused by phytoplasma bacteria, affecting a wide range of plants, characterized by yellowing and stunting of growth.
Audio
Pronunciation
Definition
Meaning and Definition
A plant disease caused by phytoplasma bacteria, affecting a wide range of plants, characterized by yellowing and stunting of growth.
Refers specifically to the complex of symptoms and the pathological condition resulting from infection by phytoplasmas of the aster yellows group, often spread by leafhopper insects.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. Spelling is consistent. The disease is known by the same name in both horticultural and agricultural contexts.
Connotations
Purely technical/agricultural pathology term in both regions.
Frequency
Equally low frequency in both varieties, confined to specialized texts on plant pathology, horticulture, and agriculture.
Grammar
How to Use “aster yellows” in a Sentence
The crop [suffered from/vsuccumbed to] aster yellows.Leafhoppers [transmit/spread/carry] aster yellows.Aster yellows [affects/stunts/yellows] the plant.Vocabulary
Collocations
Examples
Examples of “aster yellows” in a Sentence
verb
British English
- The entire row of carrots has been aster-yellowed.
- The perennial border is aster-yellowing.
American English
- The marigolds got aster-yellowed last season.
- If it aster-yellows, you must remove the plant.
adjective
British English
- The aster yellows-infected plants were removed.
- We are monitoring for aster yellows symptoms.
American English
- The aster-yellows-damaged crop was plowed under.
- An aster yellows outbreak is possible.
Usage
Meaning in Context
Business
Rare. Might appear in agricultural supply or crop insurance reports, e.g., 'Yield was impacted by aster yellows.'
Academic
Primary context. Used in botany, plant pathology, agricultural science journals and textbooks.
Everyday
Extremely rare. Virtually never used outside of gardening forums or by serious gardeners.
Technical
Core context. Precise term in plant pathology for a specific disease complex caused by phytoplasmas.
Vocabulary
Synonyms of “aster yellows”
Neutral
Weak
Vocabulary
Antonyms of “aster yellows”
Watch out
Common Mistakes When Using “aster yellows”
- Using singular 'aster yellow'.
- Confusing it with nutrient deficiency yellowing.
- Misspelling as 'aster yelows'.
- Using it as a countable noun (e.g., 'an aster yellows').
FAQ
Frequently Asked Questions
No, aster yellows is a plant disease and does not infect humans or animals.
No, there is no cure. Infected plants should be removed and destroyed to prevent spread.
It affects a very wide range, including vegetables (carrots, lettuce), flowers (asters, coneflowers), and herbs.
Primarily by sap-sucking insects called leafhoppers, which carry the phytoplasma from plant to plant.
A plant disease caused by phytoplasma bacteria, affecting a wide range of plants, characterized by yellowing and stunting of growth.
Aster yellows is usually technical/scientific in register.
Aster yellows: in British English it is pronounced /ˈæstə ˈjeləʊz/, and in American English it is pronounced /ˈæstɚ ˈjeloʊz/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine yellow stars ('asters') in a garden, but the stars are sickly and wilting – 'aster yellows' makes the plants yellow.
Conceptual Metaphor
DISEASE IS AN INVADER / UNHEALTHY STATE IS A COLOUR (yellow as a marker of sickness).
Practice
Quiz
What is 'aster yellows' primarily associated with?