desert locust
LowTechnical/Scientific, Journalistic
Definition
Meaning
A species of grasshopper (Schistocerca gregaria) found in Africa, the Middle East, and Asia, notorious for forming massive, destructive swarms when population density triggers a behavioural and physical change (gregarization).
A metaphor for a sudden, overwhelming, and devouring force or phenomenon, often used to describe large groups of people or things that consume resources rapidly. Also refers to the specific periodic plagues caused by these insects.
Linguistics
Semantic Notes
Always a compound noun. As a term, it is highly specific to entomology and agricultural/economic reporting on pest outbreaks. The word 'desert' specifies its primary habitat, not that it 'deserts' anything.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. UK spelling conventions may be used in UK publications (e.g., 'centre of the infestation' vs US 'center').
Connotations
Identical technical and catastrophic connotations in both varieties.
Frequency
Equally low-frequency in both varieties, spiking in news cycles during major regional outbreaks.
Vocabulary
Collocations
Grammar
Valency Patterns
The [NOUN: desert locusts] [VERB: devoured] the crops.Authorities are [VERB: battling] a [ADJECTIVE: severe] [NOUN: desert locust] infestation.The [NOUN: swarm] of [NOUN: desert locusts] [VERB: descended] upon the region.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Like a plague of desert locusts (meaning: utterly consuming/destructive).”
Usage
Context Usage
Business
Used in reports on agricultural commodity risks, insurance claims, and impact on food supply chains.
Academic
Used in entomology, ecology, agricultural science, and climate change studies on pest behaviour.
Everyday
Rare, except in news reports about famines or agricultural disasters in affected regions.
Technical
Precise term for the species, its life cycle phases (solitarious vs. gregarious), swarm dynamics, and control measures.
Examples
By Part of Speech
verb
British English
- The region was completely desert locusted last season.
- Farmers fear their fields will be desert locusted.
American English
- The county was totally desert locusted last year.
- Crops are at risk of being desert locusted.
adverb
British English
- The crops were eaten desert-locust-fast.
- The swarm moved desert-locust-quickly across the plain.
American English
- The fields were consumed desert locust fast.
- They spread desert locust quickly through the valley.
adjective
British English
- The desert-locust threat level has been raised.
- They are experts in desert-locust management.
American English
- The desert locust threat level has been elevated.
- They specialize in desert locust control.
Examples
By CEFR Level
- The desert locust is a big insect.
- Desert locusts can eat plants.
- A large swarm of desert locusts can destroy many crops.
- Some countries in Africa have problems with desert locusts.
- The UN has issued a warning about a serious desert locust outbreak in East Africa.
- Controlling desert locust swarms requires international cooperation and swift action.
- The gregarization process, whereby solitary desert locusts transform into the swarming phase, is triggered by specific environmental stimuli.
- Satellite imagery and predictive modeling are now crucial tools in monitoring and forecasting desert locust migrations.
Learning
Memory Aids
Mnemonic
Imagine a LOCUST that prefers the DESERT, but when it swarms, it leaves the land as barren as a desert.
Conceptual Metaphor
DESTRUCTION IS CONSUMPTION BY LOCUSTS; A SUDDEN PROBLEM IS A SWARMING LOCUST.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- The word 'desert' is pronounced /ˈdez.ət/ and is not related to the verb 'to desert' /dɪˈzɜːt/. It is the noun for 'пустыня'.
- The term is a fixed compound. Translating it word-for-word as 'пустынная саранча' is correct, but the specific species is known scientifically and in media as 'пустынная саранча' or 'африканская саранча'.
Common Mistakes
- Misspelling as 'dessert locust' (confusing with the sweet treat).
- Using 'locust' alone when the specific species is meant, as there are many types of locusts.
- Pronouncing 'desert' as in 'to abandon' (/dɪˈzɜːt/).
Practice
Quiz
What primarily triggers the formation of massive desert locust swarms?
FAQ
Frequently Asked Questions
Yes, but specifically it refers to the species Schistocerca gregaria, which is adapted to arid regions and is the most devastating swarming locust due to its speed and scale.
It is pronounced like the geographical feature (/ˈdez.ət/ or /ˈdez.ɚt/), not like the verb 'to desert' (/dɪˈzɜːt/). Think 'Sahara Desert' + 'locust'.
All locusts are grasshoppers, but desert locusts have a unique 'phase polymorphism'. Under crowded conditions, they change colour, behaviour, and physiology to form cohesive, migratory swarms that regular grasshoppers do not.
Yes. Swarms can travel up to 150 km (90 miles) per day, aided by wind. Historically, they have spread from West Africa to India, covering thousands of kilometres and crossing oceans like the Red Sea.