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_GLocusts are grasshoppers that can turn into a swarming pest under the right conditions—one of nature’s most dramatic (and destructive) transformations.
🦗 What makes a locust different?
🔹Locusts are not a separate species from grasshoppers. Some species can switch between:
🔹Solitary phase – harmless, avoid each other
🔹Gregarious phase – crowd together, change color/behavior, and form huge swarms
🔹This switch is triggered by rain → rapid plant growth → crowding.
🌍 Major locust species
🔸Desert locust (Schistocerca gregaria) – Africa, Middle East, South Asia
🔸Migratory locust – Asia
🔸Red locust – Africa
🔸Madagascar migratory locust – Madagascar (a serious local threat)
🌱 Life cycle
Eggs laid in moist soil
Hoppers (nymphs) – wingless, move in bands
Adults – develop wings and can fly long distances
👉 Whole cycle can take 2–4 months, faster with warmth and rain.
🌪️ Swarms
Can contain billions of locusts
Travel up to 150 km in one day
A 1 km² swarm can eat food for 35,000 people in a day
🌾 Why they’re dangerous
Devour crops, grass, and leaves
Cause food shortages and famine risk
Hit arid and semi-arid regions hardest (like parts of Madagascar, Africa, and India)
🛑 Control methods
Early monitoring of breeding areas
Biopesticides (fungus-based, eco-friendly)
Targeting hopper bands before they fly
Satellite and drone tracking in modern control programs
.
For educational purposes
Via @bbcearth
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