Every 48–50 years, the bamboo species Melocanna baccifera flowers synchronously across Mizoram, India, in an event called Mautam ("bamboo death"). While ecologically natural, it triggers a cascade of crises that instill deep fear.
Bamboo seeds are a superfood for rats. Their population explodes—millions invade farms, granaries, and homes, devouring crops and spreading diseases like leptospirosis.
The flowering bamboo releases soil toxins that inhibit other plants. Combined with rat devastation, staple crops (rice, maize) fail, leading to acute food shortages and famine.
Bamboo is vital for construction, crafts, and income. Flowering kills the culms, halting harvesting for years and destroying livelihoods.
Mizo folklore links Mautam to disaster, death, and societal upheaval. Oral histories of past cycles (1911, 1959, 2007) reinforce dread.
The government now implements pre-emptive measures: rodent control campaigns, promoting rodent-resistant crops, early warning systems, and scientific research on the toxin. Community education combats fatalism. While Mautam remains a massive challenge, preparedness has reduced its deadliest impacts.