Pre-Monsoon Heat Triggers Early Termite Swarms Across North Indian Homes

A warmer-than-usual February is waking termite colonies early

Pest control field teams across Dehradun, Haridwar, Roorkee and parts of Western Uttar Pradesh have flagged a sharp uptick in winged-termite (alate) sightings during the second week of February — nearly four to five weeks ahead of the usual swarm cycle.

Subterranean termite colonies typically wait for warm, humid evenings before releasing reproductives. Higher than normal day-time temperatures combined with damp soil from late-winter showers have created the exact conditions colonies need to launch a fresh expansion.

What homeowners are noticing

• Small piles of identical, translucent wings near windows, balcony doors and pooja-room corners.
• Fresh mud tubes climbing the outer plinth or rising from skirting boards.
• Doors and window frames that suddenly feel "spongy" or sound hollow when tapped.
• Tiny exit holes in plywood wardrobes that were silent through winter.

Why an early swarm is bad news

Every swarming pair that finds soft, moist wood becomes a brand-new colony. A colony that begins in February will be fully active and breeding by May, which is when most homeowners notice damage to skirting, ply-wood and wooden furniture. By then the queen has already produced thousands of workers operating silently behind walls.

Recommended action this week

• Inspect plinth-level joints, bathroom walls and the back of wooden almirahs.
• Do not spray or disturb visible mud tubes — that only forces the colony to relocate inside the wall.
• Book a chemical perimeter treatment (anti-termite barrier) before the first heavy April shower; treatment windows fill quickly once swarming peaks.
• If you spot wings near a particular wall, photograph them with timestamp — it helps the technician trace the entry point.