First Rains of the Season: Which Pests Show Up in the First Two Weeks

The first heavy rain changes the pest picture within days.

Knowing what to expect helps you respond calmly.

The short answer

In the first two weeks, you may see winged termite and ant swarmers around lights, flying beetles and moths, cockroaches coming out of drains, millipedes and centipedes on walls, frogs, snakes and scorpions seeking dry places, and rising mosquito numbers. Switch off unnecessary lights, close gaps, clear water and call a professional if swarmers appear inside.

What to expect

• Winged termites and flying ants.
• Beetles and moths around lights.
• Cockroaches moving up from drains.
• Millipedes, centipedes and snails.
• Scorpions and snakes near gardens.
• Mosquitoes in standing water.

What to do

1. Turn off extra lights at dusk.
2. Close doors and windows or use screens.
3. Seal gaps and cover drains.
4. Clear standing water.
5. Check wooden furniture for swarmer wings.

When to worry

Large numbers of winged insects emerging indoors, or piles of shed wings, can signal termites and need inspection.

When to call a professional

If the problem is widespread, keeps returning or you are unsure what you are dealing with, a professional inspection will save time and avoid wasted effort.

Frequently asked questions

Are swarms dangerous?

Mostly harmless, but termite swarmers can signal a colony.

Will they go away?

Usually within days.

Should I spray?

Sweeping and sealing work better.

When to call a professional?

If they emerge indoors repeatedly.

This guide is part of IPest's complete resource on pest control. For identification help, prevention and treatment options, see our full pest control guide for Bangalore.