Why do biting midges appear in the house?

Why do biting midges appear in the house?

Biting midges do not appear for no reason. Their presence has only one cause: there is a damp environment in the house suitable for them to breed.

Most common breeding sources

1. Standing water in plant pot trays — the number one source of indoor midges. Water sitting for more than 3-5 days allows larvae to develop.
2. Drains and floor drains — grime and grease on pipe walls, combined with dampness, are ideal breeding grounds for midge larvae.
3. Garbage bin bottoms — liquid from kitchen waste accumulates at the bottom, breeding adults and larvae.
4. Bathroom dead corners — under the sink, behind the toilet, and shower floor drains — these damp, dark areas are prone to breeding.
5. Balcony standing water — from air conditioner condensation, rain accumulation, or excess watering that does not dry out.

Outdoor sources

• If the home is near ponds, wetlands, ditches, or green belts, midges may also fly in from outside.
• Lower-floor residents (1st-3rd floors) are more susceptible to outdoor midges.
• Homes with yards may have weed and leaf piles as breeding sources.

Solution

Remove standing water, keep things dry, regularly clean drains and floor drains, and spray dinotefuran-containing household insecticide on corners and window sills. Midges will disappear quickly. The key is to persist for 1-2 weeks — midges have a short breeding cycle, and once the environment improves, newly hatched midges will have nowhere to breed and will disappear.