Hong Kong Summer Mosquitoes: Complete Guide to Effective Prevention and Control

Hong Kong's summer (May to October) is peak mosquito season. The hot, humid climate dramatically accelerates mosquito breeding. The Department of Health publishes a Mosquito Ovitrap Index annually, alerting residents to risks from the tiger mosquito (Aedes albopictus) and the common house mosquito (Culex quinquefasciatus).
Eliminate Standing Water Breeding Sources (Most Important)
Mosquitoes breed in standing water — a container as small as a coin can breed hundreds of mosquitoes. Check and clear the following weekly: plant pot saucers (change water every 1–2 days); rooftop and balcony puddles; air conditioner drip trays; any empty containers (tins, plastic bags, etc.); discarded tyres; buckets and tanks (cover or clean regularly).
Indoor Mosquito Prevention Measures
Install mosquito screens on windows and doors; use electric mosquito swatters or UV insect traps; use mosquito coils or electric mosquito repellent before sleep; keep air conditioning areas sealed; use mosquito repellent containing DEET or citronella.
Outdoor and Garden Mosquito Solutions
For homes with gardens or terraces: schedule regular long-lasting mosquito spray treatments (monthly recommended); install mosquito traps; plant natural repellents like lavender or citronella; ensure no standing water in the garden. For severe infestations, a professional pest control company can provide garden mosquito spray service lasting 4–6 weeks.