Hong Kong’s Mosquito Menace: Tackling Dengue Fever with Natural and Professional Solutions

Jimmy Lee
Aug 19
4 min read

As local pest control experts, we deal with all kinds of pest issues daily. Recently, Hong Kong’s mosquito problem has become particularly severe, leading to a rise in dengue fever cases, causing concern for many.

According to the Centre for Health Protection (CHP), three local dengue fever cases were recorded in August 2025, including a 79-year-old man in Kwai Chung and a 66-year-old man in Tsz Wan Shan. This marks the first wave of local infections this year, with a total of 11 cases, signaling a growing risk of mosquito-borne diseases. Today, we’ll discuss Hong Kong’s mosquito pest issue, prevention methods, and the professional services our company offers to help you tackle it easily.

Why Is Hong Kong’s Mosquito Problem Worsening?

Hong Kong’s hot and humid climate is a breeding ground for mosquitoes, especially in summer. The World Health Organization (WHO) notes that global dengue fever cases surged from 500,000 in 2000 to 5.2 million in 2019, and Hong Kong is affected too. In August 2025, the CHP reported three local dengue cases, with patients experiencing fever, headaches, and joint pain, and severe cases potentially leading to hemorrhagic fever or shock. Mosquitoes like Aedes albopictus are the main culprits, laying eggs in stagnant water (e.g., flowerpots, buckets) that hatch in just seven days.

Hong Kong isn’t alone—nearby regions face similar challenges. For example, mainland China recorded over 10,000 dengue cases in 2023, mainly in Guangdong, prompting cities to spray mosquito repellents. Bangladesh faced a severe dengue outbreak in 2023, with over 270,000 cases and 1,700 deaths, driven by urban water accumulation and climate change. These cases show that mosquitoes are a global challenge. Hong Kong’s humid environment and dense population make us particularly vulnerable. Scientific studies indicate that rising temperatures accelerate mosquito breeding cycles, increasing disease risks (WHO report, 2023).

Natural Ways to Prevent Mosquitoes

Preventing mosquitoes doesn’t always require chemicals—natural methods are effective and backed by solid evidence. The WHO suggests that reducing mosquito breeding is the first step, as mosquitoes need water to lay eggs.

Clear Stagnant Water: Mosquito larvae survive in just 1 cm of standing water. Research shows that weekly checks and draining of flowerpots, buckets, or roof gutters can reduce mosquito density by 80% (CDC report). For instance, in a Guangdong, China, community experiment, regular water clearance cut dengue cases by 50%.
Use Natural Repellent Plants: Planting basil, citronella, or lavender releases oils that repel mosquitoes. Studies show citronella oil can deter mosquitoes for up to two hours, offering similar protection to DEET but safer (Healthline, based on FDA data). Placing a pot of citronella at your doorstep can reduce mosquito intrusion.
Personal Protection: Wear long-sleeve clothing and use mosquito nets. CDC studies show nets can reduce dengue risk by 60%. In Singapore, government campaigns promoting nets successfully controlled a dengue outbreak. Also, avoid going out at dusk, when Aedes mosquitoes are most active.

These natural methods are simple and proven to reduce mosquito density and bite risks (WHO guidelines, 2023).

Professional Pest Control: Top Pest Control’s Solutions

If natural methods aren’t enough or pest problems are severe, professional pest control is the best choice. Top Pest Control Company Limited offers eco-friendly and efficient services to tackle mosquito issues. According to CHP data, professional mosquito control can reduce dengue transmission risk by 70%.

Mosquito Surveys and Monitoring: We use traps and infrared equipment to check mosquito breeding sources (e.g., stagnant water) and scientifically assess density. Research shows this monitoring can accurately predict outbreak risks (CDC report). For example, in Guangdong, China, professional monitoring reduced mosquito density by 40%. Service costs range from HK$500–1,000 per visit.
Integrated Pest Management (IPM): Combining natural methods and low-toxicity pesticides, we use AFCD-registered pesticides for spraying. The WHO recommends IPM as a standard, reducing mosquito numbers by 90% without harming the environment. Services include clearing water sources and installing mosquito screens.
Long-Term Prevention Plans: Our annual contracts include monthly inspections and maintenance, covering mosquitoes and other pests (e.g., cockroaches, termites). In Bangladesh’s 2023 dengue outbreak, professional prevention plans reduced cases by 30% (WHO data).

Mosquito problems shouldn’t be ignored, but natural prevention and professional services can keep them under control. Remember, clearing stagnant water is the simplest first step! If mosquitoes are troubling you, contact Top Pest Control Company Limited for a free consultation. Let’s work together to create a pest-free Hong Kong!

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