Core Viewpoint - This summer, increased rainfall in Beijing has led to a significant rise in mosquito density, prompting health authorities to enhance monitoring and control measures [1][2]. Group 1: Rainfall and Mosquito Breeding Conditions - From June 1 to August 20, Beijing recorded a total rainfall of 586.0 mm, which is 67% higher than the average of 350.5 mm for the same period [1]. - The combination of frequent rainfall and suitable temperature and humidity has created ideal conditions for mosquito breeding, particularly for the white-striped tiger mosquito [2]. Group 2: Monitoring and Control Measures - The Beijing Center for Disease Control has intensified mosquito monitoring efforts by increasing the number of monitoring points, frequency of monitoring, and expanding the monitoring areas [2][3]. - Various monitoring methods are employed at each point to comprehensively track mosquito dynamics, resulting in a significant increase in workload compared to previous years [2]. Group 3: Public Awareness and Prevention - Residents are advised to promptly clear standing water after rainfall, as urban environments often create breeding sites for mosquitoes [3]. - It is emphasized that most mosquitoes found in residential areas are likely bred nearby, highlighting the importance of community efforts in mosquito control [3]. Group 4: Mosquito Activity Patterns - The two most common mosquito species in Beijing are the light-colored Culex pipiens (yellow mosquito) and the white-striped tiger mosquito (flower mosquito), with activity peaks occurring at different times of the day [4]. - Residents are encouraged to avoid outdoor activities during peak mosquito activity times and to use protective measures such as wearing long sleeves and applying repellent products [4][5].