Yes, mosquitoes are present in Chengdu, particularly during the warm and humid months when the city's subtropical climate and frequent rainfall create ideal breeding conditions in the Sichuan Basin. While the risk is generally considered moderate to high during the peak summer season, local authorities have taken innovative steps to manage the population, such as opening a "mosquito-free" park that utilizes dozens of specialized hunting machines to lure and trap the insects. Travelers are advised to wear long-sleeved clothing and use repellents, which are widely available in local convenience stores, especially when visiting parks or mountainous areas like Mount Qingcheng, which is known to house various species including the large but harmless Holorusia mikado crane fly. Although most common mosquitoes in the region are primarily a nuisance, health authorities have recently increased vigilance and public reminders regarding the prevention of mosquito-borne illnesses like dengue fever as activity can begin as early as March.