Sex pheromone

Tea plants are perennial evergreen shrubs, and environmental pollutants accumulate in tea gardens and within the plants over time. Due to their large leaf surface area, tea plants have a higher initial deposition of pesticides or adsorb higher concentrations of environmental pollutants under the same dosage and air pollution levels compared to other crops. With multiple harvests per year, the interval between pesticide application and harvest is short, reducing the time for pesticide degradation. After picking, tea leaves are directly processed into dried tea, which is then steeped for consumption, causing any pesticide residues or pollutants to leach into the tea infusion based on their solubility. Therefore, the ecological environment of tea gardens and the quality safety of tea products receive significant attention. I. Development of Pest Management Technologies in China 1. Traditional Control Stage Before the 1940s, tea gardens were scattered and sporadic, with relatively few pest outbreaks. Pest control technologies were also rudimentary. Since the founding of the People's Republic of China, although tea production rapidly developed, pest management in tea gardens remained at the stage of agricultural control measures and the use of plant-based pesticides. Although this period was technologically primitive from an ecological perspective, the populations…