Pesticide

Tea plants are leaf crops cultivated for the harvest of young leaves and buds. Spring tea is the season with the highest quality and most significant economic benefits in the annual tea production cycle. Currently, it is a critical period for implementing spring farming activities across the province. Promptly addressing spring tea production and implementing relevant tea garden management measures play a vital role in enhancing tea yield and quality, as well as increasing the economic benefits for tea farmers and tea enterprises. I. Early Application of Bud Stimulating Fertilizer The new shoots of tea plants in spring grow vigorously, at a rapid pace, and consume relatively large amounts of nutrients. The root system has strong absorption capabilities, and it is difficult to meet the growth needs solely relying on the base fertilizer applied in the previous autumn, which can result in a "disconnection" of soil nutrients in the tea garden. Studies have shown that applying bud stimulating fertilizers about 25 days before the emergence of tea buds not only helps increase spring tea yields (comparing tea gardens with and without spring fertilization, there is an overall increase of 10%-20% in the annual yield), but also plays a good role…

"Throughout history, poets have been tea connoisseurs, toasting their friends with a cup of clear tea." In China's thousands of years of history, the humble tea leaf has played an indispensable role. Among the seven refined pursuits of life—music, chess, calligraphy, painting, poetry, wine, and tea—one cannot do without tea! The tea mountains are filled with verdant green after a whole winter of rest and accumulation. It seems that the fragrance of tea wafts from the tenderest and most vibrant branches among the leaves, its subtle aroma enchanting and intoxicating. Spring breezes are delightful, but nothing compares to sipping a cup of spring tea, lost in its floral splendor. What is Pre-Ming Tea? "Pre-Ming Tea" and "Pre-Rain Tea" are terms used in the Jiangnan tea region along the Yangtze River to refer to different stages of spring tea based on seasonal divisions. Due to the climate in the Jiangnan area, some early-emerging tea varieties begin sprouting around the Awakening of Insects and Spring Equinox. Thus, tea harvested before the Qingming Festival is called "Pre-Ming Tea." The appeal of "Pre-Ming Tea" has always been due to its high quality and relative scarcity. Its excellence lies in the tenderness of its buds…

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…

The golden autumn season sees lush tea mountains, as tea gardens enter the autumn harvest period. In the fragrant tea gardens, tea farmers are seizing good weather to pick tea leaves. As autumn gives way to winter, while busy with harvesting, it is also important to focus on winter management of tea gardens to help the tea trees comfortably "survive the winter." Due to the compounded effects of drought and the pandemic, winter management has started earlier this year, with higher technical requirements and more meticulous fertilization management. Local areas should conduct targeted pruning of tea tree canopies, fertilization management, and pest control based on the impact of drought in their respective tea gardens. They should also prepare the necessary materials for winter management. Good tea comes from good cultivation and good management. Winter management of tea gardens is a crucial technical measure for increasing the yield and quality of tea next year, reducing pest and weed damage to tea trees, and enhancing the overall efficiency of tea gardens. To implement scientific tea cultivation, one must understand the growth characteristics of tea trees. The cessation of sprouting in tea trees marks a key timepoint for winter management of tea gardens.…

The integrated approach to green precision prevention and control of major tea pests involves using core technologies such as narrow-band LED insect traps, yellow-red dual-color insect-attracting boards, and efficient sex pheromone lures to maintain target pest populations at a low level through long-term and efficient trapping. This is complemented by biological preventive measures, such as spraying inchworm virus preparations and releasing predatory mites, along with good agricultural practices to control pest populations. Finally, highly efficient, low water-soluble chemical pesticides are used as emergency measures in the event of large-scale pest outbreaks. In recent years, tea plant protection scientists have conducted extensive research on pest control techniques, developing effective green precision prevention and control technologies for tea pests. Below, we will use three of the most important pests in Chinese tea gardens—the gray inchworm, the tea inchworm, and the tea tiny green leafhopper—as examples. Integrated Approach to Green Precision Prevention and Control of Major Tea Pests I. Green Precision Prevention and Control Technology Model for Gray Inchworm and Tea Inchworm Note: “√” indicates the selected control technique at the corresponding time. The same applies below. 1. Core Key Technologies (1) Sex Pheromone Lures. Based on the severity of the previous year,…

Everyday tea, as the name suggests, is a type of tea that is always available at home and can be consumed daily. “Everyday tea” is a broad term commonly used by seasoned tea enthusiasts and does not refer to specific teas. As a daily beverage, the most significant characteristic of everyday tea is its rapid consumption; it can be considered a consumable item. Therefore, one crucial factor when selecting everyday tea is that it must offer excellent value for money. What Does Everyday Tea Mean in the Context of Puer Tea? 1. Puer everyday tea refers to high-quality Puer tea leaves that satisfy taste preferences with their appropriate strength and offer good value for money, suitable for daily consumption. Typically, this type of tea achieves a balance between quality and price. 2. The term "everyday tea" is often heard from experienced tea drinkers, imbued with multiple meanings, including recognition of the tea’s quality and consideration of its value for money. Since everyday tea is consumed daily, the cumulative amount over time is substantial, so the price must be within an acceptable range. Most tea enthusiasts’ everyday teas fall within the 1 to 200 yuan range. Teas at this price point…