Thrips

Summer and autumn are critical periods for tea garden management. Strengthening summer and autumn tea garden production management is the foundation for ensuring high-quality and high-yield summer and autumn tea and the following spring tea. The Planting Industry Management Department of the Ministry of Agriculture and Rural Affairs, together with the National Agricultural Technology Extension Service Center, the Expert Advisory Group for Tea of the Ministry of Agriculture and Rural Affairs, and the National Tea Industry Technology System, have developed the following technical guidance on summer and autumn tea garden production management and disaster prevention and mitigation. Strengthening Tea Garden Production Management (1) Tea Plant Pruning - For year-round harvesting tea gardens, promptly perform the initial light pruning after spring tea harvesting, cutting off the top 5-10 cm of shoots from the canopy. During summer tea harvesting, it is advisable to allow some growth retention and use the leaf-retention method or tip-picking method to maintain an appropriate leaf layer thickness. Harvesting should be appropriately stopped earlier in autumn to avoid affecting the yield and quality of the following year's spring tea. To cultivate a good picking surface, the second light pruning should be completed before mid-July, with the pruning height…

The tea regions of Guiyang City have been frequently impacted by extreme spring weather in recent years. According to meteorological forecasts, the city is expected to experience another cold wave soon. To cope with the upcoming temperature drops, thunderstorms, and late spring cold snaps, this document, "Preventive and Remedial Measures for Low-Temperature Freeze Damage (Late Spring Cold Snap) in Guiyang and Guian Tea Gardens," has been specially formulated for your reference. I. Preventive Measures (1) Pay Attention to Cold Wave Forecasts Strengthen forecasting and early warning systems for disastrous weather conditions, promptly issue cold wave information, and prepare in advance. After a cold wave forecast is released, tea gardens that are already open should mobilize manpower to harvest as much as possible to minimize losses from frost damage. (2) Cover Tea Gardens for Frost Protection Straw, bamboo leaves, and rice husks can be spread between rows of tea plants to keep them warm, ideally at a thickness of about 10 centimeters, which can generally increase temperatures by 1-2°C. In tea gardens on windward slopes prone to frost damage, cover the canopy with straw, weeds, or shade nets, not too tightly so that the tea plants are still visible. This will…

Green Production Technology Innovation Team, Tea Research Institute, Yunnan Academy of Agricultural Sciences / Xishuangbanna Comprehensive Test Station, National Tea Industry Technology System Mycterothrips gongshanensis, a new pest on tea plants, belongs to the order Insecta, family Thysanoptera, genus Thripidae, and species Mycterothrips. It is a cryptic bud and leaf pest that has been widely occurring in tea gardens in Yunnan province in recent years, with increasingly severe damage. I. Distribution and Damage Mycterothrips gongshanensis is prevalent in tea-growing areas of Yunnan, causing outbreaks in some tea gardens. The adult and nymph stages hide in the crevices between buds and leaves or at the tips and edges of the first leaf below the bud, feeding on the sap of young shoots and tender buds. Initially, the tips and edges of the affected leaves show yellow spots, which then gradually develop into brown patches. The buds and leaves become deformed and curled, the internodes shorten, and their growth slows down. Severe cases result in the easy detachment of leaves upon slight touch, leading to leaf fall and bare shoots, significantly affecting tea yield and quality, and potentially causing substantial economic losses in summer and autumn tea production. Damage caused by Mycterothrips…