| 【Objective】The strategy and cost of weed control in the main tea producing areas of Guangdong Province
were clarified, which provides a reference for the research, improvement and promotion of weed management technologies.【Method】Through questionnaire survey and field visits, the weed control methods, frequency, costs and expected costs
adopted by tea enterprises (tea farmers) in the main tea producing areas of Guangdong Province，as well as the awareness
and acceptance of green weed management technologies were investigated.【Result】The results showed that, in the main
tea producing areas of Guangdong Province, the dominant strategy was artificial weeding (93.94%), followed by mechanical
weeding (42.93%) and chemical weeding (8.59%), while green weeding control technologies such as straw mulching, weed cloth
mulching and intercropping green manure only accounted for 4.55%-7.07%. The average annual cost of weed management was
11 507.55 yuan/hm2 and the average frequency of weeding was 4.16 times. The average annual cost of weed management was
expected to be 6 512.55 yuan/hm2. Among all weed control technologies，the annual average cost of weed control with pure
chemical pesticides was the lowest(about 2, 805 yuan/hm2) and the annual average cost of pure artificial weed control was the
highest (about 12 525 yuan/hm2). The costs of artificial weeding + green manure，artificial weeding + plastic film (weed control
cloth) and other green weed control modes were between 7,500 and 8,985 yuan/hm2. The acceptance of green weed management
technologies was 84%，while the actual utilization rate was less than 10%.【Conclusion】Artificial weeding with high cost is
the dominant weed control method in the main tea producing areas of Guangdong Province. Tea enterprises (tea farmers) have
high willingness to accept green weed management technologies, but the actual utilization rate is low. Therefore, it is necessary
to further simplify the implementation difficulty of the existing green weed management technologies, formulate weed control
regulations and strengthen the publicity and promotion of green weed management technologies. |
