Anhui Agricultural Science Bulletin >
2026 , Vol. 32 >Issue 2: 77 - 80
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2026.02.020
Occurrence pattern and integrated prevention and control strategies of Urostylis yangi on Castanea mollissima in the Qinling Mountains
Received date: 2025-03-18
Online published: 2026-01-22
This study based on the occurrence status and key biological characteristics of Urostylis yangi on Castanea mollissima in the Qinling Mountains, analyzing the aspects requiring improvement in the prevention and control of this pest and proposing targeted prevention and control strategies. The Castanea mollissima industry in the study area has developed rapidly and formed a complete industrial chain, while the widespread distribution of Urostylis yangi has restricted its further development. The pest has one generation per year with 5 instars of nymphs. Adults emerge from late May to early June, and mating and oviposition on the branches or fallen leaves of Castanea mollissima occur after emergence. This pest has a rapid population growth rate and mainly infests the tender tissues of Castanea mollissima, resulting in inhibited growth of the damaged shoots and even withering and death of branches in severe cases. The occurrence of Urostylis yangi is affected by environmental conditions, host plants and natural enemies. At present, the existing prevention and control system of the pest still had room for improvement in terms of monitoring and early warning systems, control methods, farmers’ cognitive level and control capability, as well as the connection and integration of integrated control technologies. Corresponding strategies were put forward as follows: establishing a monitoring network, introducing monitoring technologies such as sex pheromones, integrating modern information technologies including the Internet of Things (IoT) to build a monitoring information sharing platform; timely cleaning of overwintering sites for Urostylis yangi such as withered branches and fallen leaves in orchards, and the selection of physical measures (e.g., black light trap trapping) and biological pesticides (e.g., Bacillus thuringiensis) for control, constitute an integrated and environmentally friendly pest management strategy; organizing technical training courses and strengthening publicity and guidance by distributing promotional materials; optimizing the combination of multiple control technologies including biological, physical and agricultural measures, and establishing demonstration bases in major producing areas. This study provides a reference for the sustainable development of the Castanea mollissima industry and the integrated pest management (IPM) in the study area.
Wang Hongkuan , Liu Haihong , Shen Xuejian , Zhang Bo . Occurrence pattern and integrated prevention and control strategies of Urostylis yangi on Castanea mollissima in the Qinling Mountains[J]. Anhui Agricultural Science Bulletin, 2026 , 32(2) : 77 -80 . DOI: 10.16377/j.cnki.issn1007-7731.2026.02.020
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