Population Dynamics and Control Strategy of Cacopsylla chinensis on Pyrus bretschneideri in Yuncheng(China)
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摘要: 中国梨喀木虱是梨树上一种重要的刺吸式寡食性害虫，本文于2018-2019年对山西省运城市酥梨产区中国梨喀木虱消长动态进行系统调查，明确其种群消长规律.结果表明，中国梨喀木虱卵量出现3次高峰，分别为3月上旬、5月上中旬和6月下旬至7月上旬；若虫盛发期出现两次，为4月中下旬和6月上中旬，其中以6月中旬为害最为严重；越冬代出蛰期在3月上中旬；第一代成虫发生高峰期为5月上中旬.针对中国梨喀木虱的种群消长动态，本文提出以"两防一控"为核心的防控对策，为山西运城地区中国梨喀木虱的防控治理提供指导依据.Abstract: Cacopsylla chinensis is a monophagous sucking pest on pear trees. The authors of this paper investigated the population dynamics of C.chinensison Pyrus bretschneideri in Yuncheng, Shanxi from 2018 to 2019. The results showed that the number of C. chinensis eggs had two peaks, appearing from early to mid-May and from late June to early July. C. chinensis nymphs peaked from mid-April to late April and from early to mid-June.The hibernation period of the overwintering adults ended from early March to mid-March, and the first generation of adults occurred from early May to mid-May.Taking the characteristics of C. chinensis into consideration, a control strategy of "twice control and one prevention" is proposed, which provides a guiding basis for the integrated insect management in pear orchards.
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Key words:
- Cacopsylla chinensis /
- population dynamics /
- control strategy .
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