日本食蚧蚜小蜂对橡副珠蜡蚧的控制作用研究
Research on the control of Parasaissetia nigra Nietner by Coccophagus japonicus Compere
吴晓霜1, 2** 牛黎明1 符悦冠1 陈俊谕1 韩冬银1 李 磊1 吴琦琦1, 2
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DOI：10.7679/j.issn.2095-1353.2019.026
作者单位：1. 中国热带农业科学院环境与植物保护研究所, 海口 571101；2. 海南大学热带农林学院, 海南 570228
中文关键词： 日本食蚧蚜小蜂；橡副珠蜡蚧；温度；功能反应；干扰效应
英文关键词： Coccophagus japonicus Compere; Parasaissetia nigra Nietner; temperature; functional response; interference effect
中文摘要：
【目的】 为了明确日本食蚧蚜小蜂Coccophagus
japonicus Compere对橡副珠蜡蚧Parasaissetia nigra Nietner的控害潜能。【方法】 在18、21、24、27、30、33 ℃条件下研究了日本食蚧蚜小蜂对橡副珠蜡蚧3龄若虫的寄生功能反应及27 ℃条件下该蜂自身的干扰效应。【结果】 该蜂的寄生功能反应符合Holling-Ⅱ和Holling-Ⅲ模型，但各温度间功能反应的参数存在差异，其中以瞬时攻击率/处理时间（a¢/Th）为评价指标，在18-33 ℃范围内，在24 ℃时寄生效能最大，为53.86；日本食蚧蚜小蜂个体间存在干扰效应，随着自身密度增大，相互干扰作用增强，在27 ℃时，Hassell模型E = QP-m能够很好的反映出不同寄生蜂密度对橡副珠蜡蚧的寄生情况。【结论】 日本食蚧蚜小蜂对橡副珠蜡蚧3龄若虫有较好的控害能力。
英文摘要： [Objectives] To determine the
potential of the parasitoid Coccophagus japonicus Compere as a
biological control for Parasaissetia nigra Nietner. [Methods] The functional responses
of C. japonicus to
the 3rd instar of P. nigra were studied at 18, 21, 24, 27, 30
and 33 ℃, respectively, and the
effect of intra-specific competition on the
predatory efficiency of C. japonicus was also studied at 27 ℃. [Results] The functional responses of C. japonicus to the 3rd instar of P. nigra conformed to the Holling II and Holling-Ⅲ equations, but the parameters of the functional response
varied with temperature. In the range of 18 to 33 ℃, parasitic
efficiency, which was evaluated by the ratio of instantaneous attack rate to
handing time (a¢/Th), was highest (53.86)
at 24 ℃. Intra-specific competition between individuals of C. japonicus increased with density. Parasitism under different densities of C. japonicus at 27 ℃ could be modelled by the Hassell equation (E = QP-m). [Conclusion] C. japonicus has the potential to be an effective biological
control for the 3rd instar of P. nigra.