| 黄楚阳,曾莉玲,胡禹夏,阙心怡,王兴民,苏玉龙,2026,新平刀角瓢虫（鞘翅目：瓢虫科）的生物学特性研究[J].环境昆虫学报,(4):1242-1248 |
| 新平刀角瓢虫（鞘翅目：瓢虫科）的生物学特性研究 |
| Biological characteristics of Serangium xinpingensis Huang & Wang 2024 (Coleoptera: Coccinellidae) |
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| DOI：10.3969/j.issn.1674-0858.2026.04.24 |
| 中文关键词: 刀角瓢虫 烟粉虱 生命表 形态特征 生物防治 |
| 英文关键词:Serangium xinpingensis Huang & Wang Bemisia tabaci life table morphological characteristics biological control |
| 基金项目:云南省烟草公司科技重大项目计划项（2023530000241004）；广州市科技计划项目（202206010113） |
| 作者 | 单位 | | 黄楚阳 | 1. 云南省烟草玉溪市公司,云南玉溪 653100；2. 华南农业大学植物保护学院,生物防治教育部工程研究中心 & 昆虫学系,广州 510642 | | 曾莉玲 | 2. 华南农业大学植物保护学院,生物防治教育部工程研究中心 & 昆虫学系,广州 510642 | | 胡禹夏 | 2. 华南农业大学植物保护学院,生物防治教育部工程研究中心 & 昆虫学系,广州 510642 | | 阙心怡 | 2. 华南农业大学植物保护学院,生物防治教育部工程研究中心 & 昆虫学系,广州 510642 | | 王兴民 | 2. 华南农业大学植物保护学院,生物防治教育部工程研究中心 & 昆虫学系,广州 510642 | | 苏玉龙 | 1. 云南省烟草玉溪市公司,云南玉溪 653100 |
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| 中文摘要: |
| 【目的】以云南干热河谷地区新发现的烟粉虱Bemisia tabaci (Gennadius)天敌瓢虫——新平刀角瓢虫Serangium xinpingensis Huang & Wang为研究对象，探究其生物学特性，为新平刀角瓢虫防控烟粉虱提供理论依据。【方法】本研究在温度（26 ± 1）℃、RH （75 ± 5）%、光周期14 L∶10 D条件下对新平刀角瓢虫的形态特征、生长发育历期和繁殖力进行研究，并编写种群生命表。【结果】以烟粉虱4龄若虫为食的新平刀角瓢虫世代历期为15.14 d，产卵前期为4.57 d，单雌平均产卵量为862.5粒，成虫平均寿命为67.05 d。新平刀角瓢虫种群的净增殖力（R0）为189.5224，平均世代历期（T）为73.4263 d，内禀增长率（rm）为0.0714，周限增长率（λ）为1.0740。【结论】新平刀角瓢虫羽化后需要经过一段时间的补充营养卵才能发育成熟，开始产卵后日均产卵量波动明显，并在第15天达到第1个生殖高峰，高峰期3~4 d，42 d达到第2个生殖高峰，随后波动下降，在130 d趋于结束；在进入产卵高峰期之前逐日存活率较高，此后缓慢下降；成虫寿命长，产卵量大，世代繁殖周期较短，具有很高的控害潜力。 |
| 英文摘要: |
| 【Aim】Serangium xinpingensis Huang &Wang is a new natural enemy ladybird of Bemisia tabaci (Gennadius) found in dry-hot valley areas of Yunnan Province. This study determined the biological characteristics of S. xinpingensis to provide a theoretical basis for the control of B. tabaci. 【Methods】The morphological characteristics, development duration and fecundity of S. xinpingensis were observed under the condition of (26 ± 1) ℃, RH (75 ± 5) % and L∶D = 14∶10, and the life table parameters of S. xinpingensis were compiled. 【Results】The result showed that the average developmental duration of the S. xinpingensis feeding on the 4th nymphs of B. tabaci were 15.14 d, and the pre-oviposition period were 4.57 d, and the fecundity per female were 862.5 eggs, and the adult longevity were 67.05 d. The net reproductive rate R0 of S. xinpingensis population were 189.5224, the generation time T were 73.4263 d, and the intrinsic rate of increase rm were 0.0714, and the finite rate of increase λ were 1.0740. 【Conclusion】S. xinpingensis takes a period of complementary nutrition to reach sex maturation after emergence. The average daily amount of eggs fluctuated significantly after S. xinpingensis began to lay eggs, the period of reproduction reached the first peak on the 15th day, the peak time was 3~4 days, and then reached the second peak on the 42nd day, and finally the number of eggs fluctuated down and came to end on the 130th day. The survival rate of S. xinpingensis increased day by day before it entered the peak of fecundity, and then decreased slowly. It has a long adult life, a large number of eggs, and a short generation cycle, which has a high potential of pest control. |
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