Zhu Yilin, Chi Yuanming, Yu Chen, Feng Mingyue, Li Maoqing, Chen Yanyu, Shi Wangpeng
Sanya Institute of China Agricultural University, Sanya, Hainan 572025, China.
Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, China.
J Econ Entomol. 2025 Feb 11;118(1):100-104. doi: 10.1093/jee/toae309.
Megalurothrips usitatus (Bagnall) (Thysanoptera: Thripidae) is an important pest of cowpeas, Vigna unguiculata (L.) Walp., and can cause severe damage to the crop. Lasioseius lindquisti (Tseng) (Acari: Blattisociidae) and Lasioseius scapulatus (Kennett) (Acari: Blattisociidae) are 2 mites used against M. usitatus in Hainnan, China. The functional responses of these mites were examined in the laboratory. Lasioseius lindquisti showed a type III functional response, with a maximum prey consumption of 22.38 ± 0.63 per day. Its optimal search density for each unit in this experiment was 10.27 ± 0.50 per day. Lasioseius scapulatus showed a type II functional and an attack rate on 1st instars of M. usitatus of 0.83 ± 0.23. The handling time (h) of L. scapulatus was 0.074 ± 0.018 (means ± SE), while the maximum attack rate (T/Th) of adult females on 1st instar thrips was 13.51. Our results showed that both L. lindquisti and L. scapulatus are potentially useful predators of M. usitatus.
豆蓟马（Megalurothrips usitatus (Bagnall)，缨翅目：蓟马科）是豇豆（Vigna unguiculata (L.) Walp.）的一种重要害虫，会对该作物造成严重损害。林氏懒甲螨（Lasioseius lindquisti (Tseng)，蜱螨亚纲：皮甲螨科）和肩毛懒甲螨（Lasioseius scapulatus (Kennett)，蜱螨亚纲：皮甲螨科）是中国海南用于防治豆蓟马的两种螨类。在实验室中研究了这些螨类的功能反应。林氏懒甲螨表现出III型功能反应，每天最大猎物消耗量为22.38±0.63。在本实验中，其每个单位的最佳搜索密度为每天10.27±0.50。肩毛懒甲螨表现出II型功能反应，对豆蓟马一龄若虫的攻击率为0.83±0.23。肩毛懒甲螨的处理时间（h）为0.074±0.018（平均值±标准误），而成虫雌螨对一龄蓟马的最大攻击率（T/Th）为13.51。我们的结果表明，林氏懒甲螨和肩毛懒甲螨都是防治豆蓟马的潜在有效捕食者。
