Fu Zuying, Cheng Yuanrun, Cui Yifan, Xiong Changyu, Cao Ziyu, Wang Ying, Zhang Rong, Liu Chang, Sun Wei, Ban Liping, Tan Yao, Wei Shuhua
Institute of Plant Protection, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China.
College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010010, China.
Insects. 2025 Feb 21;16(3):236. doi: 10.3390/insects16030236.
(Bagnall) is one of the most important pests harming alfalfa ( L.) in Ningxia. In the field, (Poppius) is abundant. It has a high search efficiency and consumption rate of prey on a wide range of thrips and is often used as a biological control agent for these insects. To understand the predatory function and biological control potential of on , the predatory ability of adults of on second-instar larvae and adults of was measured under indoor conditions, and the Holling II and Hassell-Varley models were fitted to calculate the predatory function response, search efficiency, intraspecific interference, and predation preference of on second-instar larvae and adults of . Our results showed that the predatory ability of on second-instar larvae of was 78.62, and the theoretical maximum daily predation was 76.92. The predatory ability of on adults of was 52.79, and the theoretical maximum daily predation was 52.62. The daily predation of was positively correlated with prey density and negatively correlated with search efficiency. The rate of predatory action on prey decreased with an increasing density, while the intensity of apportioned competition increased with an increasing density. The results of the prey preference experiment showed that the preference of for second-instar larvae of was significantly higher than for adults of . In conclusion, the indoor experiment data can provide an effective reference for the use of to control infestation, providing an important biological control agent for controlling thrips.
（巴格纳尔）是宁夏危害苜蓿（L.）的最重要害虫之一。在田间，（波皮乌斯）数量众多。它对多种蓟马具有较高的捕食效率和猎物消耗率，常被用作这些昆虫的生物防治剂。为了解（某种昆虫，原文未明确写出具体中文名）对（另一种昆虫，原文未明确写出具体中文名）的捕食功能和生物防治潜力，在室内条件下测定了（某种昆虫）成虫对（另一种昆虫）二龄幼虫和成虫的捕食能力，并拟合了Holling II和Hassell-Varley模型来计算（某种昆虫）对（另一种昆虫）二龄幼虫和成虫的捕食功能反应、搜索效率、种内干扰和捕食偏好。我们的结果表明，（某种昆虫）对（另一种昆虫）二龄幼虫的捕食能力为78.62，理论最大日捕食量为76.92。（某种昆虫）对（另一种昆虫）成虫的捕食能力为52.79，理论最大日捕食量为52.62。（某种昆虫）的日捕食量与猎物密度呈正相关，与搜索效率呈负相关。随着（某种昆虫）密度的增加，对猎物的捕食作用率下降，而分摊竞争强度增加。猎物偏好实验结果表明，（某种昆虫）对（另一种昆虫）二龄幼虫的偏好显著高于对（另一种昆虫）成虫的偏好。总之，室内实验数据可为利用（某种昆虫）控制（另一种昆虫）的侵害提供有效参考，为防治（另一种昆虫）蓟马提供重要的生物防治剂。
