亚致死浓度吡虫啉对南方小花蝽捕食西花蓟马能力的影响

doi:10.13292/j.1000-4890.202506.009

生态学杂志 ›› 2025, Vol. 44 ›› Issue (6): 1802-1811.doi: 10.13292/j.1000-4890.202506.009

亚致死浓度吡虫啉对南方小花蝽捕食西花蓟马能力的影响

李宜儒^1,2,胡英¹,张薄¹,杨念¹,李加灿¹,张金龙¹,陈国华¹,陈婷^3*,张晓明^1*

（¹云南农业大学植物保护学院，云南生物资源保护与利用国家重点实验室，昆明 650201； ²云南省农业科学院农业环境资源研究所，昆明 650201； ³广东省农业科学院植物保护研究所，广东省植物保护新技术重点实验室，广州 510640）

出版日期:2025-06-10 发布日期:2025-06-03

Effects of sublethal concentration of imidacloprid on the predation ability of Orius similis to Frankliniella occidentalis.

LI Yiru^1,2, HU Ying¹, ZHANG Bo¹, YANG Nian¹, LI Jiacan¹, ZHANG Jinlong¹, CHEN Guohua¹, CHEN Ting^3*, ZHANG Xiaoming^1*

(¹College of Plant Protection, Yunnan Agricultural University, State Key Laboratory of Yunnan Biological Resources Protection and Utilization, Kunming 650201, China; ²Institute of Agricultural Environmental Resources, Yunnan Academy of Agricultural Sciences, Kunming 650201, China; ³Guangdong Provincial Key Laboratory of High Technology for Plant Protection; Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China).

Online:2025-06-10 Published:2025-06-03

摘要/Abstract

摘要： 为明确亚致死浓度吡虫啉对南方小花蝽（Orius similis）控制西花蓟马（Frankliniella occidentalis）能力的影响，本研究采用胃毒法处理南方小花蝽，让其取食2种吡虫啉浓度（LC₁₀、LC₂₀）和清水处理后的西花蓟马，测定不同处理下南方小花蝽对西花蓟马的捕食量，利用功能反应模型探究吡虫啉对其捕食、寻找猎物能力的影响。结果表明：南方小花蝽雌成虫和西花蓟马同时经LC₁₀浓度吡虫啉处理后南方小花蝽雌成虫的捕食量18.4头，低于二者分别经LC₁₀浓度吡虫啉处理后的捕食量18.6和19.4头，均低于清水处理后南方小花蝽捕食清水处理后西花蓟马20.9头；2种亚致死浓度吡虫啉处理后南方小花蝽对相同浓度吡虫啉处理和清水处理后西花蓟马的捕食功能反应符合Holling II型；经LC₁₀、LC₂₀浓度吡虫啉处理后的南方小花蝽雌成虫对同一浓度吡虫啉处理后的西花蓟马的控害效能（α/T_h）随吡虫啉浓度升高而下降，分别为32.38、25.65；在一定的吡虫啉浓度范围内，吡虫啉的施用会促进南方小花蝽的捕食能力，经清水处理后南方小花蝽3龄若虫对经LC₁₀浓度吡虫啉处理后西花蓟马的控害效能较其对清水处理后西花蓟马的控害效能提高2.89 d；吡虫啉的使用会影响南方小花蝽对猎物的搜寻能力，经2种吡虫啉浓度处理后的南方小花蝽雌成虫对同一浓度吡虫啉处理后的西花蓟马的搜寻效应分别从0.73和0.60下降至0.60和0.52。总之，吡虫啉会抑制南方小花蝽的捕食和搜寻能力。

关键词: 南方小花蝽, 西花蓟马, 吡虫啉, 捕食功能

Abstract: To clarify the effects of sublethal concentration of imidacloprid on the ability of Orius similis to control Frankliniella occidentalis, the stomach toxicity method was used to treat O. similis, which was then fed F. occidentalis treated with two imidacloprid concentrations (LC₁₀ and LC₂₀) and water. The predation rate of O. similis on F. occidentalis under different treatments was measured. The functional response model was applied to explore the effects of imidacloprid on predation and prey searching ability. The results showed that the predation rate of O. similis on F. occidentalis was 18.4 individuals when both were treated with LC₁₀ imidacloprid, which was lower than that of O. similis or F. occidentalis treated with LC₁₀ imidacloprid at 18.6 and 19.4 individuals, respectively. The predation rate of O. similis on F. occidentalis was 20.9 individuals when treated with water. The functional response of O. similis treated with different concentrations of imidacloprid to F. occidentalis treated with the same concentration of imidacloprid, as well as to F. occidentalis treated with water, conformed to the Holling II type. The control efficiency (α/T_h) of adult female O. similis on F. occidentalis treated with both-concentrations of imidacloprid decreased with increasing imidacloprid concentration, with value of 32.38 and 25.65, respectively. Within a certain concentration range, the application of imidacloprid promoted the predation capacity of O. similis. The control efficiency of the 3-rd instar nymphs O. similis on F. occidentalis treated with LC₁₀ imidacloprid was 2.89 days higher than that of F. occidentalis treated with water. Imidacloprid affected the searching capacity of O. similis. The searching effects of adult female O. similis treated with two imidacloprid concentrations on F. occidentalis treated with the same concentration of imidacloprid decreased from 0.73 and 0.60 to 0.60 and 0.52, respectively. Overall, the application of imidacloprid inhibited the searching and predation efficiency of O. similis.

Key words: Orius similis, Frankliniella occidentalis, imidacloprid, predatory capacity

李宜儒, 胡英, 张薄, 杨念, 李加灿, 张金龙, 陈国华, 陈婷, 张晓明. 亚致死浓度吡虫啉对南方小花蝽捕食西花蓟马能力的影响[J]. 生态学杂志, 2025, 44(6): 1802-1811.

LI Yiru, HU Ying, ZHANG Bo, YANG Nian, LI Jiacan, ZHANG Jinlong, CHEN Guohua, CHEN Ting, ZHANG Xiaoming. Effects of sublethal concentration of imidacloprid on the predation ability of Orius similis to Frankliniella occidentalis.[J]. Chinese Journal of Ecology, 2025, 44(6): 1802-1811.

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亚致死浓度吡虫啉对南方小花蝽捕食西花蓟马能力的影响

Effects of sublethal concentration of imidacloprid on the predation ability of Orius similis to Frankliniella occidentalis.

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