Reported Resistance Case(s)

Species: Megalurothrips usitatus

Order	Family	Common Name(s)	Group	Host
thysanoptera	thripidae	flower-dwelling thrips	AG	leguminous

Active Ingredient: emamectin benzoate

MOA: Chloride channel activators, Avermectins, Milbemycins
Group: ABM	CAS #: 137512-74-4	Shaugnessy Code: 122806

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G23605	2026	Lab selected*	China-- Hainan-- Ledong	Wang L, Yuan L, Wu H, Pu Y, Peng Z, Li F, Liang P, Zhang K, Wu S. (2026). Insecticide Resistance Dynamics and Spinosyn Cross-Resistance in Megalurothrips usitatus in Hainan, China.. Insects., 17 607.
G23606	2026	Lab selected*	China-- Hainan-- Lingshui	Wang L, Yuan L, Wu H, Pu Y, Peng Z, Li F, Liang P, Zhang K, Wu S. (2026). Insecticide Resistance Dynamics and Spinosyn Cross-Resistance in Megalurothrips usitatus in Hainan, China.. Insects., 17 607.
G23607	2026	Lab selected*	China-- Hainan-- sanya	Wang L, Yuan L, Wu H, Pu Y, Peng Z, Li F, Liang P, Zhang K, Wu S. (2026). Insecticide Resistance Dynamics and Spinosyn Cross-Resistance in Megalurothrips usitatus in Hainan, China.. Insects., 17 607.
G23466	2025	Field Evolved Resistance	China-- Guangdong-- Xuwen	Hongyi Cao, Jiangjiang Yuan, Yanran Wan, Yingxi Tang, Xiaobin Zheng, Jing Wang, Kanghua Qian, Jiuming Feng, Sirui Chen, Youjun Zhang, Qingjun Wu. (2025). Transcriptome analysis of insecticide resistance mechanisms in field populations of the bean flower thrips, Megalurothrips usitatus (Bagnall). Ecotoxicology and Environmental Safety, 298.
G23468	2025	Field Evolved Resistance	China-- Fujian-- Nanjing	Hongyi Cao, Jiangjiang Yuan, Yanran Wan, Yingxi Tang, Xiaobin Zheng, Jing Wang, Kanghua Qian, Jiuming Feng, Sirui Chen, Youjun Zhang, Qingjun Wu. (2025). Transcriptome analysis of insecticide resistance mechanisms in field populations of the bean flower thrips, Megalurothrips usitatus (Bagnall). Ecotoxicology and Environmental Safety, 298.
G23505	2025	Field Evolved Resistance	China-- Fujian-- Nanjing	Hongyi Cao, Jiangjiang Yuan, Yanran Wan, Yingxi Tang, Xiaobin Zheng, Jing Wang, Kanghua Qian, Jiuming Feng, Sirui Chen, Youjun Zhang, Qingjun Wu. (2025). Transcriptome analysis of insecticide resistance mechanisms in field populations of the bean flower thrips, Megalurothrips usitatus (Bagnall). Ecotoxicology and Environmental Safety, 298.

*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.