二化螟
草螟科
阿维菌素
生物
毒死蜱
生殖器鳞翅目
毒理
有害生物分析
藏红花
杀虫剂
农学
植物
作者
Chang-Chao Su,Chengyue Li,Tingwei Cai,Yuanli Xie,Shun He,Kangsheng Ma,Hu Wan,Huazhong Zhou,Jianhong Li
摘要
Abstract Chilo suppressalis is a highly destructive insect pest of rice crops. Chemical insecticides have been used as an effective method for controlling this pest. In this study, we evaluated the susceptibility of seven field populations of C. suppressalis from three regions in Hubei Province, China, to four different insecticides over a period of 4 years (2019–2022). Our results showed that the populations of C. suppressalis in these areas have evolved low to high levels of resistance to abamectin (Resistant Ratio, RR = 8.5–413.4). Furthermore, the field populations were susceptible to high levels of resistance to chlorantraniliprole (RR = 2.0–401.6) and showed moderate levels of resistance to triazophos (RR = 56.9–78.7) and chlorpyrifos (RR = 10.6–54.5). Correlation analysis indicated significant positive correlations between the susceptibility of abamectin and chlorantraniliprole and chlorpyrifos, as well as chlorpyrifos and chlorantraniliprole, and triazophos. This study provides valuable information on the current resistance status of field populations of C. suppressalis , which can aid in the judicious use of these insecticides and serve as an important reference for effective resistance management strategies.
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