First Report of Field Resistance to Afidopyropen, the Novel Pyropene Insecticide, on Bemisia tabaci Mediterranean (Q Biotype) from China

Agronomy

Wunan Che¹  Bingli Gao²  Cheng Qu²  Xuan Zhou²  Chen Luo²  Ran Wang² 

[1] Department of Pesticide Sciences, Shenyang Agricultural University, Shenyang 110866, China;Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;

关键词: Bemisia tabaci;    afidopyropen;    sulfoxaflor;    cross-resistance;    inheritance;    resistance management;   

DOI  :  10.3390/agronomy12030724

来源: DOAJ

【 摘 要 】

Afidopyropen, a novel biopesticide, is derived from Aspergillus fumigatus, a fungus, and shows promise as a novel insecticidal agent for the management of the whitefly pest Bemisia tabaci in horticultural and economical crop production. In the present work, we monitored the susceptibilities of B. tabaci to afidopyropen in 18 field populations, sampled from 9 provinces of China, and found that, in comparison with the susceptible strain (MED-S), B. tabaci from most field populations were highly susceptible, except for the Haidian population (HD) which exhibited an approximately 40-fold increase in resistance. The HD population also displayed significant cross-resistance to sulfoxaflor (14.5-fold) but little cross-resistance to cyantraniliprole, flonicamid, imidacloprid, pymetrozine, and thiamethoxam. Afidopyropen resistance of the HD population was determined to be incomplete dominant and autosomal, and synergism assays demonstrated that P450 monooxygenases could contribute to the field-evolved afidopyropen resistance observed in the HD population. These results will further our understanding of the molecular underpinnings of insecticide resistance in B. tabaci and can inform the development of field-based pest control tactics to slow the development of afidopyropen resistance and to control whiteflies more sustainably.

【 授权许可】

Unknown