Journal
AGRONOMY-BASEL
Volume 12, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/agronomy12102588
Keywords
white-back planthopper; neonicotinoid insecticides; organophosphorus insecticides; carbamate insecticides; pyrethroid insecticides; insecticide resistance
Categories
Funding
- National Natural Science Foundation of China [32102263]
- Youth Talent Project of Hubei Education Department [Q20211301]
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This study analyzed the dose responses of 58 field populations of the white-backed planthopper in Central China to 7 insecticides. The results showed that these field populations exhibited moderate levels of resistance to multiple insecticides.
The white-backed planthopper Sogatella furcifera (Horvath) is an important pest on rice plants throughout Asia. The application of chemical insecticides is still the main approach to suppressing the field population of S. furcifera. However, misuse of chemical insecticides has promoted the development of insecticide resistance in this insect pest. Thus, in the present study, dose responses of 58 field populations of S. furcifera to 7 insecticides were analyzed by rice-stem dipping from 2011 to 2021 in Central China. The results indicated that field populations of S. furcifera showed moderate levels of resistance to nitenpyram (RR = 1.7-17.8-fold), thiamethoxam (RR = 1.4-25.8-fold), dinotefuran (RR = 1.5-25.3-fold), clothianidin (RR = 2.1-12.5-fold), chlorpyrifos (RR = 1.1-56.6-fold), etofenprox (RR = 1.1-14.8-fold) and isoprocarb (RR = 1.4-11.5-fold). The results presented here will be beneficial to improve our ability to identify and predict insecticide resistance, make better control recommendations and prevent further insecticide resistance development.
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