Abstract
The Nilaparvata lugens (Stål) is a major rice pest in Asia. Nitenpyram is a novel neonicotinoid insecticide developed by Takeda Chemical Industry Co., Ltd. The effects of sublethal concentration (LC30) of this insecticide on life-table parameters and wing formation of N. lugens were studied in the laboratory. The results showed that nitenpyram could reduce the fecundity of N. lugens to a great extent and demonstrated further activity against this pest in addition to direct toxicity. The fecundity (eggs per female) of N. lugens treated with a sublethal concentration of nitenpyram was 75.4% of the control in macropterous cohorts, and 69.8% in brachypterous cohorts. A sublethal concentration of nitenpyram showed the significant induction of macropterous adults in both macropterous and brachypterous cohorts, which are important in the control of N. lugens, particularly in the prediction of emigrating populations in newly colonized areas.
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