State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-Sen University, Guangzhou 510275, China.
J Econ Entomol. 2013 Feb;106(1):10-5. doi: 10.1603/ec11430.
Nilaparvata lugens (Stål) is a major rice pest in Asia Paichongding is a novel neonicotinoid insecticide developed in 2008. The effects of this insecticide on life-table parameters and wing formation of N. lugens were examined in the laboratory. The results showed that paichongding could significantly reduce the fecundity of N. lugens, demonstrating further activity against this pest in addition to direct toxicity. The fecundity of N. lugens treated with LC20, LC30, LC40, and LC50 of paichongding were 87.44, 79.63, 63.31, and 52.66% of the control, respectively. The relative fitness values were 0.55, 0.41, 0.21, and 0.09, respectively, for LC20, LC30, LC40, and LC50 paichongding treatments. Sublethal concentrations of paichongding showed significant induction of macropterous offspring, which would be one kind of coping mechanism of N. lugens response to insecticide stress.
褐飞虱（Nilaparvata lugens）是亚洲地区的一种主要水稻害虫，而吡虫·噻虫嗪是 2008 年研发的一种新型新烟碱类杀虫剂。本研究在室内条件下，测定了吡虫·噻虫嗪对褐飞虱实验种群生命表参数和翅型分化的影响。结果表明，吡虫·噻虫嗪能显著降低褐飞虱的产卵量，表明其对褐飞虱除了具有直接毒力外，还有进一步的杀虫活性。LC20、LC30、LC40 和 LC50 处理的褐飞虱的产卵量分别为对照的 87.44%、79.63%、63.31%和 52.66%。相对适合度值分别为 0.55、0.41、0.21 和 0.09。亚致死浓度的吡虫·噻虫嗪能显著诱导产生长翅型若虫，这可能是褐飞虱对药剂胁迫的一种应对机制。
