Brown planthoppers (Nilaparvata lugens) and white-backed planthoppers (Sogatella furcifera) are among the most destructive pests on rice. However, plant susceptibility genes have not yet been exploited for crop protection. Here we identified a leucine-rich repeat protein, OsLRR2, from susceptible rice varieties that facilitates infestation by brown planthopper N. lugens. Field trials showed that knockout of OsLRR2 significantly reduced BPH infestation and enhanced natural biological control by attracting natural enemies. Yield of a susceptible variety was increased by 18% in insecticide-treated plots that eliminated planthoppers and by 25% in untreated plots. These findings underscore the pivotal role of OsLRR2, offering a promising pathway for pest population suppression and rice yield increase.

褐飞虱 （Nilaparvata lugens） 和白背飞虱 （Sogatella furcifera） 是水稻上最具破坏性的害虫之一。然而，植物易感基因尚未被用于作物保护。在这里，我们从易感水稻品种中鉴定出一种富含亮氨酸的重复蛋白 OsLRR2，它促进了褐飞虱 N. lugens 的侵染。田间试验表明，敲除 OsLRR2 可显着减少 BPH 侵染，并通过吸引天敌增强自然生物控制。在消除飞虱的杀虫剂处理地块中，易感品种的产量增加了 18%，在未经处理的地块中增加了 25%。这些发现强调了 OsLRR2 的关键作用，为抑制害虫种群和提高水稻产量提供了一条有前途的途径。