Use of banker plant system for sustainable management of the most important insect pest in rice fields in China.
Use of banker plant system for sustainable management of the most important insect pest in rice fields in China.
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DOI：
10.1038/srep45581
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发表时间：
2017-04-03
影响因子：
4.6
通讯作者：
Lu Z
中科院分区：
文献类型：
--
作者：
Zheng X;Lu Y;Zhu P;Zhang F;Tian J;Xu H;Chen G;Nansen C;Lu Z
为了满足世界粮食需求，对可持续虫害管理做法的需求越来越大。本研究描述了亚洲稻区最重要的水稻害虫--褐飞虱可持续管理的“银行植物系统”的补充实验室和田间研究结果。银行家种植系统包括在稻田旁边种植一种草本植物--莱西亚·萨亚努卡。斑潜蝇L.sayanuka是飞虱的寄主植物。褐飞虱是一种卵寄生蜂，寄生在褐飞虱和褐飞虱的卵上，通过种植褐飞虱和褐飞虱，可以提高卵寄生率和持久性。实验室研究结果表明，褐飞虱在水稻上不能完成生活史，褐飞虱在水稻上也不能完成生活史。因此，种植美洲斑潜蝇并不会增加稻田受飞虱危害的风险。田间试验结果表明，与不设置围栏栽培的对照稻田相比，围栏栽培的稻田褐飞虱密度显著降低。
To meet the World’s food demand, there is a growing need for sustainable pest management practices. This study describes the results from complementary laboratory and field studies of a “banker plant system” for sustainable management of the rice brown planthopper (BPH) (Nilaparvata lugens Stål) – the economically most important rice pest in Asian rice growing areas. The banker plant system consisted of planting a grass species, Leersia sayanuka, adjacent to rice fields. L. sayanuka is the host plant of a planthopper, Nilaparvata muiri. An egg parasitoid, Anagrus nilaparvatae, parasitizes eggs of both BPH and N. muiri, and its establishment and persistence are improved through plantings of L. sayanuka and thereby attraction of N. muiri. Laboratory results showed that BPH was unable to complete its life cycle on L. sayanuka, and N. muiri could not complete its life cycle on rice. Thus, planting L. sayanuka did not increase the risk of planthopper damage to rice fields. Field studies showed that BPH densities were significantly lower in rice fields with banker plant system compared to control rice fields without banker plant system.