Laboratory virulence and field efficacy of different Heterorhabditis bacteriophora strains against Tetramoera schistaceana

文献类型: 外文期刊

第一作者: Yue, Jianjun

作者: Yue, Jianjun;Bai, Cheng;Long, Haibo;Yue, Jianjun;Bai, Cheng;Long, Haibo;Yue, Jianjun;Bai, Cheng;Long, Haibo;Yue, Jianjun;Bai, Cheng;Long, Haibo

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关键词: biological control;entomopathogenic nematode;Hainan Island;sugarcane;yellow mealworm

期刊名称:RUSSIAN JOURNAL OF NEMATOLOGY ( 影响因子:0.286; 五年影响因子:0.464 )

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收录情况: SCI

摘要: Sugarcane is one of the most valuable economic crops worldwide. The yellow mealworm, Tetramoera schistaceana (Lepidoptera: Tortricidae: Olethreutinae), is a serious insect pest for sugarcane plants on Hainan Island where the pest often causes serious economic loss. However, there is a dearth of information concerning the control of this pest with entomopathogenic nematodes (EPN). In the present study, we compared laboratory virulence of four Heterorhabditis bacteriophora isolates (Hb SD, Hb I, Hb II and Hb III) toward T. schistaceana. Initial results showed that Hb SD isolates was more potent. Next Hb SD was further tested for field efficacy. In the first trial, survival of T. schistaceana following application of nematode infected cadavers was 61% lower compared with the untreated control. Similar results were obtained in a second trial (57% lower than the untreated control). Our results demonstrated that application of nematode infected host cadavers could cause a significant reduction in the pest population. Therefore, we conclude that Hb SD had an excellent ability for suppression of T. schistaceana in sugarcane.

分类号: Q18

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