广聚萤叶甲和豚草卷蛾对广西来宾豚草的联合控制作用
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国家重点基础研究发展计划(973计划)项目(2009CB119200);“十一五”国家科技支撑计划重大项目(2006BAD08A18)


Combined control of common ragweed, Ambrosia artemisiifolia with Ophraella communa and Epiblema strenuana in Laibin, Guangxi Province, China
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    摘要:

    【背景】 豚草已成功入侵广西来宾,对当地生物多样性、农业生产和居民健康造成了严重影响。广聚萤叶甲和豚草卷蛾均为豚草的重要专一性天敌,在湖南等地已有效抑制了豚草的扩散蔓延。【方法】 [JP3]为考查2种天敌在广西对豚草的联合控制作用,于2009年5月24日在广西来宾豚草入侵地区同时释放广聚萤叶甲和豚草卷蛾(2种天敌释放密度均为1170头·hm-2)。[JP]【结果】 至2009年8月29日释放区内豚草植株死亡率达98%以上,且天敌迅速向邻近豚草发生区扩散,2种天敌对扩散区豚草的控制率可达50%~60%。【结论与意义】2种天敌对豚草具有显著的控制效果,建议在广西大面积推广应用。

    Abstract:

    【Background】Common ragweed, Ambrosia artemisiifolia has successfully invaded Laibin, Guangxi, and it has impacted significantly local biodiversity, agricultural industry and resident′s health. Both Ophraella communa and Epiblema strenuana are important special natural enemies of A.artemisiifolia, and the two natural enemy species had suppressed the spread of A.artemisiifolia in Hunan Province, etc. 【Method】In order to explore the combined control effect of O.communa and E.strenuana on A.artemisiifolia, the two natural enemy species were released into the areas invaded by A.artemisiifolia in Laibin, Guangxi, on May 24, 2009 (densities of the two natural enemy species were 1170 individuals·hm-2). 【Result】The mortality of A.artemisiifolia plants was up to 98% on August 29, 2009, and the two natural enemy species spread to the adjacent areas invaded by A.artemisiifolia rapidly. The effect of the two natural enemy species on A.artemisiifolia was 50%~60% in the spread areas. 【Conclusion and significance】The two natural enemy species had a significant control effect on A.artemisiifolia, it′s suggested that biological control technique of A.artemisiifolia with O.communa and E.strenuana can be applied in Guangxi Province.

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周忠实,陈红松,郑兴汶,郭建英,万方浩.广聚萤叶甲和豚草卷蛾对广西来宾豚草的联合控制作用[J].生物安全学报中文版,2011,20(4):267-269

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