文献类型： 外文期刊

作者： Zhu Fang-li ² ; Ren Shun-xiang ² ; Qiu Bao-li ² ; Huang Zhen ² ; Peng Zheng-qiang ¹ ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Plant & Environm Protect, Danzhou 571737, Peoples R China

2.S China Agr Univ, Minist Educ, Engn Res Ctr Biol Control, Dept Entomol, Guangzhou 510640, Guangdong, Peoples R China

关键词： Leptocybe invasa;Eucalyptus;susceptibility;gall volume;population dynamics

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2012 年 11 卷 12 期

页码：

收录情况： SCI

摘要： The blue gum chalcid, Leptocybe invasa Fisher & La Salle, invaded China in 2007 and has subsequently caused substantial damage to eucalyptus trees. In the current paper, we investigated the susceptibility of 10 Eucalyptus spp. and Eucahetus dunnii to L. invasa in the field, determined the density of galls as well as the gall volume on these tree species, and monitored the population dynamics of wasps in Hainan and Guangdong provinces of China. The order of susceptibility to L. invasa was Eucalyptus urophyllaxEucalyptus camaldulensis>E. urophylla (coppices)>Eucalyptus exserta> Eucalyptus grandisxE. urophylla in Hainan, and Eucalyptus propinqua>Eucalyptus saligna>E. exserta>Eucalyptus microcorys>Eucahetus dunnii>E. camaldulensis>Eucalyptus tereticornis>Eucalyptus robust in Guangdong, China. Although L. invasa generally damages the midribs and petioles of young leaves and the tender bark of twigs of eucalyptus, galls were not observed on leaves of E. microcorys, E. camaldulensis, or E. dunnii. Gall volume significantly differed among the tree species, and gall volume and wasp number were positively correlated. In Dongfang, Hainan Province, the overwintering period of L. invasa emergencing through the year was from the end of December to March of the next year, and the number of population was the greatest on E. urophyllaxE. camaldulensis, and the smallest on E. grandisxE. urophylla. In Guangzhou, Guangdong Province, L. invasa hardly emerged in winter from December to June of the next year, and the population was the greatest on E. propinqua, and the smallest on E. microcorys.