Parasitoids of the eucalyptus gall wasp Leptocybe invasa (Hymenoptera: Eulophidae) in China

Author： Zheng Xia-Lin Huang Zong-You Dong Dan Guo Chun-Hui Li Jun Yang Zhen-De Yang Xiu-Hao Lu Wen

E-ISSN： 1776-1042|23|issue|58-58

ISSN： 1252-607x

Source： Parasite, Vol.23, Iss.issue, 2016-12, pp. : 58-58

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Abstract

Leptocybe invasa Fisher La Salle (Hymenoptera, Eulophidae) is an invasive pest in Eucalyptus plantations throughout the world. Potential biological control agents for L. invasa were investigated in the Fujian, Guangdong, Hainan, Guangxi, Jiangxi, and Sichuan provinces of China, where Eucalyptus spp. have been severely damaged by the eucalyptus gall wasp. Three hymenopteran parasitoids of L. invasa were identified: Quadrastichus mendeli Kim La Salle (Eulophidae), Aprostocetus causalis La Salle Wu (Eulophidae), and Megastigmus viggianii Narendran Sureshan (Torymidae); M. viggianii is newly recorded in China. The percentages of parasitization by Q. mendeli, A. causalis, and M. viggianii were 2.96%–19.53%, 2.30%–26.38%, and 24.93%, respectively. The longevity and body length of females were significantly greater than for males in A. causalis and M. viggianii. No males of Q. mendeli were found in China. These parasitoids could be used as biological agents for L. invasa in China.