Preliminary survey of indigenous parasites associated with Phyllocnistis citrella Stainton (Lepidoptera, Gracillariidae) in Jeju, Korea

In order to identify the parasitoids of Phyllocnistis citrella Stainton [commonly known as the citrus leafminer (CLM)], we collected CLM larvae and pupae in the Seogwipo area of Jeju-do, identified parasitoid species, and determined parasitism rates. In May 2014, nine parasitoids were identified from the CLM larvae and pupae that infested 300 fresh citrus leaves, yielding a parasitism rate of 3.03%. In August 2014, 53 parasitoid wasps emerged from 203 collected CLM larvae and pupae, indicating that the parasitism rate rose to 25.84%. The parasitoid wasps observed in May 2014 consisted of five individuals of Sympiesis sp. 1 (Eulophidae), one Pnigalio sp. 1 (Eulophidae), and three Aphelinus sp. 1 (Aphelinidae). The highest proportion of the parasitic wasps that emerged in August 2014 were Sympiesis sp. 1 (n = 49), followed by Quadrastichus sp. 1 (Eulophidae; n = 4). This study documents the seasonal parasitism rate of parasitic wasps and basic characteristics of each parasitoid in Korea.