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Larval parasitoids of Monochamus alternatus and M. saltuarius (Coleoptera: Cerambycidae), vectors of pine wilt disease in South Korea
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- URLhttps://db.koreascholar.com/Article/Detail/334414
Beetles of the genus Monochamus Dejean (Coleoptera: Cerambycidae) are the most important vectors of the pine woodnematode (PWN), Bursaphelenchus xylophilus (Steiner & Buhrer) (Nematoda: Aphelenchoididae). The most efficient wayto control pine wilt disease is to decrease the population levels of the vector Monochamus beetles. Specific and efficientnatural enemies would be an interesting and environmental-friendly option. From 2016 to 2017, we investigated on thelarval parasitoids associated with M. alternatus Hope and M. saltuarius Gebler using the sentinel logs (Pinus koraiensis)in South Korea. As results of this work, we report two larval ectoparasitoids, Spathius verustus Chao and Cyanopterusflavator (Fabricius) (Hymenoptera: Braconidae) from six survey sites. Each parasitoid was parasitized up to 58.2% and26.3% on 1st and 2nd instar larvae of Monochamus beetles, respectively. These parasitoids are likely to be highly efficientas bio-control agents. Morphological characters with illustration and some biological information of them are provided.
