Infectivity of entomopathogenic nematode Steinernema carpocapsae Pocheon strain 
(Nematoda: Steinernematidae) on the green peach aphid Myzus persicae 
(Hemiptera: Aphididae) and its parasitoids

Park, H. W.; Kim, H. H.; Cho, M. R.; Kang, T. J.; Ahn, Seung-Joon; Jeon, S. W.; Choo, H. Y.

doi:10.1080/09583157.2013.786022

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Infectivity of entomopathogenic nematode Steinernema carpocapsae Pocheon strain (Nematoda: Steinernematidae) on the green peach aphid Myzus persicae (Hemiptera: Aphididae) and its parasitoids

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Park, H. W., Kim, H. H., Cho, M. R., Kang, T. J., Ahn, S.-J., Jeon, S. W., et al. (2013). Infectivity of entomopathogenic nematode Steinernema carpocapsae Pocheon strain (Nematoda: Steinernematidae) on the green peach aphid Myzus persicae (Hemiptera: Aphididae) and its parasitoids. Biocontrol Science and Technology, 23(6), 637-645. doi:10.1080/09583157.2013.786022.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-46C4-9

Abstract

Infectivity of entomopathogenic nematode (EPN) Steinernema carpocapsae Pocheon strain on the green peach aphid Myzus persicae and its parasitic wasps (e.g., Aphidius colemani, Aphidius gifuensis and Diaeretiella rapae) was evaluated under laboratory conditions. Infective juveniles (IJs) of S. carpocapsae Pocheon strain had low infectivity against nymph and adult stages of M. persicae, showing 2% and 6.7% of mortality, respectively. Application of the EPNs had little effect on mummies caused by the three parasitoid species, allowing them to remain intact. No IJ invaded the host, regardless of EPN application rate. The parasitoid emergence from mummies ranged from 80% to 85% in the presence of EPN while 79–86% was recorded in the absence of EPN. However, the presence of the IJs reduced oviposition by the three parasitoid species, decreasing the rate up to 59% when the nematodes were applied before parasitoid release, while little difference in oviposition was observed when nematodes were applied after parasitoid release.