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ISSN : 1225-0171(Print)
ISSN : 2287-545X(Online)
Korean Journal of Applied Entomology Vol.64 No.3 pp.203-207
DOI : https://doi.org/10.5656/KSAE.2025.07.0.026

Nematicidal Activities of Entomopathogenic Fungal Extracts against Pine Wood Nematodes

Eunji Yu, Junheon Kim*
Forest Entomology and Pathology Division, National Institute of Forest Science, Seoul 02455, Korea

Abstract

Pine wilt disease, caused by infection with the pinewood nematode, Bursaphelenchus xylophilus, causes significant environmental damage to pine forest ecosystems. In This study, we evaluated the nematicidal activities of seven entomopathogenic fungal extracts to develop nematicide against B. xylophilus. The fungi were cultured and extracted, their nematicidal activities were assessed in 96-well plates at various concentrations. The Cordyceps pruinosa extract showed the highest mortality rate of 84.7% at 5 mg/mL, with an LC50 value of 0.130 mg/mL. The Ophiocordyceps nutans extract induced the mortality rate of 76.2%. The mortality rates of the other five fungal extracts were ranged from 42.8% to 62.0%. The high nematicidal activity of the C. pruinosa extract suggests its potential for developing biological nematicides, pending further identification of the active compounds.

초록

Vol. 40 No. 4 (2022.12)

Journal Abbreviation Korean J. Appl. Entomol.
Frequency Quarterly
Doi Prefix 10.5656/KSAE
Year of Launching 1962
Publisher Korean Society of Applied Entomology
Indexed/Tracked/Covered By