배추좀나방, 담배거세미나방 및 파밤나방에 대한 한국산 곤충병원성 선충의 병원성 = Pathogenicity of Korean Entomopathogenic Nematodes on Plutella xylostella, Spodoptera litura and Spodoptera exigua

다국어 초록 (Multilingual Abstract)

Mortality of diamondback moth (Plutella xylostella L.), tobacco cutworm (Spodoptera litura F.), and beet armyworm (Spodoptera exigua H.) by Korean entomopathogenic nematodes (Steinernematid and Heterorhabditid) was investigated in laboratory. Six effective strains against diamondback moth, tobacco cutworm, and beet armyworm, Steinernema sp. GSNUS-3, Steinernema sp. GSNUS-4, Steinernema sp. GSNUS-6, Steinernema sp. GSNUS-10, Steinernema sp. GSNUS-14, and Heterorhabditis sp. GSNUH-1 were screened from petri dish assays. Mortality of these nematodes were over 80% after 5 days from infective juveniles inoculated. Mortality of caterpillars by Steinernema was higher than Heterorhabditis. And pathogenicity of Steinernema was more effective against diamondback moth than tobacco cutworm and beet armyworm. But pathogenicity of Heterorhabditis was more effective against tobacco cutworm and beet armyworm than diamondback moth. These nematodes were also effective against one or mixed outbreak.