Effect of Inoculation Concentration on Pathogenicity, Development, Propagation and Body Length of Entomopathogenic Nematode, Steinernema arenarium (Nematoda: Steinernematidae)

Han, Gun-Yeong; DongWoon, Lee; Choo, Ho-Yul

doi:10.5656/ksae.2010.49.1.061

Korean journal of applied entomology

2010

DOI: 10.5656/ksae.2010.49.1.061

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Effect of Inoculation Concentration on Pathogenicity, Development, Propagation and Body Length of Entomopathogenic Nematode, Steinernema arenarium (Nematoda: Steinernematidae)

Gun-Yeong Han¹,

Lee DongWoon²,

Ho-Yul Choo³

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2012

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Effect of Harvest Time and Infective Juvenile Size of the Entomopathogenic Nematode, Steinernema arenarium, on Pathogenicity, Development, and Propagation

Han¹,

Lee²,

Choo³

et al. 2012

Korean journal of applied entomology

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The size of infective Steinernema arenarium juveniles is variable and ranges from 724 to 1408 ㎛. Effects of harvest time and infective juvenile size on pathogenicity, development, and reproduction were examined in the last instar of the great wax moth, Galleria mellonella. Harvest time of infective juveniles (IJs) of S. arenarium affected pathogenicity. IJs harvested at the 10th day from trapping were more pathogenic than those harvested the 3rd day from trapping. Mortality of G. mellonella also depending on harvest time, i.e, 100% died within 48h when IJs were harvested at the 10th day, without relation to size. However, mortality was 40% in the small size group (SSG) compared with 18% in the large size group (LSG) within 48h when IJs were harvested at the 3rd day. Establishment of S. arenarium within the host was different depending on IJ size. The number of established IJs was 1.8 in the SSG, 3.3 in the LSG, and 3.2 in the mixed size group (MSG) when IJs were harvested at the 3rd day, and 5.3 in the SSG, 7.4 in the LSG, and 7.6 in the MSG when IJs were harvested at the 10th day. The length of the female adult was 7,070.5 ㎛ in the SSG and 7,893.9 ㎛ in the LSG and that of the male was 1,460.5 ㎛ in the SSG and 1,688.2 ㎛ in the LSG when IJs were harvested at the 3rd day. The length of the female adult was 7,573.6 ㎛ in the SSG and 8,305.4 ㎛ in the LSG and that of the male adult was 1,733.4 ㎛ in the SSG and 1,794.4 ㎛ in the LSG when IJs were harvested at the 10th day. Harvest time and size of IJs did not influence numbers of progeny or size of IJS.

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Effect of Harvest Time and Infective Juvenile Size of the Entomopathogenic Nematode, Steinernema arenarium, on Pathogenicity, Development, and Propagation

Han¹,

Lee²,

Choo³

et al. 2012

Korean journal of applied entomology

Self Cite

View full text Add to dashboard Cite

show abstract

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Effect of Inoculation Concentration on Pathogenicity, Development, Propagation and Body Length of Entomopathogenic Nematode, Steinernema arenarium (Nematoda: Steinernematidae)

Cited by 1 publication

References 24 publications

Effect of Harvest Time and Infective Juvenile Size of the Entomopathogenic Nematode, Steinernema arenarium, on Pathogenicity, Development, and Propagation

Effect of Harvest Time and Infective Juvenile Size of the Entomopathogenic Nematode, Steinernema arenarium, on Pathogenicity, Development, and Propagation

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