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,, Samsudin
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Biochemistry, Genetics & Molecular Biology

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Uji Patologi Spodoptera exigua Nucleopolyhedrovirus (SeNPV) pada Larva Spodoptera exigua Huebner (Lepidoptera: Noctuidae) ,, Samsudin; Santoso, Teguh
JURNAL BIOLOGI INDONESIA Vol 10, No 2 (2014): Jurnal Biologi Indonesia
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.01 KB) | DOI: 10.14203/jbi.v10i2.2080

Abstract

Spodoptera exigua nucleopolyhedrovirus (SeNPV) is an entomophathogenic virus of S. exigua larvae commonly usedas bioinsecticide. This research was aimed to 1) study the symptoms of SeNPV infection on the S. exigua larvae inthe laboratory, 2) examine the virulence of SeNPV on the 3rd instar of S. exigua larvae and (3) find out the optimalconcentration of polyhedra and harvesting time. The infection of SeNPV on the S. exigua larvae was inhibitedmolting process and disturbing larval growth. The color of infected larvae gradually changed become more dark,and at the end of infection, larvae died with fragile and broken integument. Infected larvae showed reduction infeeding activities. The LC50 of SeNPV on 3rd instar larvae in the laboratory was estimated 6.65 x 105 POBs/ml.The polyhedra concentration used for virus propagation was 5.88 x 106 POBs/ml. The optimal harvesting time was5 days after inoculation, where most of the infected larvae had died but the body still intact.Keywords: Pathology, symptom, virulence, Spodoptera exigua, SeNPV
Co-Authors A.A. Ketut Agung Cahyawan W