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All Journal Jurnal Perlindungan Tanaman Indonesia
Ma'unah Ambarwati
Program Pascasarjana Fakultas Pertanian Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry

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Pengaruh Tinopal terhadap Patogenisitas Nucleopolyhedrovirus pada Spodoptera litura Ma'unah Ambarwati; Arman Wijonarko; Sedyo Hartono
Jurnal Perlindungan Tanaman Indonesia Vol 16, No 2 (2010)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11731

Abstract

Susceptibility of the armyworm, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) to nucleopolyhedrovirus was evaluated using droplet feeding methods. S. litura was originally collected from the field in Bantul and has been reared continuously in the laboratory using artificial diet. The tested instars were exposed a series concentration of nucleopolyhedrovirus (2×103, 2×104, 2×105, 2×106, 2×107, 2×108, 2×109 PIB/ml) which were added with Tinopal 0,5% and 1%. The result indicated that the larval mortality of 3rd, 4th, and 5th instars Tinopal, significantly different with the addition of 1% Tinopal. This addition increased the effectiveness of NPV for 235, 25117, and 6.6 million fold. The observation of the larval midgut which was treated by Tinopal, showed that Tinopal physically disrupt the peritrophic membrane. Therefore, it can be suggested that the Tinopal facilitates the entry of NPV to the host insect. 
Co-Authors Arman Wijonarko SEDYO HARTONO