Respons Fisiologi Crocidolomia Pavonana Terhadap Fraksi Aktif Calophyllum Soulattri  

Oleh:

Syahputra, Edy ; Darusman, Latifah Kosim ; Prijono, Djoko ; Dadang ; Manuwoto, Syafrida

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Hayati Journal of Biosciences vol. 13 no. 1 (Mar. 2006), page 7-12.
Topik: Physiological Response; Crocidolomia Pavonana; Botanical Insecticide; Calophyllum Soulattri
Fulltext: 63.pdf (39.37KB)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: HH13.8 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The objective of this study was to evaluate the physiological response of the cabage head caterpillar crocidolomia pavonana treated with an active fraction of calophyllum soulattri bark extraxt. Extraction of the test plant materials were performed with maceration method using methanol, continued by counter current distribution separation in ethylacetate and water. methanol fractionstion of c. soulattri was performed by vacuum liquid chromatography and the boiassays were conducted by a leaf feeding method. The results showedthat the fichloromethane fraction of c. soulattri had strong insecticidal activity against c. pavonana larvae, with LC50 of 0.05%. Sublethal treatments with the active fraction at LC15, LC50, and LC85 reduced the relative growth rate of the fourth instars by 48.9-94.1%. The treatments with the fraction at LC15 and LC50 to the fourth instars reduced the activity of invertase and protease enzyme by 20.7-24.1 and 14.4-25.14%, respectively, but increased the activity of trehalase by 26.7-120% as compared with controls.

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