THE EFFECT OF CONCENTRATION OF RHIZOME EXTRACTS TO Callosobruchus chinensis MORTALITY

Poerwanto, Mofit Eko THE EFFECT OF CONCENTRATION OF RHIZOME EXTRACTS TO Callosobruchus chinensis MORTALITY. AGRIVET, 2 (2). pp. 47-57. ISSN 1410-3796

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    Abstract

    The research was conducted to get an understanding of the effect of four kinds rhizome extract to the mortality of Collosobruchus chinensis and to find a new botanical agent for insecticide. The experiment was carried out at Plant Protection Laboratory, Faculty of Agriculture, Pembangunan Nasional "Yeteran" University, Yogyakarta. It was done since July up to Desember 1997, on Factorial Completely Randomized Designed, with two factor and five replicatons. First factor consisted of four kinds of rhizome extract (Alpinia galanga, Curcuma domestica, Zingiber officinale and Kaempferia galanga) and the second factor was the extract concentration (0%, 12,5%,25%, 50% and 100%). The mortality of Callosobruchus chinensis was tested by contact and oral application to determine the LC 50 value. The value of LC 50 of Zingiber officinale,Alpinia galanga, Kaempferia galanga and Curcuma domestica extract were 25,68%,38,18%, 64,94% and 79,86% respectively by oral application, meanwhile by contact application, the extract got 51862,82% , 105.26%, 442,03% and 83,39% value of LC 50 respectively. Zingiber oficinale extract'was the stomach poison, its toxicity was the highest and could be applicated orally. Curcuma domestica extract could be applicated by oral and by contact.

    Item Type: Article
    Subjects: 600 Teknologi
    Divisions: Fakultas Pertanian > Agroteknologi
    Depositing User: Dr.Ir. Mofit Eko Poerwanto., MP
    Date Deposited: 05 Jan 2013 08:03
    Last Modified: 05 Jan 2013 08:03
    URI: http://repository.upnyk.ac.id/id/eprint/4749

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