EFEKTIVITAS CAMPURAN Bacillus thuringiensis dan Beauveria bassiana TERHADAP HAMA Crocidolomia binotalis Zell. PADA TANAMAN KUBIS

Trizelia, Trizelia (2010) EFEKTIVITAS CAMPURAN Bacillus thuringiensis dan Beauveria bassiana TERHADAP HAMA Crocidolomia binotalis Zell. PADA TANAMAN KUBIS. Jurnal Stigma, 8 (1). pp. 60-63. ISSN 0853-3776

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Abstract

An experiment on the effectivity of combinations of Ba- cillus thuringiensis and Beauveria bassiana on Croeidolo- mia binotolis Zell. pest on Cabbage was conducted at the Field Laboratory of Department of Agriculture for Estate Crops West Sumatera, from May 1997 to January 1998.This research aims to study the pathogenicity of B. thuringiensis and B. bassisna singly or connbination on C binotulis larvae. The experiment was arranged in Com- pletlely Randomized Design (CRD) that consisted of fwo factors and four replicates. First factor (A) contained five concentration of B. thuringiersis (Florbac FC) i.e. 0. 0,05. 0,10. 0,15 and 0.20 percent. Second factor (B) contained five concentration oi conidia af B. bassiana i.e, o. 102, 104, 106, and 108 conidia/ml. The result of the experiment shows that B. thuringiensis and B. bassiana was able to kill the C. binotalis larvae. The higher the concentration of these pathogens given the higher the mortality of larvae. The combination of this pathogen had significant interac- tion effect on mortality of larvae, pupae and adult.

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