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All Journal Agroland : Jurnal Ilmu-Ilmu Pertanian JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Nurnina Nonci
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Agriculture, Biological Sciences & Forestry

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EVALUASI LIMA JENIS INNER CARRIER DAN FORMULASI BACILLUS SUBTILIS UNTUK PENGENDALIAN HAWAR PELEPAH JAGUNG (RHIZOCTONIA SOLANI KUHN) Amran Muis; Nurasiah Djaenuddin; Nurnina Nonci
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 15 No. 2 (2015): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (125.614 KB) | DOI: 10.23960/j.hptt.215164-169

Abstract

Evaluation of five inner carriers and Bacillus subtilis formulation to control banded leaf and sheath blight (Rhizoctonia solani Kuhn). One alternative control method against plant pathogens is the use of antagonistic microorganisms, such as Bacillus subtilis. The use of the antagonistic bacteria on corn especially in Indonesia is still lack. The objective of this research was to evaluate some inner carrier and to make formulated antagonistic B. subtilis to be used as biological control agents on corn diseases. This research consists of laboratory and greenhouse activities. The laboratory activities consist of B. subtilis biomass production, formulation of B. subtilis, and evaluation of five types of inner carrier. In the greenhouse, testing the formulation B. subtilis with talc as an inner carrier, which is compared with the treatment solution of B. subtilis, nordox, metalaxyl fungicides. The data collected in this study were percentage of germination, damping off due to pathogen R. solani, plant height, plant fresh weight, and percentages of R. solani incidence on 14 DAP. The results showed that talc powder and corn flour were the best inner carrier to be used in sorage formulation of antagonistic Bacillus. Formulated Bacillus subtilis TM4 showed no negative affect on seed germination and able to suppress the development of R. solani in greenhouse.
PENGARUH INSEKTISIDA TERHADAP MUSUH ALAMI TELUR PENGGEREK BATANG PADA Scirpophaga incertulas Walker Nurnina Nonci; Fausiah T Ladja
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 13, No 3 (2006)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.497 KB)

Abstract

This study was conducted between January and May 2005 to explore effects of insecticides on the eggs of rice stem borer Scirpophaga insertulas Walker. This was done at the Lanrang experimental farm station and the laboratory of entomology and plant physiology of ICERI. There were four rice varieties used in he experiment (Gilirang, Cigeulis, Lok Ulo and Cibogo), each of which was observed in a 5 x 5 m observation plot.  Observation was done by collecting egg of rice stem borer on selected plant samples. The collected eggs were placed in test tubes, labeled, and brought to laboratory and the parasitoid found was examined under a light microscope. Results showed that for the four rice varieties tested, it was found three parasitoid species on S. incertulas egg i.e. Trichogramma japonicum Ashm., Telenomus rowani Gah., and Tetratichus schoenobi Ferr. Nevertheless, in one egg mass of S. incertulas, not all species of parasitoid found at the same time, sometimes T. japonicum with T. rowani, T. rowani with T. schoenobi, or T. japonicum with T. schoenobi. There was no direct effect insecticide application to parasitoid population.
Co-Authors Amran Muis Fausiah T Ladja Nurasiah Djaenuddin