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All Journal Jurnal Ilmu Pertanian JOURNAL OF COASTAL DEVELOPMENT ILMU KELAUTAN: Indonesian Journal of Marine Sciences Ganendra: Majalah IPTEK Nuklir Microbiology Indonesia Journal of Tropical Soils Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Biotropika Indonesian Journal of Biotechnology Jurnal Perlindungan Tanaman Indonesia Journal of Tropical Biodiversity and Biotechnology
Triwibowo Yuwono
Laboratory Of Microbiology, Department Of Agricultural Microbiology, Faculty Of Agriculture, Universitas Gadjah Mada, Yogyakarta, Indonesia, 55281
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Other

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Journal : Jurnal Perlindungan Tanaman Indonesia

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Karakter Populasi Wereng Hijau, Nephotettix virescens (Hemiptera: Cicadellidae) di Wilayah Endemi dan Non Endemi Penyakit Tungro Padi Supriyadi Supriyadi; Kasumbogo Untung; Andi Trisyono; Triwibowo Yuwono
Jurnal Perlindungan Tanaman Indonesia Vol 10, No 2 (2004)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12203

Abstract

The objectives of this research were to determine the species composition, distribution pattern and virus transmission properties of N. virescens. Sweep net sampling of the leafhopper and others tungro vectors population were conducted from endemic areas in Central Java, East Java and Bali and also non endemic areas from Central Java and East Java. The species composition and distribution pattern of the leafhopper were studied in seedbeds and early stage of rice crop (30 days after transplanting). Inoculation test using Cisadane seedlings was conducted to determine the efficiency of virus transmission by N. virescens colonies. Four tungro virus vectors were found in all areas, namely N. virescens, N. nigropictus, N. malayanus, and Recilia sp. The domination of N. virescens occurred either in the endemic area or the non endemic areas. However, the domination of N. virescens did not correlate with the occurrence of the disease in the endemic area. The distribution pattern of N. virescens was regular. The number of N. virescens active transmitter in the endemic area was higher than that in the non-endemic areas. In addition, the female of N. virescens was more efficient in transmitting the tungro virus than that of the male.
Pengaruh Minyak Atsiri Asal Kulit Jeruk Manis dan Besar terhadap Perkembangan Tungau Panonychus citri (Acarina: Tetranychidae) Mizu lstianto; Kasumbogo Untung; Y. Andi Trisyono; Triwibowo Yuwono
Jurnal Perlindungan Tanaman Indonesia Vol 9, No 2 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12244

Abstract

P. citri (Acarina: Tetranychidae) is one of the economically important citrus pests in Indonesia. However, the association of this pest with its host is not well understood. The objective of this research was to evaluate the effects of essential oil extracted from sweet orange and pumello fruit peels on the development of P. citri. The research was conducted in the laboratory of IP2TP Tlekung Malang, using a complete random design consisted of six treatments. Fifteen mites were used for each treatment. The treatments were concentrations 10, 20, 40, and 80 ppm of essential oil. Parafin was used as a positive control because it was a diluting solution for the essential oil. The control received no application. The result showed that the main content of essential oil extracted from sweet orange and pumello was limonene. The essential oils prolonged the life cycle and reduced the fecundity of P. citri. The effects of essential oil extracted from pumello were found to be more pronounced than were from sweet orange. These differences might be due to the differences in the composition of the volatile compounds other than limonene.
Co-Authors Abdul Syukur Agus Taftazani Agus Taftazani Ali Ikhwan Arofatullah, Nur Akbar Bernadetta Octavia Diah Rachmawati Donny Widianto Endang Kusdiyantini Endang Kusdiyantini Endang Pamulatsih Erni Martani HARI HARTIKO Hasna Dyah Kusumardani Hermin Pancasakti Kusumaningrum Hermin Pancasakti Kusumaningrum Ikhwan , Ali Irfan Dwidya Prijambada JAKA WIDADA JOEDORO SOEDARSONO JOEDORO SOEDARSONO Joedoro Sudarsono Kasumbogo Untung M. Saifur Rohman Mizu lstianto Shiddieq, Dja'far Siti Subandiyah Sulakhudin Sulakhudin Supriyadi Supriyadi WAHYU IRAWATI Wayan T. Artama Widada , Jaka Y. Andi Trisyono Yudi Kusnadi