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All Journal HAYATI Journal of Biosciences Buletin Hama dan Penyakit Tumbuhan Buletin Penelitian Tanaman Rempah dan Obat Jurnal Entomologi Indonesia Jurnal Ilmu dan Teknologi Kayu Tropis
UTOMO KARTOSUWONDO
Faculty of Agriculture Bogor Agricultural University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science

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Biology of Anastatus dasyni Ferr (Hymenoptera: Eupelmidae) on Egg of Dasynus piperis China (Hemiptera: Coreidae) IM TRISAWA; AUNU RAUF; UTOMO KARTOSUWONDO
HAYATI Journal of Biosciences Vol. 14 No. 3 (2007): September 2007
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (76.548 KB) | DOI: 10.4308/hjb.14.3.81

Abstract

Anastatus dasyni Ferr wasp (Hymenoptera: Eupelmidae) is one of the parasitoids attacking eggs of the pepper berry sucking bug, Dasynus piperis China (Hemiptera: Coreidae). Study was conducted in the laboratory to determine immature development, adult longevity, fecundity, sex ratio, oviposition preference, and number of host parasitized. The result showed that immature development time from egg up to adult was 15.57 + 0.09 days, mean fecundity was 99.45 + 5.60 eggs, and sex ratio (% of females) was 67.28 + 0.56%. If provided with honey 10% and host eggs, females lived for 37.7 + 2.78 days and males 6.30 + 0.56 days. Host eggs aged one and two days were more preferred by A. dasyni for oviposition. Mean number of hosts parasitized by this wasp aged less than one day was much lower as compared to the older one. Key words: pepper, pepper berry sucking bug, Dasynus piperis, parasitoid, Anastatus dasyni
Parasitoid Telur pada Hama Kubis Plutella xylostella (L.) (Lepidoptera : Yponomeutidae) Araz Meilin; Purnama Hidayat; Damayanti Buchori; Utomo Kartosuwondo
Buletin Hama dan Penyakit Tumbuhan Vol. 12 No. 1 (2000): Buletin Hama dan Penyakit Tanaman
Publisher : Buletin Hama dan Penyakit Tumbuhan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1029.836 KB)

Abstract

Egg parasitoids of the diamonback mont, Plutella xylostella (L.) (Lepidoptera : Yponomeutidae) have never been reported in Indonesia. In this study, eggs of P.xylostella were collected from cabbage planation in Cisarua-Bogor, Ciloto-Cianjur, Cikole-Lembang (West Java), Tawangmangu (Central Java), and Malang (East Java). Three species of parasitoids were colleted from all areas, Trichogrammatoidea armigera Nagaraja emerged from eggs colledted from Cisarua-Bogor, Cikole-Lembang, and Ciloto-Cianjur, and Trichogramma flandersi Nagaraja and Nagarkatti (Hymenoptera : Trichogrammatidae) was only found from the eggs collected from Tawangmangu. The morphological character of the parasitoids are discussed
PENGARUH INFEKSI VIRUS MOSAIK TERHADAP PRODUKSI DAN KADAR MINYAK TIGA VARIETAS NILAM Rita Noveriza; Gede Suastika; Sri Hendrastuti Hidayat; Utomo Kartosuwondo
Buletin Penelitian Tanaman Rempah dan Obat Vol 23, No 1 (2012): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v23n1.2012.%p

Abstract

Penyakit mosaik tercatat sebagai salah satu faktor pembatas dalam produksi tanaman nilam (Pogostemon cablin). Penelitian ini dilakukan untuk mengukur pengaruh infeksi virus penyebab penyakit mosaik terhadap produksi dan kadar minyak tanaman nilam. Bahan yang digunakan dalam penelitian ini adalah tiga varietas unggul tanaman nilam yaitu Sidikalang, Lhokseumawe dan Tapak Tuan. Infeksi Potyvirus berhasil dideteksi pada varietas Tapak Tuan dan Lhok-seumawe berdasarkan hasil metode ELISA. Pengukuran berat terna basah, terna kering, kadar minyak dan kadar patchouli alcohol (PA) yang dilakukan pada tanaman berumur enam bulan menunjukkan terjadinya penurunan produksi dan kadar minyak. Penurunan tertinggi berat terna basah, terna kering, kadar minyak dan kadar PA berturut-turut dapat mencapai 34,65, 40,42, 9,09 dan 5,06%.
Penyimpanan suhu rendah berbagai fase hidup parasitoid: pengaruhnya terhadap parasitisasi dan kebugaran Trichogrammatoidea armigera Nagaraja (Hymenoptera: Trichogrammatidae) Murtiyarini Murtiyarini; Damayanti Buchori; Utomo Kartosuwondo
Jurnal Entomologi Indonesia Vol 3 No 2 (2006): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.451 KB) | DOI: 10.5994/jei.3.2.71

Abstract

T. armigera is one of the potential egg parasitoids. The aim of this research was to study the effects of low temperatures ( 9ºC and 15ºC) on the fitness of T. armigera. The design of the experiments is a factorial design with two factors (temperature and age of parasitoid), with 10 replicates. Fitness were measured based on the survival, fertility, size, sex ratio, lifespan and fecundity. Result showed that the emergence of T. armigera was postponed by 2-5 days under low temperatures. Temperatures had a more significant effect than age of parasitoid. The postponement of adult emergence is very useful in regard to field application schedules. Percentage of adults emergence, sex ratio, egg productivity, fecundity tended to decrease under low temperatures, the length of female adult wings varied in each treatment and it tended to be shorter in 9ºC, while the width of female adult heads was almost similar in all treatment except in untreated control. These characters are very important in determining the fitness of the parasitoid in the field.
Potential of Fungus Metarhizium brunneum Petch as Bio Insectisides to Control Termite Macrotermes gilvus Hagen in Castor Plantation Muhammad Sayuti; Teguh Santoso; Idham S Harahap; Utomo Kartosuwondo
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 9, No 1 (2011): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.654 KB) | DOI: 10.51850/jitkt.v9i1.149

Abstract

One of the important pest of castor plant (Jatropha curcas L) in Indonesia is termite Macrotermes gilvus. While entomopathogenic fungus Metarhizium brunneum has been proven effective against this termite and the subterranean termite M. gilvus in the laboratory, the performance of the fungus in the field need to be studied. The aims of the research are to investigate the cruising distance and colony population of M. gilvus before and after application of M. brunneum. Triple mark recapture technique has been used to predict the termite colony population size. The suspension of fungi at density 1,21x106 conidia ml-1 was poured at each experimental station (150 ml per station). The result showed that in block I (15,210 m2), block II (5,700 m2), block III (27,000 m2); 8, 1 and 15 termite colonies have been detected respectively from which, 150,388; 59,219; and 149,459 individual were found. In block I, the termites cruised as far as 140,5 m, as compared to 140 m in block III. In all blocks, we noted the significant decrease of termite population after application of M. brunneum, from initial population 359,066 to 15,015 individual.Key words: bio-control agents, entomopathogenic fungi, Jatropha curcas, Macrotermes gilvus, Metarhizium brunneum, size of colony
Co-Authors Araz Meilin AUNU RAUF DAMAYANTI BUCHORI Gede Suastika Idham S Harahap IM TRISAWA Laksono Trisnantoro Muhammad Sayuti Murtiyarini Murtiyarini PURNAMA HIDAYAT Rita Noveriza SRI HENDRASTUTI HIDAYAT