Damayanti Buchori
Departemen Proteksi Tanaman, Faperta, Institut Pertanian Bogor, Kampus Darmaga, Bogor

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Diversity and Parasitism of Parasitoid in the Rice Field of Gunung Halimun National Park Hasmiandy Hamid; Damayanti Buchori; Hermanu Triwidodo
HAYATI Journal of Biosciences Vol 10, No 3 (2003): Hayati Journal of Biosciences
Publisher : Bogor Agricultural University, Indonesia

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Abstract

Study on parasitoid diversity and their parasitism in Gunung Halimun National Park rice field in different seasons wasconducted during January to December 2001. Parasitoids were collected from a range of host using transect method. Totalspecies, individual abundance, diversity index and parasitoid and host evenness in the wet season were higher than those indry season. Pangguyangan (700 m above sea level) has higher and more diverse parasit- and their Bosts than those inCisarua (620 m above sea level). Parasitoid diversity index in Legok was higher than that in Pangguyaagan, although morediverse of hosts in Pangguyangan were observed. Parasitoid and host diversity index were similar in different time, althoughthey tend to increase linearly with the rice growth. Parasitism rate in wet season tend to be higher than that in dry season.Generally, Legok showed higher rate of parasitism compared to others. These result suggest that parasitoid diversity andparasitism is depend on many factors, those are, location, season, host feeding niche and host diversity.
Insect Diversity at the Forest Margin-Rice Field Interface: Indicator for a Healthy Ecosystem Akhmad Rizali; Damayanti Buchori; Hermanu Triwidodo
HAYATI Journal of Biosciences Vol 9, No 2 (2002): Hayati Journal of Biosciences
Publisher : Bogor Agricultural University, Indonesia

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This research was conducted in Gunung Halimun National Park, West Java. The influence of forest habitat toward insectdiversity in rice field was shown. Samplings of insect species were done using pitfall trap, farmcop, malaise trap, and lighttrap. Altogether, there were 14 352 individual insects collected, which consist of 16 orders, 110 families, and 435 species.Based on analysis of their functional role, the insect complexes consist of 37.2% herbivores, 21.4% predators, 12.2% parasitoids,6.2% detritivores, and 23.0% transient spesies. Our data further suggested that Chironomidae are dominating spesies on therice field. Some of the transient spesies could potentially be used as indicator for healthy ecosystem. These are theEphemeroptera, Trichoptera, Carabidae and Formicidae in rice field. Ephemeroptera and Trichoptera are bioindicators forwater habitat whereas Carabidae and Formicidae for soil habitat.
Teknik perbanyakan massal parasitoid Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae) dengan kotak plastik Araz Meilin; Y. Andi Trisyono; Edhi Martono; Damayanti Buchori
Jurnal Entomologi Indonesia Vol 9, No 1 (2012)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

The objective of this study was to develop a mass-rearing technique of A. nilaparvatae. Mass-rearing was done using a plastic box (14 cm × 18.5 cm × 18.5 cm, made of plastic-mica, the upper side equipped with a 10 cm test tube), placed on a tray with rice seedlings containing an estimated of 11,130 eggs of N. lugens. About 355 adult parasitoids were successfully released per box when each box was infested with 50 parasitoids. The number of parasitoids produced were reduced to 164 adults when the infestation was made at 100 parasitoids per box. The emergence of parasitoids started around 07:00 am until 04:00 pm with the highest rate (36.2%) occured at 10:00 am. One plastic box cost only Rp10.000,-; thus the estimate cost to produce one parasitoid using this tecnique was Rp60,- These findings suggest that the plastik box is a simple and inexpensive technique for mass-rearing of A. nilaparvatae. KEY WORDS: egg-parasitoid, Nilaparvata lugens, brown planthopper
Path Analysis as a Tool to Identify Indicators of Fitness Traits MARTINA .; ASEP SAEFUDDIN; DAMAYANTI BUCHORI
Jurnal Entomologi Indonesia Vol 4, No 2 (2007)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

Karakter kebugaran, seperti keperidian, lama hidup, dan fertilitas sering digunakan untuk menggambarkan kapasitas reproduksi suatu spesies. Oleh karena itu, kebugaran parasitoid sering digunakan sebagai indikator potensial dari suatu kualitas keberhasilan di lapangan. Karakter tersebut dapat pula menggambarkan persistensi populasi parasitoid di lapangan selama periode tertentu. Dalam pengelolaan hama, kebugaran parasitoid menjadi indikator penting untuk kesuksesan pengendalian hayati. Beberapa faktor yang berkaitan dengan kualitas parasitoid adalah pengaruh nang, lama generasi dan asal-usul parasitoid. Path analysis digunakan untuk menganalisa pola hubungan dan keterkaitan antar variabel kebugaran. Tujuan penelitian ini adalah untuk mengidentifikasikan indikator sukses dari perilaku parasitisasi serta mempelajari mekanisme hubungan sebab akibat (causal meechanism) antar beberapa karakter kebugaran dari (T. armigera) yang menyerang (C. capholonica) dan H. armigera. Hasil analisis menunjukan adanya korelasi yang tinggi dengan lama hidup. Pada inang Cocryra, ditemukan bahwa panjang sayap depan memiliki nilai positif dengan parasitisme, sedangkan ukuran kepala dan laju keberhasilan hidup dapat dikategorikan sebagai indirect indicator melalui jmlah telur yang dihasilkan. KATA KUNCI: Interaksi inang parasitoid, pengendalian hayati, ekologi reproduksi, karakter kebugaran.
Pengaruh lama ketiadaan inang terhadap kapasitas reproduksi parasitoid Snellenius manilae Ashmead (Hymenoptera: Braconidae) Mohamad Eldiary Akbar; Damayanti Buchori
Jurnal Entomologi Indonesia Vol 9, No 1 (2012)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

The research was conducted at Laboratory of Bioecology of Parasitoid and Predator, Department of Plant Protection, Faculty of Agriculture, IPB. Ten parasitoids of the same age and cohort were used in this experiment. Deprivation of hosts were done for 1, 2, 3, 4, 5, 6 and 7 days at the beginning and toward the end of their life. All hosts were replaced every 24 hours. Result indicated that host deprivation affects the reproductive capacity of Snellenius manilae. Even though parasitoids were able to lay eggs even when they were deprived of hosts for seven consecutive days, the overall results of host deprivation experiment showed that the length and timing of deprivation period can affect reproductive capacity. Deprivation of hosts tends to increase the parasitism rate and the numbers of eggs laid upon their first encounter of hosts after the treatment. The difference is more pronounced on treatements that allowed parasitism to occur before the deprivation treatment. However, the overall results suggests that deprivation overall decrease the reproductive capacity of the parasitoid. The longevity of deprived individuals was also lengthened. Parasitoids that were given host before deprivation treatments tend to produced more eggs than those were not. These results showed that deprivation of hosts in the field may affect the effectiveness of parasitoids and the success of biological control. KEY WORDS: host parasitoid interaction, reproductive capacity, oviposition
Butterfly Record from Salak Mountain, Indonesia HERI TABADEPU; DAMAYANTI BUCHORI; BANDUNG SAHARI
Jurnal Entomologi Indonesia Vol 5, No 1 (2008)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

Keanekaragaman kupu-kupu dari Gunung Salak, Indonesia. Penelitian mengenai kupu-kupu telah banyak dilakukan di seluruh dunia, namun informasi basis data tentang kupu-kupu sangat terbatas di Indonesia. Penelitian ini bertujuan mengetahui spesies dari komunitas kupu-kupu yang berada di hutan alam dan habitat sekitarnya di areal Gunung Salak, Taman Nasional Gunung Halimun-Salak, Bogor, Jawa Barat. Pengumpulan data ekologi dilakukan pada bulan September sampai dengan Desember 2003. Survei kupu-kupu dilakukan dengan menggunakan transek sepanjang 200 meter di lima lokasi terpilih yang berbeda. Survei mengumpulkan 237 individu dari 28 spesies yang terdiri dari dari 4 famili. Famili yang paling sering dijumpai adalah Nymphalidae. Pencatatan yang dilakukan menunjukkan bahwa Nymphalidae memiliki jumlah species terbanyak dan kelimpahan individu tertinggi. Dalam tataran species, Melanitis leda adalah spesies dengan kelimpahan tertinggi. Penelitian lebih jauh diperlukan untuk menyediakan informasi yang lebih lengkap tentang komunitas kupu-kupu di daerah ini. KEY WORDS: fbutterfly, natural forest, paddy field, species, transect.
Keefektivan Padi Transgenik terhadap Hama Penggerek Batang Padi Kuning Scirpophaga incertulas (Walker) (Lepidoptera: Crambidae). N . USYATI; DAMAYANTI BUCHORI; SYAFRIDA MANUWOTO; PURNAMA HIDAYAT; INEZ H. SLAMET-LOEDIN
Jurnal Entomologi Indonesia Vol 6, No 1 (2009)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

Transformation two cry genes (cryIB-cryIAa) and transformation with a single the cry1B gene under the control of a wound-inducible maize proteinase inhibitor gene (mpi) promoter were two approaches that were used to get resistant rice to the rice stemborer which may be had a durable resistance. To obtain information on the effectiveness of seven transgenic rice lines to the rice yellow stemborer S. incertulas, a test was conducted in greenhouse. The seven lines were 1). line 4.2.3 and 2) line 4.2.4 both contain fusion of two cry genes (cryIB-cryIAa); 3) line 3R9 and 4) line 3R7 lines both contain of mpi-cryIB gene; and 5) line 6.11 contains of cryIAb gene by particle bombardment, 6) line DT-cry (Azygous) that do not contain cry gene (null), and 7) DT-cry line contains cryIAb gene by Agrobacterium, and as a negative control, we used three non transgenic rice varieties i.e., Rojolele, Cilosari, and Ciherang. The result showed that transgenic rice lines, except DT-cry and DT-cry (Azygous) lines were effective to suppress damage by the insect, and showed an inhibition effect on the growth of S. incertulas, and had a high level ofresistance than non transgenic rice varieties had. There were differences on resistance value/level among transgenic rice lines. Based on the resistance value, 6.11 line was the highest (scale 0) followed by 4.2.4 line and 3R7 line, these lines were categorized as high resistance (scale 1). Transgenic rice-4.2.3 line and 3R9 line were categorized as moderat resistance (scale 3). DT-cry and DT-cry (Azygous) lines were susceptible (scale 7-9). KEY WORDS: Effectiveness, resistance value, transgenic rice, S. incertulas.
Pengaruh Pakan terhadap Lama Hidup dan Kebugaran Imago Eriborus argenteopilosus Cameron (Hymenoptera: Ichneumonidae NOVRI NELLY; DAMAYANTI BUCHORI
Jurnal Entomologi Indonesia Vol 5, No 1 (2008)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

Research of the effect of adult feeding to longevity and fecundity of parasitoid Eriborus argenteopilosus Cameron (Hymenoptera: Ichneumonidae) was conducted under laboratory conditions. Fitness was studied by feeding adults Eriborus with different types of food ( 10% honey, 10% yeast, aquadest). Results of the research indicated that fitness and longevity were highest when Eriborus was fed with 10% honey. There is a positive correlation between size and fecundity, suggesting certain measures of body length can be used as indicators of fitness. KEY WORDS: feeding, life time, fitness, parasitoid Eriborus argenteopilosus.
Keefektifan Telenomus remus (Nixon) (Hymenoptera:Scelionidae) Dalam Mengendalikan Hama Tanaman Bawang Daun Spodoptera exigua Hübner (Lepidoptera: Noctuidae) DAMAYANTI BUCHORI; ERNA DWI HERAWATI; ADHA SARI
Jurnal Entomologi Indonesia Vol 5, No 2 (2008)
Publisher : Perhimpunan Entomologi Indonesia

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The Effectiveness of Telenomus remus (Nixon) (Hymenoptera: Scelionidae) for Controling Welsh Onion Pest Spodoptera exigua Hübner (Lepidoptera: Noctuidae). The objective of this research is to study the effectiveness of T. remus as biocontrol agent for S. exigua. The study was conducted by releasing a set of T. remus females on potted onion plants that have been attacked by S. exigua. Three different parasitism level was artificially created by releasing different numbers of females: low rate parasitism (release of 4 adult females), moderate parasitism (7 females) and high parasitism level (11 females). The result of this study showed that T. remus is effective to control S. exigua population. Up to 48.2% of S. exigua. population was able to be suppressed by the high parasitism level. Rate of parasitisation was more when more adult female T. remus was released. Release of 11 adult female of T. remus can increase the population level of the parasitoid up to 24.1 times than the initial population. This express that T. remus is a mortality factor which can regulate the population of S. exigua. However, the succesfull parasitisation of T. remus is also dependent on environmental factors such as temperature, humidity, food, and host suitability. KEY WORDS: Telenomus remus, Spodoptera exigua, welsh onion, biological control, egg parasitoid.
Pengelompokan dan Struktur Populasi Parasitoid Telur Trichogrammatoidea armigera pada Telur Helicoverpa armigera pada Jagung Berdasarkan Karakter Molekuler BAHAGIAWATI .; DWINITA W UTAMI; DAMAYANTI BUCHORI
Jurnal Entomologi Indonesia Vol 7, No 1 (2010)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

The effectiveness of this parasitoid was influenced by its population structure in the field. However, because this parasitoid has a tiny size, it was difficult to know the population structure of this parasitoid. This problem can be overcome by using molecular characteristic i.e. molecular markers. Based on RAPD-PCR analysis from 4 selected primers on 19 DNA samples from 3 different locations it was fond, that Gunung Bunder II population was divided into sub-population and so did Cugenang population, which is indicated by their small Fst and Nm index. The Fst and Nm index for Gunung Bunder II population was 0,39 and 0,77, while 0,51 and 0,47 for Cugenang population. If we calculated the Fst and Nm for all samples together, we found that this parasitoid has a random mating pattern, which is also shown by the dendrogram. The dendrogram indicate that each sub-population from one location was not grouped in one cluster but distributed in every cluster. KEY WORDS: Trichogrammatoidea armigera, Helicoverpa armigera, RAPD-PCR, population structure, genetic variety.