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Pelepasan dan Pemangsaan Kumbang Jelajah Paederusfuscipes (Coleoptera:Staphylinidae) Terhadap Telur Dan Larva Helicoverpa armigera (Lepidoptera: Noctuidae) I Wayan Winasa; Dadan Hindayana; Sugeng Santoso
Jurnal Ilmu Pertanian Indonesia Vol. 12 No. 3 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.125 KB)

Abstract

Paederus fuscipes is an important predators in soybean fields, including toward Helicoverpa armigera. Predation evaluation using a cage are very common, giving significant suppressed the exposed pest population. However, predation evaluation in open space is rarely conducted. This study was to investigate the dispersal capability of P. fuscipes, and to evaluate the effectiveness of the beetle release in the predation on H. Armigera eggs and larvae. Observations were made in a soybean field in Mekarwangi Village, Cianjur, during soybean planting season in 2005 and 2006. In the dispersal study, all beetles were collected from the field and tagged on the elitra. As many as 1187 tagged beetle were released. The dispersal was observed in the area within a radius of 40 m from the release point. In the predation study, eggs and larvae of H.armigera from laboratory rearing were used as the prey. Soybean plots with exposed prey were treated by releasing the beetle with different densities, i. e., 100-400 beetles, and a control. The released beetles were from laboratory rearing and beetles were collected from the field. The study indicated that the tagged beetles that were released to the soybean field actively move but their dispersal were relatively slow. Until 5 days after release, most beetles were remain in the area surrounding release point, within a radius of 5 m. Release of predators to the soybean field, suppressed H. armigera egg and larva populations for both vegetative and generative stages, but were not significantly different between treatment and control plots, except for the egg population on vegetative stage. It indicates that population of the natural predator in soybean field were very complex and potential to be used for controling pest populations. Thus, it is important to manage soybean field that can support the role of predators in the field. Key words: predator release, Paederus fuscipes, predation, Helicoverva armigera
Insidensi dan Sebaran Tungau Hama pada Pepaya di Pulau Lombok (Incidence and Distribution of Mites on Papaya in Lombok Island) Wieke Mei Dina; Sugeng Santoso; Tri Asmira Damayanti
Jurnal Hortikultura Vol 31, No 1 (2021): Juni 2021
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v31n1.2021.p61-70

Abstract

Tungau hama merupakan salah satu penyebab penurunan produksi pepaya di Pulau Lombok. Penelitian bertujuan menentukan insidensi, sebaran, dan identitas tungau hama pepaya di Pulau Lombok. Sebaran ditentukan berdasarkan insidensi tungau hama pada 50 lokasi pengambilan contoh dan tungau hama diidentifikasi secara morfologi dan molekuler berdasarkan runutan rDNA ITS2. Hasil penelitian menunjukkan terdapat 12 spesies tungau berdasarkan identifikasi morfologi, yaitu Aculops pelekassi, Calacarus carinatus, Brevipalpus californicus, B. obovatus, B. phoenicis, Tenuipalpus pasificus, Eutetranychus africanus, Panonychus citri, Tetranychus fijiensis, T. kanzawai, T. piercei, dan Tarsonemus bilobatus dengan insidensi berkisar antara 2–72%. Di antara spesies yang ditemukan, P. citri merupakan tungau hama dengan sebaran dan insidensi tertinggi (72%). Hasil analisis persebaran menunjukkan bahwa keanekaragaman spesies tungau hama pada tanaman pepaya di Pulau Lombok adalah tinggi dengan tingkat dominansi rendah dan tingkat kemerataan spesies yang tinggi. Uji PCR dan analisis runutan DNA berhasil mendeteksi dan mengidentifikasi enam spesies tungau hama, yaitu T. piercei, T. kanzawai, E. africanus, dan P. citri (Tetranychidae), pada 500–600 pb serta B. californicus dan B. phoenicis (Tenuipalpidae) pada 600–700 pb. Similaritas tertinggi ditemukan pada T. piercei dan T. kanzawai (100%). Ini merupakan laporan pertama keberadaan B. californicus sebagai hama pada tanaman pepaya di Pulau Lombok.KeywordsFrekuensi kemunculan; PCR; Perunutan DNA; SebaranAbstractMites are one obstacle of papaya production in Lombok Island. Thus, the aim of research was to determine incidence, distribution and identity of mites on papaya plant in Lombok Island. Distribution is determined based on incidence of in 50 sampling area, while mites identified morphological and molecularly based on rDNA ITS2. This studies revealed that there were 12 species of mites based on morphological, namely Aculops pelekassi, Calacarus carinatus, Brevipalpus californicus, B. obovatus, B. phoenicis, Tenuipalpus pacificus Eutetranychus africanus, Panonychus citri, Tetranychus fijiensis, T. kanzawai, and T. pierce with an incidence ranging 2-72%. Among species found, P. citri has the highest distribution and incidence of 72%. The results of the distribution analysis showed that diversity of mite species was high, with low dominance and high evenness. PCR assay successfully amplified DNA of six species, namely T. piercei, T. kanzawai, E. africanus, P. citri with the DNA size of 500-600 bp and B. californicus, B. phoenicis with the DNA size of 600-700 bp. The highest similarity species was found on T .piercei and T. kanzawai (100%). This was the first report of B. californicus infestating on papaya in Lombok.
Penekanan Penularan Bean Common Mosaic Virus oleh Efek Penghambat Makan Kitosan Terhadap Aphis craccivora Koch. (Bean Common Mosaic Virus Transmission Inhibition by Antifeedant Chitosan Against Aphis craccivora Koch.) Dita Megasari; Tri Asmira Damayanti; Sugeng Santoso
Jurnal Hortikultura Vol 29, No 2 (2019): Desember 2019
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v29n2.2019.p209-218

Abstract

Bean common mosaic virus (BCMV) merupakan virus penting pada kacang panjang di Indonesia. Salah satu cara untuk mengendalikan BCMV adalah dengan penggunaan kitosan. Pada penelitian sebelumnya, kitosan komersial dengan konsentrasi 0,9% dilaporkan mampu menekan infeksi BCMV yang ditularkan oleh Aphis craccivora dengan mekanisme yang belum diketahui. Penelitian ini bertujuan untuk mengkaji mekanisme kitosan dalam menekan transmisi BCMV yang ditularkan oleh A. craccivora. Kitosan yang diuji yaitu kitosan murni dengan konsentrasi 0,1%–1,1% dan kitosan komersial konsentrasi 0,9% sebagai pembanding. Kitosan diaplikasikan dengan cara penyemprotan daun dengan volume 3 ml/tanaman pada hari sebelum penularan BCMV menggunakan tiga ekor kutudaun yang mengandung virus. Peubah yang diamati, yaitu periode inkubasi, insidensi penyakit, keparahan penyakit, akumulasi virus pada tanaman dan kutudaun, serta deteksi gen CP BCMV, PR1, dan PR3 dengan RT-PCR. Secara umum perlakuan kitosan mampu menekan transmisi BCMV oleh A. craccivora. Periode inkubasi tanaman perlakuan berkisar antara 7–9 hari. Perlakuan kitosan murni menekan insidensi dan keparahan penyakit antara 40%–80% dan 35,71%–78,57% tergantung konsentrasi kitosan. Kitosan komersial menghambat insidensi dan keparahan penyakit sampai 100%. Perlakuan kitosan pada konsentrasi 0,9% baik kitosan murni maupun komersial menunjukkan akumulasi BCMV yang lebih rendah dibandingkan kontrol tanpa perlakuan, yaitu pada kitosan komersial 0,9% memiliki nilai absorbansi ELISA (NAE) sebesar 0,26 ± 0,29 dan pada kitosan murni 0,9% memiliki NAE sebesar 1,15 ± 1,69, sedangkan kontrol tanpa perlakuan memiliki NAE sebesar 3,13 ± 0,17. BCMV positif terdeteksi pada kutudaun menunjukkan bahwa kutudaun tidak makan inokulasi pada tanaman perlakuan. Amplifikasi gen CP BCMV dengan RT-PCR menunjukkan positif teramplifikasi pada semua perlakuan kitosan kecuali perlakuan kitosan komersial. Gen PR1 tidak teramplifikasi, sedangkan gen PR3 teramplifikasi pada semua perlakuan. Akumulasi PR3 tertinggi terdapat pada perlakuan 0,5% dan 0,7% dibandingkan dengan perlakuan lain dan kontrol. Berdasarkan hasil tersebut, perlakuan kitosan lebih berperan sebagai penghambat makan kutudaun daripada sebagai penginduksi ketahanan tanaman.KeywordsBCMV; Kutu daun; Pathogenesis-related protein; PCR; Vigna sinensis L.AbstractBean common mosaic virus (BCMV) is an important virus on beans in Indonesia. One of methods to control BCMV is by chitosan. The previous report showed that commercial chitosan was able to suppress BCMV infection transmitted by Aphis craccivora with an unknown mechanism. This study aimed to examine the mechanism of chitosan in suppressing the transmission of BCMV by A. craccivora. Chitosan used in this research is a pure chitosan with a concentration of 0.1%–1.1% and 0.9% of commercial chitosan as a comparison. Chitosan is applied by spraying the leaves at one day before the transmission of BCMV. BCMV transmitted by using three viruliferous aphids. The incubation period of virus, disease incidence, and severity, virus accumulation in plants and aphids by ELISA were observed, BCMV CP, PR1, and PR3 genes was detected by RT-PCR. In general, chitosan treatments suppressed the transmission of BCMV by A. craccivora. The incubation period ranges from 7–9 days. The pure chitosan treatments suppressed the disease incidence and severity ranged from 40%–80% and 35.71%–78.57%, respectively depends on concentration of chitosan. The commercial chitosan inhibited disease incidence and severity up to 100%. The treated plants at concentration 0.9% either pure or commercial chitosan showed accumulation of BCMV significantly lower in compared with untreated control plants, i.e. 0.9% in commercial chitosan had ELISA absorbance value (NAE) of 0.26 ± 0.29 and pure chitosan 0.9% had NAE of 1.15 ± 1.69 while the untreated control had an NAE of 3.13 ± 0.17. Further, BCMV were detected aphids which feed on treated plants during inoculation feeding period, indicating virus left over on aphids. Amplification of BCMV CP gene by RT-PCR showed positively amplified by all treatments except commercial chitosan treatment. PR1 gene are not amplified, whereas PR3 gene amplified in all the treatments, but the accumulation higher on treated plants at concentration 0.5% and 0.7% in compare with other treatments. Based on those results, chitosan treatment suppress the BCMV transmission by aphids due to the role of chitosan as anti-feedant which hampered aphids transmit the virus during inoculation feeding period rather than as resistance inducer.
Diversity of Oribatids (Acari) at different land use types in Mentebah, Kapuas Hulu, West Kalimantan Endang Sulistyorini; Rahayu Widyastuti; Sugeng Santoso
Journal of Degraded and Mining Lands Management Vol 5, No 4 (2018)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.273 KB) | DOI: 10.15243/jdmlm.2018.054.1355

Abstract

Kalimantan forests are mostly managed by human. Deforestation will affect the ecosystem and species inside. Oribatids are the most abundant soil mesofauna. They have an important role in decomposition of organic matter in the soil. Here, we investigated the effect of six different land use types (i.e. primary forest, secondary forest, jungle rubber, slash and burn, young fallow and old fallow) and evaluated the effect of environmental factors on the abundance and diversity of oribatids. The oribatids were collected using transect method along 100 m with 10 sampling points with the soil depth of 0-5 cm. Oribatids were extracted using Berlese Funnel Heat Extractor. Identification of oribatids was done to family level and diversity index was determined according to Shannon's diversity index. As much as 36 families of oribatids were recorded from the site at Mentebah, Kapuas Hulu. Oribatids in the jungle rubber showed the highest abundance (592.5 individuals/m2), followed by secondary forest (317.5 individuals/m2), primary forest (287.5 individuals/m2), slash and burn (195 individuals/m2), young fallow (157.5 individuals/m2) and old fallow (142.5 individuals/m2). The value of diversity index according to Shannon Wiener (H’) ranged between 1.71-2.64 or categorized as moderate diversity values. The results of the research showed that there were strong coefficient correlation values of some families of oribatids with soil pH, C-organic, N total, C/N ratio, water content and soil temperature
Study of Oribatids population on three types of land use at PT Nusantara VIII Plantation, Cisarua Sub-district, Bogor, West Java Deseriana Bria; Rahayu Widyastuti; Sugeng Santoso
Journal of Degraded and Mining Lands Management Vol 6, No 2 (2019)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (749.673 KB) | DOI: 10.15243/jdmlm.2019.062.1667

Abstract

Most of the forest area of PT Perkebunan Nusantara VIII have been converted to the plantation (tea, cacao, coffee) and agriculture, such as crops (intercropping of oranges and pineapple) areas. The forest conversion will affect soil biodiversity, which will reduce soil mesofauna population, such as the Oribatids group. Oribatids is one of the soil mesofauna which has a very important role in the soil as a decomposer. Because of its important role and their huge numbers in the soil, Oribatids can be used as a bioindicator of soil fertility. This study aimed to elucidate the abundance and diversity of Oribatids and the relationship between soil properties and population of Oribatids in three types of land use at PT Perkebunan Nusantara VIII. Soil and litter samples were taken in three different types of land use (tea gardens, intercropping, and secondary forests) using a simple random sampling method with a distance of each of the 15 sampling points of 100 m at a soil depth of 0-5 cm. Soil and litter samples were extracted using Berlese Funnel Heat Extractor. Oribatids identification was carried out until the family level, and the Oribatids diversity index were determined according to Shannon's diversity index. The identification results obtained in the three types of land use amounted to 24 families from 172 families found previously. The highest abundance of Oribatids was found in secondary forests both in the soil and litter layer (169.85 and 428.87 individuals/m², respectively), the lowest abundance of Oribatids was found in intercropping both in the soil and litter layer (89.17 and 229.30 individuals/m², respectively). According to Shannon Wiener (H'), the diversity index value ranges from 1.48-1.85 or it was categorized as a low-medium diversity value. The results of this study indicated that there was a positive correlation coefficient value from several families of Oribatids with soil pH, organic C, total N, C/N ratio, water content, and soil temperature.
Kelimpahan, Biologi, dan Kemampuan Pemangsaan Oligota sp. (Coleoptera: Staphylinidae), Kumbang Predator Tungau pada Tanaman Ubikayu Widyantoro Cahyo Setiawan; Sugeng Santoso
Agrovigor Vol 12, No 1 (2019): Maret
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (548.502 KB) | DOI: 10.21107/agrovigor.v12i1.5090

Abstract

Pengendalian hayati dilakukan untuk mengendalikan tungau salah satunya dengan agen hayati seperti serangga predator. Penelitian ini bertujuan memberikan informasi tentang kelimpahan, biologi, dan potensi pemangsaan kumbang predator tungau Oligota sp. pada tanaman ubi kayu. Tungau dan kumbang Oligota sp. yang diperoleh dilapang dipelihara sampai menghasilkan telur dan diamati setiap perkembangan stadianya. Pengujian predasi kumbang predator dilakukan menggunakan larva instar 3 kumbang Oligota sp. dengan cara dimasukkan kedalam cawan dan diberi tungau dengan perlakuan sebanyak 5, 10, 15, 20, dan 25 imago tungau. Pengamatan dilakukan selama 3 jam, 6 jam, dan 24 jam dilakukan dengan 10 kali ulangan. Kumbang ini memiliki siklus hidup dari telur sampai mati pada imago jantan rata-rata selama 36.021 hari, sedangkan betina 37.774 hari. Rata-rata dari telur yang dihasilkan semua pasangan sebanyak 22.923 telur. Kumbang Oligota sp. memiliki kemampuan predasi memangsa tungau dalam sehari rata-rata sebanyak 18 ekor. Predator tungau yang paling banyak ditemukan dilapang yaitu tungau predator. Kata kunci: biologi, kelimpahan, kumbang predator, tungau.
Ketahanan Empat Kultivar Ubi Kayu terhadap Tetranychus kanzawai KISHIDA (Acari: Tetranychidae) Sugeng Santoso; Widi Astuti
Agrovigor Vol 12, No 2 (2019): September
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.899 KB) | DOI: 10.21107/agrovigor.v12i2.5741

Abstract

Tungau merah (Tetranychus kanzawai Kishida) merupakan hama penting pada ubi kayu. Hama tersebut menyebabkan kehilangan hasil sebesar 95%. Penggunaan kultivar merupakan faktor yang mempengaruhi kehilangan hasil. Kultivar ubi kayu yang tahan terhadap tungau merah dapat digunakan sebagai salah satu alternatif pengendalian. Penelitian ini bertujuan mengetahui ketahanan kultivar Manggu, Roti, Jimbul, dan Mentega terhadap T. kanzawai. Penelitian di rumah kaca dilakukan untuk mengetahui intensitas kerusakan pada kultivar Mannggu, Roti, Mentega, dan Jimbul. Pengamatan biologi T. kanzawai dilakukan di laboratorium. Hasil pengamatan menunjukkan bahwa setiap kultivar menunjukkan ketahanan terhadap T. kanzawai yang berbeda-beda. Kultivar Manggu menunjukkan intensitas kerusakan paling rendah dan kultivar Mentega menunjukkan intensitas kerusakan paling tinggi. Pada kultivar Manggu T. kanzawai menunjukkan waktu perkembangan yang lebih panjang dan memiliki keperidian yang lebih rendah.
Parameter Neraca Hayati dan Pertumbuhan Populasi Kutu Putih Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) pada Dua Varietas Ubi Kayu Nila Wardani; Aunu Rauf; Wayan Winasa; Sugeng Santoso
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 14 No. 1 (2014): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.017 KB) | DOI: 10.23960/j.hptt.11464-70

Abstract

ABSTRACTThe life history and population growth parameters of mealybug Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) on two cassava varieties. The development, reproduction, and population growth parameters of the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) on two cassava varieties were studied in laboratory. The varieties tested were UJ-5 with high cyanide content (>100 mg per kg) dan Adira-1 with low cyanide content (27.5 mg per kg). Our research revealed that P. manihoti performances were highly affected by cassava varieties. Incubation period of eggs of P. manihoti were 7.93 ± 0.09 and 8.33 ± 0.11 days, nymphal development periode 12.32±0.13 and 15.67 ± 0.13 days, respectively on UJ-5 and Adira-1. Fecundity averaged 386.37 ± 5.83 on UJ-5 and 318.67±2.81 eggs on Adira-1. Intrinsic rate of increase (rm) were 0.258 ± 0.001 on UJ-5 and 0.220 ± 0.001 on Adira-1. Mean generation time (T) on UJ-5 and Adira-1 were 22.795 ± 0.050 and 25.532 ± 0.047 days, repectively. Our findings showed that variety UJ-5 was more suitable for development and population growth of the cassava mealybug.
Statistik demografi Dolichotetranychus floridanus Banks pada dua kultivar nanas (Ananas comosus (L.) Merr.) Ariffatchur Fauzi; Sugeng Santoso; Ali Nurmansyah
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 10 No. 4 (2020): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.10.4.660-667

Abstract

Pineapple is one of important fruit crops in Indonesia. One of important problems in pineapple production is pest infestation.. This study aims to investigate the biology, demography, and life cycle of Dolichotetranychus floridanus Banks on two pineapple cultivars (Queen and Cayenne). Observation of mite development (eggs-adults) were conducted every 6 hours. Adults were observed everyday to record the fecundity. The life table was constructed from the survivor and fecundity of D. floridanus. Based on this table, the variables of population growth, including gross reproduction rate (GRR), net reproductive rate (R0), mean generation time (T) and increase intrinsic rate (r) were determined. The results showed that the GRR, R0, and r of D. floridanus in the Queen cultivar were higher than Cayenne cultivar, while the T in the Queen cultivar was lower. Queen cultivar more suitable for D. floridanus than Cayenne cultivar.
Pengendalian Aphis craccivora Koch. dengan kitosan dan pengaruhnya terhadap penularan Bean common mosaic virus strain Black eye cowpea (BCMV-BlC) pada kacang panjang Dita Megasari; Tri Asmira Damayanti; Sugeng Santoso
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.2 KB) | DOI: 10.5994/jei.11.2.72

Abstract

Aphis craccivora is one of the important pests on yard long bean. It causes direct damage and also has an indirect effect as insect vector of the Bean common mosaic virus (BCMV). The research was done to test the effectiveness of chitosan in suppressing aphid population growth, feeding preference and its ability in transmiting BCMV. Chitosan with concentration ranging of 0.1–1.0% were applied on leaves using spraying method at 1 day before BCMV transmission. BCMV was transmitted by using 3 individuals of viruliferous aphids on each plant. Results show that chitosan treatments on leaves or plants significantly suppressed the population and feeding preferences of A. craccivora. Further, treated plants showed lower disease incidence, severity and BCMV titre significantly compared with untreated control plants. The positive effects of chitosan in suppressing population growth as feeding preferences and BCMV transmission might be due to the anti-feedant effect of chitosan on A. craccivora. Based on the result, chitosan at concentration 0.9% is the most effective concentration in suppressing BCMV and its vector A. craccivora.