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Quality Control of Mass Rearing of Egg Parasitoids of Yellow Rice Stem Borer Scirpophaga Incertulas Walker Wilyus, Wilyus; Nurdiansyah, Fuad; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia
International Journal on Advanced Science, Engineering and Information Technology Vol 3, No 1 (2013)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

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Abstract

The study was conducted to find out: suitability of eggs of Corcyra cephlalonica Stainton as a factitious host of S. incertulas egg parasitoids and techniques of parasitoid stock provision, serially conducted from February 2011 to December 2011. The researches were carried out in four laboratory experiments, consisting of the study of ultraviolet (UV) irradiation on C. cephalonica eggs; suitability of C. cephlalonica eggs as a factitious host of Telenomus rowani Gahan, Trichogramma japonicum Ashmead and Tetrastichus schoenobii Ferriere; storage method of C. cephalonica eggs; and storage method of parasitoids. The research design was suited to the research needs. The results showed that; The C. cephalonica eggs irradiated by the minimum of 28.48 minute 15 watt ultraviolet (UV) at a distance +15 cm between the lamp and the eggs could suppress the hatching eggs to zero (no emerged larvae). Among the three species of egg parasitoids of S. incertulas found in Jambi Province, only T. japonicum could be rearing on C. cephalonica eggs. The relationship between storage duration of C. cephalonica eggs irradiated by the 30 minutes 15 watts UV at 5oC and the emerged T. japonicum wasps was expressed by the equation of y = 31.04-1.151x, R²=0.865, P=0.000. The storage of T. japonicum pupae for six weeks at 5°C did not reduce the number of emerged T. japonicum wasps. The emerged wasps reduced significantly if the storage duration of T. japonicum pupae was increased to seven weeks or more.
Aplikasi Ekstrak Kompos Meningkatkan Hasil dan Menekan Penyakit Padi Sistem Ratun di Sawah Pasang Surut Kabupaten Banyuasin Suwandi, Suwandi; Ammar, Muhammad; Irsan, Chandra
Jurnal Lahan Suboptimal Vol 1, No 2 (2012)
Publisher : Jurnal Lahan Suboptimal

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Abstract

Suwandi et al. 2012. Application of Extract Compost Increased Yield and Suppressed the Diseases of Ratoon Rice Crop in Tidal Swamp of Banyuasin Regency. JLSO 1(2):116-122.A field study was conducted to test the effects of the biofertilizer preparations on yield and diseases of ratoon rice crop in the reclaimed tidal swamp of Telang II, Banyuasin Regency of South Sumatra. The biofertilizer were prepared either as dormant inoculant in liquid formulation or active inoculant in compost extract. Both preparations contain chitinolytic, cellulolytic and phosphate solubilizing bacterial community. The result showed that the yield of ratoon crops of Ciherang rice variety in the suboptimal land increased by 67% (923 kg/Ha) in response to single spraying of the compost extract. The ratoon sprayed with the compost extract had a lower incidence of neck blast and panicle blight and produced less empty grains compared to non-sprayed control. The application of extract compost appears to be a feasible method for increasing production of ratoon rice in tidal swamps.
Artropoda Predator Penghuni Ekosistem Persawahan Lebak dan Pasang Surut Sumatera Selatan Khodijah, Khodijah; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia; Thalib, Rosdah
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Khodijah, S. Herlinda, C. Irsan, Y. Pujiastuti, R. Thalib. 2012. Predatory Arthropods InhabitingFresh Swamp and Tidal Lowland Ecosystem in South Sumatra. J. Lahan Suboptimal 1(1):57-63 Research of predatory arthropods inhabiting fresh swamp and tidal land ecosystem in South Sumatra used survey method. The objective of this reasearch was to identify families of the predatory arthropods found in the fresh swamp and tidal land ecosystem in South Sumatra. Survey occured in January up to March 2012. The predatory arthropods were sampled using net and pitfall trapping. The predatory arthropods found were Insecta and Arachnida. Ordo of predatory insects found were Coleoptera, Dermaptera, Diptera, Hemiptera, Orthoptera, Odonata, and Hymenoptera, while predatory spiders found were ordo Araneae. Predatory arthropods inhabiting paddy canopy were almost trapped by net traps, while soil dwelling arthropods were trapped by pitfall traps. The dominant predatory insects found were families of Carabidae and staphylinidae, while dominant family of spiders was Lycosidae. Key species of the predatory artrhopods found from the fresh and tidal land ecosystem were Pheropsophus occipitalis, Paederus fuscipes, Coccinella arcuata, Pardosa pseudoannulata, Oxyopes sp., Pardosa sumatrana, Verania lineata, Broscus sp., and Chelisoches sp.
Perbandingan keanekaragaman spesies dan kelimpahan arthropoda predator penghuni tanah di sawah lebak yang diaplikasi dan tanpa aplikasi insektisida Herlinda, Siti; Waluyo, Waluyo; Estuningsih, S. P.; Irsan, Chandra
Jurnal Entomologi Indonesia Vol 5, No 2 (2008): September
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

Studies on soil-dwelling predatory arthropods were carried out in lowland areas of South Sumatra, with objectives to analyze the species diversity and abundance of the predatoryarthropods inhabiting fields applied by synthetic insecticide, bioinsecticide, and without insecticide application. The predatory arthropods were sampled using pitfall traps. Indices of diversity and community similarities were applied to analyze the data. Results indicated that the arthropods inhabiting field without insecticide application had the highest diversity and abundance compared to other treatments. Predatory community similarities between those on the field without insecticide application and applied by bioinsecticide were higher compared to the fields applied by synthetic insecticide.
Analisis kemiripan komunitas artropoda predator hama padi penghuni permukaan tanah sawah rawa lebak dengan lahan pinggir di sekitarnya Effendy, Effendy; Hety, Usna; Herlind, Siti; Irsan, Chandra; Thalib, Rosdah
Jurnal Entomologi Indonesia Vol 10, No 2 (2013): September
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

There are approximately 1.4 million hectares of swampy area in South Sumatera, but only 12% of those are being used as farm and plantation.   The purpose of this research was to investigate the similarity of arthropod community inhabiting swampy rice field and its surrounding area. This research was conducted in South Sumatera Province covering regency of Musi Banyuasin and Palembang. Four types of swampy area were selected from each location, i.e. rice field, thicket, bush, and swampy land inhabited by broad-leaf weeds. Pitfall trap used to collect arthropod and it installed at five different times. i.e. 15 days before rice planting, one month, two months, and three months after planting, and 15 days after harvest time. The result showed that relative abundance of predatory arthropod dwelling soil in rice field was 95.03%, and habitat surrounding rice field was 95.12–97.21%. The level of similarity of arthropod species between rice field ecosystem and its surrounding area ranged from 0.73 to 0.84.   Thus, the surrounding area of rice field probably can be used as catchment area of predatory arthropod and other pests during planting season.
Bioesai bioinsektisida Beauveria bassiana dari Sumatera Selatan terhadap kutu putih pepaya, Paracoccus marginatus Williams & Granara De Willink (Hemiptera: Pseudococcidae) Herlinda, Siti; Darmawan, Komang Agus; ., Firmansyah; Adam, Triani; Irsan, Chandra; Thalib, Rosdah
Jurnal Entomologi Indonesia Vol 9, No 2 (2012)
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

In fresh swamp areas of South Sumatra, papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae) could cause severe damage to young papaya trees and decreased the fruit quality. The objective of this research was to bioassay test of the bioinsecticide Beauveria bassiana againts nymphs of P. marginatus. B. bassiana was conducted on rice medium. The bioinsecticide was formulated using dried compost, compost gram,  paddy ash,  paddy bran, woody powder, paddy bran mixed with woody powder,  compost enriched with  Trichoderma virens. Controls used were sterile water (control 1) and isolate of B. bassiana (control 2). Results showed that conidial viability of B. bassiana on control 2 was the highest (46.33%). The viability of control 2 was not significantly different from the formulations with carrier of the paddy bran, the paddy bran mixed with woody powder, and the compost enriched with T. virens. The highest nymph mortality (82.86%) was found on formulation of  compost enriched with T. virens and was significantly different from other treatments. The lowest  visibly (73.48%) occured on formulation of paddy ash, and was significantly different from other treatments. Mortality on control 1 on average was 29.52%, whereas control 2 averaged of 75.71%. The shortest median lethal time (LT50) (3.55 days) was found on formulation of compost enriched with T.  virens but the longest one (3.73 days) occured on the formulation of paddy ash. Overall, the most effective bioinsecticide was the formulation of compost enriched with T. virens.Key words: bioinsecticide, Beauveria bassiana, Paracoccus marginatus
Analisis kemiripan komunitas artropoda predator hama padi penghuni permukaan tanah sawah rawa lebak dengan lahan pinggir di sekitarnya Effendy, Effendy; Hety, Usna; Herlinda, Siti; Irsan, Chandra; Thalib, Rosdah
Jurnal Entomologi Indonesia Vol 10, No 2 (2013)
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (470.758 KB)

Abstract

There are approximately 1.4 million hectares of swampy area in South Sumatera, but only 12% of those are being used as farm and plantation. The purpose of this research was to investigate the similarity of arthropod community inhabiting swampy rice field and its surrounding area. This research was conducted in South Sumatera Province covering regency of Musi Banyuasin and Palembang. Four types of swampy area were selected from each location, i.e. rice field, thicket, bush, and swampy land inhabited by broad-leaf weeds. Pitfall trap used to collect arthropod and it installed at five different times. i.e. 15 days before rice planting, one month, two months, and three months after planting, and 15 days after harvest time. The result showed that relative abundance of predatory arthropod dwelling soil in rice field was 95.03%, and habitat surrounding rice field was 95.12–97.21%. The level of similarity of arthropod species between rice field ecosystem and its surrounding area ranged from 0.73 to 0.84. Thus, the surrounding area of rice field probably can be used as catchment area of predatory arthropod and other pests during planting season.Key words: rice, rice field, biological control
Studi keberadaan hiperparasitoid dalam mempengaruhi perilaku imago parasitoid pada kutudaun, Aphis gossypii (Hemiptera: Aphididae) Irsan, Chandra
Jurnal Entomologi Indonesia Vol 5, No 1 (2008): April
Publisher : Perhimpunan Entomologi Indonesia

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Abstract

Study Hyperparasitoid Existing Affected to Adul Parasitoid Behavior on Aphid, Aphis gossypii (Hemiptera: Aphididae). In general, hyperparasitoid is needed for establishing food and chain webs, but in contrary, it could become a limiting factor in existing biological control program. An observation to aim positive impact of hyperparasitoid existence has been carried out. Chili plant, Capsicum annuum, Aphis gossypii, Trioxys sinensis parasitoid and Aphidencyrtus sp. were used in this observation. Results showed that hyperparasitoid existence assisted parasitoid distribution. Parasitoids were placed with hyperparasitoids enhanced parasitoid distribution or dispersion two times farther compare to without hyperparasitoids. It was concluded that dispersal behaviour of hyperparasitoid adult was a parasitoid adult’s response to avoid its suppression by the hyperparasitoid and also increase parasitoid’s searching ability.
Tingkat Parasitisasi dan Deskripsi Parasitoid yang Memarasit Aphis gossypii (Glover) (Hemiptera: Aphididae) Asal Agroekosistem Dataran Rendah dan Dataran Tinggi Sumatera Selatan Riyanto, Riyanto; Herlinda, Siti; Umayah, Abu; Irsan, Chandra
Jurnal Lahan Suboptimal Vol 3, No 1 (2014)
Publisher : Jurnal Lahan Suboptimal

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Abstract

The parasitic level research and description of the parasitoid species which were parasitic towards Aphis gossypii (Glover) (Hemiptera : Aphididae ) origin the agroecosystem of the lowland and highland of South Sumatra has not been reported, although this information is needed as a foundation of biological control of A. gossypii in South Sumatra. The purpose of this study was to determine the parasitic level and provide information about the description of the parasitoid which were parasitic towards A. gossypii origin the agroecosystem of the lowland and highland of South Sumatra. Survey and exploration the parasitoid which were parasitic towards A. gossypii conducted at 11 sites in South Sumatra vegetable center.  The identification of parasitoid species was conducted in the laboratory of Entomology Department of the Faculty of Agriculture University of Sriwijaya. The results showed the parasitic level of Aphidius sp. and Diaeretiella rapae was higher during the dry season in both lowland and highland compared to the parasitic level of Aphelinus sp. However, Aphelinus sp. could only spread in the lowland. The main characteristics of Aphidius sp. (Aphidiidae) has shaped antennae filiform and segmented 13. The front wings have a triangular pterostigma. D. rapae, (Aphidiidae) has shaped antennae filiform and segmented 14. The front wings has a triangular pterostigma. The hind wing has a perfect basal cells. Aphelinus sp. (Aphelinidae) has an shaped goblets antennae and eight segmented and the last segments three of the antennae enlarged or club. Marginal venation long wings, while the venation postmarginal and stigma reduction. In addition there are two species of hyperparasitoid which were found to be parasitic towards parasitoid A. gossypii, were Ooencyrtus sp. and Aphiidencyrtus sp. (Encyrtidae) especially in the lowland.
KERAGAMAN FLORA DI LAHAN REKLAMASI PASCA TAMBANG BATUBARA PT BA SUMATERA SELATAN Riswan, Riswan; Harun, Umar; Irsan, Chandra
Jurnal Manusia dan Lingkungan (Journal of People and Environment) Vol 22, No 2 (2015)
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

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Abstract

Penelitian dilaksanakan di lahan reklamasi Air Laya, tambang batubara PT BA Tanjung Enim pada Januari sampai Maret 2013. Tujuan penelitian ini adalah untuk mengetahui struktur dan komposisi flora pada lahan reklamasi pascatambang batubara, PT BA, Tanjung Enim. Petak contoh diletakkan pada lahan reklamasi yang berumur 20, 15, 10 dan 1 tahun. Petak contoh di buat enam petak empat persegi secara net sampling, di mana untuk pohon berukuran 20 m x 20 m; tiang berukuran 10 m x 10 m; pancang berukuran 5 m x 5 m; dan semai dibuat empat persegi berukuran 2 m x 2 m. Hasil penelitian menunjukkan bahwa jenis flora yang dominan pada tingkat pohon dan sebagian pada tingkat pancang pada berbagai umur reklamasi adalah Acacia auriculiformis. Pada tingkat tiang flora jenis jati (Tectona grandis) adalah jenis flora tingkat tiang yang hanya ditemukan pada plot umur 20 tahun dan jenis A. auriculiformis dan Eucalyptus deglupta pada plot umur 15 tahun. Sengon (Paraserianthes falcataria) mendominasi pada tingkat pancang pada plot umur 1 tahun. Beberapa jenis flora indigen yang dapat ditemukan di lahan bekas tambang batubara yaitu Leban (Vitex pinnata) dan Keliat (Syzygium spp.) serta Suket kudalang (Oplismenus burmannii) pada tingkat flora bawah yang tumbuh liar. Dominansi oleh flora introduksi (A. auriculiformis) pada berbagai plot umur reklamasi menurunkan flora indigen. Hal ini bisa dilihat dari nilai INP tertinggi secara umum didominasi oleh akasia berdaun kecil (A. auriculiformis) pada umur 20, 15 dan 10 tahun setelah reklamasi tambang.