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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Lingkungan Jurnal Ilmu-Ilmu Pertanian Indonesia AGRIVITA, Journal of Agricultural Science JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA JMM (Jurnal Masyarakat Mandiri) Seminar Nasional Lahan Suboptimal PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura BIOVALENTIA: Biological Research Journal Andalasian International Journal of Entomology

Chandra Irsan

Universitas Sriwijaya

Author-ID : 288663

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Public Health Social Sciences Other

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KOMUNITAS ARTHROPODA TANAH DI KAWASAN SUMUR MINYAK BUMI DI DESA MANGUNJAYA, KECAMATAN BABAT TOMAN, KABUPATEN MUSI BANYUASIN, PROVINSI SUMATERA SELATAN Muli, Risda; Irsan, Chandra; Suheryanto, Suheryanto
Jurnal Ilmu Lingkungan Vol 13, No 1 (2015): April 2015
Publisher : School of Postgraduate Studies, Diponegoro Univer

KERAPATAN DAN VIABILITAS KONIDIA BEAUVERIA BASSIANA DAN METARHIZIUM ANISOPLIAE PADA MEDIA IN VITRO PH RENDAH Rizkie, Lilian; Herlinda, Siti; ., Suwandi; Irsan, Chandra; ., Susilawati; Lakitan, Benyamin
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 17, No 2 (2017): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Conidial density and viability of Beauveria bassiana and Metarhizium anisopliae grown on the low-pH in vitro medium. Liquid bioinsecticide with active ingredient from conidial entomopathogenic fungus has major constraints, namely short shelf life due to declining conidial viability and density is caused by low pH in the bioinsecticide carrier. This experiment aimed to measure the loss of conidial viability and density of Beauveria bassiana and Metarhizium anisopliae isolates grown on in vitro medium with low pH. Entomopathogenic fungus isolates were used as much as 28 isolates grown on in vitro medium at low pH, namely pH 5, 4, 3, and 2. The results showed that the fungus isolate that had the highest conidial density on in vitro medium at pH 5 was found on isolates of B. bassiana with code BPcMs (2.583 x 109 conidia mL-1), while the lowest one was found on isolates of B. bassiana with code of BWS Pantura (0.825x109 conidia mL-1). All isolate conidial density from in vitro medium with pH 2 decreased regularly. Conidial density of BPcMs isolate decreased to 2.483 x 109conidia mL-1, as well as BWS Pantura isolate also decreased to 0.425x109 conidia mL-1. The highest conidial viability at pH 5 was found on isolates of B. bassiana with code of BPcMs (51.572%), while the lowest conidial viability was found on isolate of B. bassiana with BTmPc code (15.040%). At pH 2, almost isolates tested had low conidial viability. The conidial viability of isolates BPcMs decreased to 47.037%%, while the isolates BTmPc also decreased to 12.778%. Therefore, the lower of the pH of the in vitro medium was, the lower of conidial viability and density of B. bassiana and M. anisopliae was

Arboreal Entomophagous Arthropods of Rice Insect Pests Inhabiting Adaptive Vegetables and Refugia in Freshwater Swamps of South Sumatra Karenina, Tili; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v0i0.2283

The plants surrounding rice field serve as a habitat and niche for entomophagous arthropods. This study aimed to identify the entomophagous arthropod species and to analyze their abundance and community in vegetables and refugia grown in the rice field. The field was surrounded by 4 species of refugia (Zinnia sp., Tagetes erecta, Cosmos caudatus, and Sesamum indicum) and 4 species of vegetables (Vigna unguiculata, Momordica charantia, Cucumis sativus, and Luffa acutangula). The arthropod found were 67 species of predatory arthropods and 22 species of parasitoids. The predatory arthropods were mostly found in rice (51 species) followed by Zinnia sp. (15 species), and M. charantia (9 species). Parasitoid species were dominantly found in rice (19 species), Zinnia sp. (7 species), and M. charantia (6 species). The predatory arthropods mostly found were Tetragnatha javana, Tetragnatha virescens, and Paederus fuscipes, while the dominant parasitoids were Cardiochiles sp., Elasmus sp., and Snellenius sp. The parasitoid species composition in rice was more similar to those in bitter melon and zinnia. The composition of predatory arthropod species in rice was similar to those in all vegetables and refugia, except in cowpea. Zinnia sp. and M. charantia were the most chosen habitat by entomophagous arthropods.

DIVERSITY OF SOIL ARTHROPOD IN GREEN BARRIER AREA PT. PUSRI Hidayat, Arif; Zulkifli, Hilda; Irsan, Chandra
BIOVALENTIA: Biological Research Journal Vol. 2 No. 1 (2016)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

The research was conducted to inventory and identify as well as acknowledge the correlation between vegetation type with soil arthropods in the Green Barrier area of PT Pusri. PT. Pusri green Barrier area is 28 hectares and dominated by 10 types of vegetation, such as, the Angsana (Pterocarpus indicus Wild), Bambu (Bambusa Sp), Beringin (Ficus benyamina), Buah Roda (Hura crepitans L), Jati (Tectona grandis L), Kelampayan (Neolamarckia cadamba) , Ketapang (Terminalia catappa L), Mahony (Swietenia macrophylla King), Pulai (Alstonia scholaris), and Sengon (Paraserianthes falcataria L). Soil arthropods were collected by using pit fall traps and funnel barlese-tullgren in every type of vegetation, between July-August 2015. Identification of arthropod genera Identification has been done in Entomology Laboratory of the Agriculture Plant Disease Faculty Sriwijaya University, and analysis of soil organic in the Laboratory of Soil Faculty of Agriculture Sriwijaya University. The results were obtained into 3 classes of soil arthropods belonging to the 10 orders, 28 families and 35 genera. The diversity index value of soil arthropods in various types of vegetation is classified moderately (H= 1-3), and no type of soil arthropods were dominant, mean that soil arthropods with different types spread over in the various types of vegetation in the area of Green Barrier PT. Pusri. Light intensity abiotic factors play an important role in the life of the soil arthropod communities in vegetation Sengon (Paraserianthes falcataria L) with a correlation coefficient 1.00Keywords: soil arthropods, community structure, a biotic factors, Green Barrier PT. Pusri

THE EXISTENCE SPESIES OF PASSIONFLOWER (Turnera subulata J.E SM. AND Turnera ulmifolia L.) ON PALM OIL PLANT (Elaeis guineensis J.) AGAINST TO THE DIVERSITY OF ENTOMOFAG AND PHYTOPHAGE INSECTS Hidayat, Ryan; Irsan, Chandra; Setiawan, Arum
BIOVALENTIA: Biological Research Journal Vol. 4 No. 1 (2018)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

The research was purposed to inventory and identification types of entomofag and phytophage insects onÂ Passionflower Flower Plants in the area of PT. South Tania Branch East Burnai I. The area of research in PT. Tania Selatan East Iango Branch I isÂ Â± 20 hectares, dominated by two species ofÂ Passionflower Flower, there areÂ Passionflower Yellow Flower (Turnera subulata J.E SM.) andÂ Passionflower White Flower (Turnera ulmifolia L.). Entomofag and phytophage insects were collected using d-vaccum, and sweep net in every kind ofÂ Passionflower Flowers, started July until August 2017. The identification of entomofag and phytophage insects were done in the University of Sriwijaya Postgraduate Laboratory. The results of the study were 8 orders, 34 families and 48 species on Turnera subulata plants, and 9 orders, 26 families, 36 species on Turnera ulmifolia plants. The value of diversity index from entomofag and phytophage insects in Turnera subulataÂ were 2.912 plant and the value of diversity index from entomofag and phytophage insects in Turnera subulata plants were 2.603.

THE DIVERSITY OF PHYTOPHAGE AND ENTOMOPHAGE INSECT SPECIES IN SUGARCANE PLANTATIONS PLANTED WITH FLOWERING PLANTS Azim, Saida Fitriani; Irsan, Chandra; Pujiastuti, Yulia
BIOVALENTIA: Biological Research Journal Vol. 6 No. 1 (2020)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

This study aimed to know the influence of planting the flowering plants in sugarcane plantation on the index value of diversity, domination, and the eveness of phytophage and entomophage insect species in sugarcane plantation. This study was done on two-month and six-month sugarcane of PT.Â Perkebunan Nusantara VII Cinta Manis District. The research location is located in Ketiau Village, Lubuk Keliat District, Ogan Ilir Regency, South Sumatra. The study was conducted from July to December 2018. Insects that came to flowering plants were collected by using fitfall traps, nets, and direct capture of insects that came. The results showed that the age of sugarcane affected the diversity of Entomophage and Phytophage insect species that came to the flowering plants. At 2-moth-old sugar cane plantations were found 42 species (388 individuals) and 6-month-old sugarcane plantations were found 41 species (284 individuals). The diversity of Phytophage and Entomophage species that came to flowering plants inÂ the 2-month-old sugarcane plantations was almost the same as in the 6-month-old sugarcane plantations. Phytopage species diversity index values were 2,826 and 2,548, while Entomophage were 2,564 and 2,867.

Effectiveness Formulation of Tobacco and Tannin Fermentation Extract against Aphids (Aphis gossypii Glover) on Curly Red Chilli Latutoibin, Risal; Suwandi, Suwandi; Irsan, Chandra; Harman, Hamidson; Suparman, Suparman; Ahmad , Muslim
BIOVALENTIA: Biological Research Journal Vol. 10 No. 1 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.1.2024.436

Aphids is one of the main pests that attack curly red chili plants. Bioinsecticides can be an alternative to synthetic insecticides in controlling aphids. Tobacco leaf extract and tannin can act as insecticides against various types of insect pests. The aim of this study was to determine the effectiveness of formulations containing fermented mixtures of tobacco leaves and tannin as bioinsecticides against aphids on curly red chili plants. The efficacy experiment was conducted in a greenhouse arranged in a completely randomized design (CRD) with 5 formulation concentration treatments, namely 10%, 5%, 2.5%, 1.25%, and 0% (water), with 5 replications. The treatment was carried out by directly spraying the formulation liquid onto the underside of leaves infested with aphids. The results showed that the tobacco and tannin formulation treatments significantly reduced aphid populations, particularly at the 5% and 10% concentration treatments. The efficacy of population suppression reached 92% after 3 days for the 10% concentration and suppressed the population by 93% after 5 days of application for the 5% concentration. After 7 days of application, the efficacy of aphid population suppression was 99% and 100%, respectively, for the 10% and 5% concentrations. The LT50 values for population suppression occurred after 1.18 and 2.67 days for the 10% and 5% concentrations, respectively. The fermented mixture of tobacco and tannin formulations has the potential to be used as a bioinsecticide for controlling aphids.

Effects of holy basil (Ocimum sanctum) on viral disease of chili (Capsicum annum L.) under mixed crop cultivation Arsi, Arsi; SHK, Suparman; Lailaturrahmi; Hamidson, Harman; Pujiastuti, Yulia; Umayah, Abu; Gunawan, Bambang; Pratama, Rahmat; Irsan, Chandra; Suwandi
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 23 No. 2 (2023): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.22349-57

Chili is one of the important commodities in Indonesia. Chili cultivation faces many obstacles, leading to a decrease in production, such as virus infections. Yellow leaf curl and curly top viruses are groups of viruses that are often found in chili fields. This research was conducted to investigate the effect of intercropping (basil-chili) in suppressing viral diseases, especially yellow leaf curl and curly top viruses. A Randomized block design was used for this research, including intercropping and monoculture. The parameters observed in this study included disease incidence and intensity, the number and weight of chilies. Symptoms of virus infection include leaf curl, yellowing, and stunting. The disease has been reported to be transmitted by insect vectors, such as Aphis gossypii and Bemisia tabaci. The results showed that the incidence and intensity of yellow leaf curl and curly top virus diseases in chili pepper and basil plants were not significantly different in each treatment. The number of healthy chilies and their weight were also not significantly different. Damaged chilies are fruits that have been attacked by fruit flies. Basil intercropped with chilies attracts fruit flies, which affects the quantity and weight of the harvested chilies. The population of B. tabaci was significantly different in each treatment, while A. gossypii did not show significant differences among the treatments. Intercropping basil and chili increased the population of A. gossypii, while the population of B. tabaci decreased in this treatment. These two insect pests are vectors for yellow leaf curl and curly top viruses.

Pengaruh Biostimulan terhadap Intensitas Powderymildew pada Labu Kuning di Desa Tanjung Pering, Kabupaten OganIlir Afifah, Miftah; Nisa, Nabila Aulia; Lisdiana, Lisdiana; Suwandi, Suwandi; Muslim, A.; Arsi, Arsi; Gunawan, Bambang; Irsan, Chandra; Pratama, Rahmat
Seminar Nasional Lahan Suboptimal Vol 11, No 1 (2023): Prosiding Seminar Nasional Lahan Suboptimal ke-11 “Optimalisasi Pengelolaan Lah
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Afifah, M., Nisa.N.A., Lisdiana, L., Suwandi, S., Muslim,A., Arsi, A., Gunawan, B., Irsan, C., & Pratama, R. (2023). Impact of biostimulants on the intensity of powderymildew disease in yellow pumpkin in Tanjung Pering Village, OganIlir Regency. In : Herlinda S et al.(Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-11 Tahun 2023, Palembang 21 Oktober 2023. (pp.285-297).Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Pumpkin (Cucurbita moschata D.) can be used for various food preparations and contains high carotenoids. But now pumpkin production has decreased by 40% per year due to powdery mildew (Eryshipe cichoracearum). Symptoms of powdery mildew disease are marked white spots on the surface of the pumpkin leaves like flour. Biostimulants are believed to affect prevention of disease and pest attacks in the field. Purpose of this study was to determine the effect of biostimulants on the intensity of powdery mildew attacks on pumpkin and pest attacks. Research selected vegetative phase, observations made in the morning with the calculation of the percentage of powdery mildew disease using Natawigena formulation. There are 4 treatments, namely control, WB , RL and RL+WB , each treatment is 10 repetitions, 4x applications with a frequency of 1x a week, 5X observations.Results of the 2nd week the intensity of the disease increased due to rain after application with moist environmental conditions that support the growth of fungi. The effect of the 3 biostimulant treatments, can reduce the intensity of powdery mildew on pumpkin, was proven on the 3rd to 5th week, which is according to the data % severity of powdery mildew disease always decreases with a percentage of control that continues to increase. The percentage of influence of the greatest effectiveness in the treatment of WB, which is 95% powdery mildew and 2% Aulachopora similis pest control. In the application should see the weather conditions, so that the biostimulant applied can be optimally affected.

Serangga yang Ditemukan Pada Beberapa Gulma di Sekitar Pertanaman Jeruk (Citrus sp.) di Kecamatan Ogan Komering Ilir, Sumatera Selatan Irsan, Chandra; Anggraini, Erise; Riana, Nanda; Mawarni, Aprilliyah; Setiawan, Irenius Tegar; Harun, M. Umar
Seminar Nasional Lahan Suboptimal Vol 11, No 1 (2023): Prosiding Seminar Nasional Lahan Suboptimal ke-11 “Optimalisasi Pengelolaan Lah
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Irsan C, Anggraini E, Riana N, Mawarni A, Setiawan I.T., Harun, M.U. 2023. Insects found in some weeds around citrus (Citrus sp.) plantations in Ogan Komering Ilir Regency, South Sumatera. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-11 Tahun 2023, Palembang 21 Oktober 2023. (pp. 742-748). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Citrus plants (Citrus sp.) are horticultural crops, and fruit commodities from the Rutaceae family. The presence of weeds around citrus plants provides an alternative host for other insects and attracts natural enemies of citrus pests. This research was conducted to find out what insects were found in weeds around citrus plants in Ogan Komering Ilir Regency, South Sumatra, Indonesia. The sampling method used in this research was the purposive sampling method. Observations were carried out from June to October 2023 in Ogan Komering Ilir Regency, South Sumatra, Indonesia. The results of observations showed that in the weeds around the citrus plants, 4 species of insects were found belonging to 3 families and 3 orders. The 4 species are Monomorium minimum, Oecophylla smaragdina, Dysdercus cingulatus, Oxya sp. The most frequently found species was M. minimum from the Formicidae family with a total of 846 individuals and the fewest are Oxya sp. (Orthoptera: Acrididae) with 6 individuals.

Co-Authors A. Muslim Abu Umayah Aditya Warman Afifah, Miftah Agustin, Hera Agustin, Selvia Ahmad , Muslim Ahmad Muslim Amalia Rahmadani, Shinta Apriliani Putri, Ochi Apriyani, Mella Arif Hidayat ARINAFRIL ARINAFRIL Arrwais, Rhani Arsi, Arsi Artika, Aziza Arum Setiawan Astuti Kurnianingsih, Astuti Azim, Saida Fitriani Bambang Gunawan Benyamin Lakitan Dwiyanti, Hana Elfita Ellisa Riyanti, Tia Erise Anggraini, Erise Fadli, Rahmad Fani, Gio Hamidah Aulia Hamzah Hasyim Harman Hamidson Harman, Hamidson Hefi Sugiarto, Muhammad HERU LISTIONO Hidayat, Ryan Hilda Zulkifli Hong Lau, Wei Kamaluddin, Totong karenina, Tili Khabibah, Nuril Khotimah, Dini Husnul Laila, Mey Rahma Lailaturrahmi Latutoibin, Risal Lisdiana Lisdiana M. Umar Harun Margaretha, Shera Marieska Verawaty Marlinda, Astry Nurhalifa Mawarni, Aprilliyah Milinia Puspita Sari, Jelly Mirsya, Sabryna Aulia Mulawarman Mulawarman Nisa, Nabila Aulia Nuraini, Feni Nurhayati Damiri Oktaviani Oktaviani Oktaviani oktaviani Pratama, Risky Yuda Puspita Sari, Despi Rahmat Pratama, Rahmat Riana, Nanda Risda Muli, Risda Riswan Riswan Rizkie, Lilian Salam, Beni Saputra, Eka Bayu Saputra, Muhamad Ridho Saripudin Saripudin Sefrilla, Marlin Setiawan, Irenius Tegar SHK, Suparman Shobiha, Salma Naswa SITI HERLINDA Sofia Sandi Suheyanto Suheryanto Suparman Suparman SUPLI EFFENDI RAHIM Susilawati . Susilawati, Susilawati Suwandi Suwandi . Suwandi Suwandi Syabella, Tantri Tiran Gunasena, Mahesh Umar Harun, Umar Umayya, Larasati Nur Weri Herlin Wiwik Handayani YULIA PUJIASTUTI

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