54 research outputs found
Patogenisitas isolat bakteri entomopatogenik Bacillus thuringiensis diisolasi dari Spodoptera litura terhadap larva Plutella xylostella (Lepidoptera:Plutellidae)
Get PDFPujiastuti Y, SHK Suparman, Sulistyani DP. 2021. Patogenicity of entomopathogenic Bacillus thuringiensis isolated from Spodoptera litura against Plutella xylostella larvae (Lepidoptera:Plutellidae). In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-9 Tahun 2021, Palembang 20 Oktober 2021. pp. 621-627. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI). Diamondback moth, Plutella xylostella is an important insect pest on plants belong to Brassicaceae family. Symptoms of attack is hollow leaves and leave dirt on them. If it is not controlled, the yield loss can reach 80%. Control by using biological agents entomopathogenic bacteria Bacillus thuringiensis may be used to reduce the population of P. xylostella. The purpose of research was to study the pathogenicity of B. thuringiensis isolated from cadaver of Spodoptera litura against P. xylostella larvae in the laboratory. The treatments were two isolates of B. thuringiensis encoded SlBt01 and SLBt03. The experiment was designed with a completely randomized design (CRD) separated between isolates. The treatment consisted of 5 treatments (including control) spore density and 5 replications. Observations were mortality rate and time of death of the test larvae. Results showed the highest mortality was in isolate SlBT01 (61.73%) and in isolate SlBt03 (56.66%). The lowest LT50 values of isolates SlBt01 and SLBt03 were 9.78 days and 9.14 days, respectively. Symptoms of infection in Plutella larvae are changes in body color and eventually die with symptoms of wet rot
Efikasi Bakteri Entomopatogen Bacillus thuringiensis Barliner sebagai Agens Hayati Spodoptera litura Fabricus pada Lahan Pasang Surut dan Rawa Lebak
Get PDFArsi A, PujiastutiY, HerlindaS, SHK Suparman, Gunawan B. 2019. Efficacy of entomopathogenic bacteria bacillus thuringiensis barliner as biocontrol agent against spodoptera litura fabricus in tidal and swampy areas In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang 4-5 September 2019. pp. 254-263. Palembang: Unsri Press. The entomopathogenic bacteria, B. thuringiensis is used as an insect control agent for Spodoptera litura pests in food plants and horticultural plants. This research was conducted to figure out the toxicity of entomopathogenic bacteria B. thuringiensis to S.litura inhabiting tidal and swampy areas. The entomopathogenic bacteria B. thuringiensis was derived from tidal and swampy areas. Isolation, and identification of the bacteria were conducted in the Laboratrory of Phytopathology and the Laboratory of Entomology, Department of Plsnt Pest and Disease, Faculty of Agriculture, Sriwijaya University Indralaya, under laboratory conditions under temperature of 26o C and relative humidity of 79.6%. the results showed that S. litura larvae treated topically with sopres of B. thuringiensis at spore density of 1 x 106sel/mL was varied. The highest larval mortality was foun in PUM isolaste amounted to 100% with LT50 amounted to 0.56 day, while the lowest mortality was found in PIM isolate amounted to 73.3% with LT50 reached 5.46 days.Keywords: lethal time 50, mortality, tested insec
Teknik Budidaya Petani Tanaman Karet (Hevea brasiliensis) terhadap Hama dan Penyakit di Kecamatan Tanjung Batu, Kabupaten Ogan Ilir
Get PDFArsi A, SHK Suparman , Hamidson H, Gunawan B, Pujiastuti Y, Pratama R, Mauluddin M. 2022. Rubber plant (Hevea brasiliensis) cultivation techniques against pests and diseases in Tanjung Batu District, Ogan Ilir Regency. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-10 Tahun 2022, Palembang 27 Oktober 2022. pp. 898-909. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Rubber plant (Hevea brasiliensis) is a plantation crop with high economic value and one of the important agricultural commodities in the international environment and also in Indonesia. Geographical compatibility conditions and soil types that support the growth of rubber plants (Hevea brasiliensis), make farmers in Tanjung Batu District use their land to cultivate rubber plants. Plant-disturbing organisms (OPT) are one of the obstacles encountered in rubber cultivation activities which interfere with growth and affect the yield of rubber latex production. The use of pesticides is mostly done by farmers who think they can get fast and practical results. The purpose of this study aims to evaluate farmers in rubber cultivation techniques against pests and diseases in Tanjung Batu District. This research was conducted from May to July 2022. The method used to observe rubber plants was using a simple purposive sampling method. The results of research on rubber farmers have different planting methods. The observed rubber farmers have the status of profit-sharing land. To increase rubber resistance to pests and diseases, fertilization and sanitation are carried out. Pests and diseases found on farmer's land, namely, leaf fall disease and termite pests
Pengaruh Kultur Teknis terhadap Serangan Penyakit pada Tanaman Oyong (Luffa Acutangula) di Desa Kuripan Kecamatan Empat Petulai Dangku
Get PDFArsi A, SHK Suparman, Hamidson H, Umayah A, Gunawan B, Pujiastuti Y, Pratama R, Pratiwi FA. 2022. The effect of technical culture on disease attacks on oyong (Luffa Acutangula) plants in Kuripan Village, Kecamatan Four Petulai Dangku. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-10 Tahun 2022, Palembang 27 Oktober 2022. pp. 1011-1022. Palembang: Penerbit dan Percetakan Universitas Sriwijaya (UNSRI).The luffa plant/oyong is a fruit vegetable that is widely consumed by Indonesians in the form of fresh fruit The nutritional value of luffa is quite good because this fruit vegetable is a source of vitamins and minerals. Oyong plant is a climbing plant/vine. Oyong plants need a dry climate, with sufficient water availability throughout the season. Agricultural cultivation systems are never free from pests or diseases. In the field of farmers, there is not much knowledge about plant diseases or the causes of the disease itself. For this reason, this research practice aims to determine the effect of intercropping on disease attacks on Oyong (Luffa acutangula) plants. Field practice has been carried out in Kuripan Village, Empat Petulai Dangku District, Muara Enim Regency, South Sumatra Province from May to June 2022. The observation method used in this field practice is the direct observation method in the field which is carried out by determining the land, the land being taken has different cropping patterns. Then determine the plants to be sampled using the diagonal method. The data collected were primary data in the form of direct observation of symptoms in the field and secondary data obtained from farmer interviews. From the observation, there were 2 types of diseases, namely brown spots and virus mosaic
Pengaruh Mulsa terhadap Serangan Hama pada Tanaman Terung (Solanum melongena L.) di Desa Timbangan Kecamatan Indralaya Utara Kabupaten Ogan Ilir
Get PDFArsi A, Gustiar F, Pratama R, SHK Suparman, Hamidson H, Umayah A, Gunawan B, Pujiastuti Y, Riansyah WH, Djulian D, Muhari M. 2022. The effect off mulch on pest attack on eggplant (Solanum melongena L.) in village Timbangan, Subdisctrict Indralaya North, Ogan Ilir City. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-10 Tahun 2022, Palembang 27 Oktober 2022. pp. 1023-1032. Palembang: Penerbit dan Percetakan Universitas Sriwijaya (UNSRI).Eggplant is a type of vegetable that is favored by the community because besides having a good taste, it also contains lots of vitamins and nutrients. In eggplant cultivation, there are several obstacles that must be faced. This obstacle cannot be separated from the attack by plant pests. Plant damage caused by pests results in decreased production due to the growth and development phase of eggplant plants cannot grow and develop optimally. The purpose of this research is to determine the effect of technical culture on the types of pests, population and intensity of pest attacks on purple eggplant (Solanum melongena L.) in Timbangan Village, Indralaya Utara District, Ogan Ilir Regency. The method used includes determining the land, determining sample plots and sample plants, as well as observing population numbers and intensity of pest attacks. The research was conducted in two eggplant fields with different plant ages. The population number and intensity of pest attacks were analyzed using the t test at the 5% confidence level. The pests found in eggplant are Spodoptera litura, Cheilomenes sexmaculata, and Atractomorpha crenulata. Statistical analysis shows that there are significant differences in the two fields due to different cultivation techniques
Inventarisasi Penyakit Pada Jagung (Zea mays L.) di Desa Bakung Kecamatan Indralaya Utara Kabupaten Ogan Ilir Sumatera Selatan
Get PDFTricahyati, T., SHK., Suparman., Hamidson, H., Arsi, A., Agustin, V., Taqiyyuddin, M., Sari, Y.P., Silalahi, M. Y., Isnaini, H. A., Yahya, I. A. (2024). Inventory of diseases in corn (Zea mays L.) in Bakung Village, North Indralaya District, Ogan Ilir Regency, South Sumatra. In: Herlinda S et al. (Eds.),Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang 21 Oktober 2024. (pp. 711–719). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Indonesia is a country with abundant natural resources. Corn is the second main food crop after rice which is very useful for human and livestock life. This plant is also a type of grass plant with a monocotyledon seed type. However, the productivity and various benefits of corn can be disrupted by biotic and abiotic constraints. These biotic constraints are in the form of attacks by plant pests (OPT). This study aimed to evaluate the implementation of integrated OPT management used by corn farmers in Bakung Village, Indralaya District. This research method uses a purposive sampling method and farmer interviews through questionnaires. From the results of the study, three diseases were found in corn fields, namely leaf blight, leaf rust, and leaf spots. The disease samples found were then identified in the Phytopathology Laboratory of the Pest and Disease Department, Faculty of Agriculture, Sriwijaya University. Leaf blight disease is caused by the fungus Exserihilum turcicum, leaf rust disease is caused by Puccinia polysora Undrew, while leaf spot disease is caused by Helminthosporium sp. There are some farmers who implement PTT such as the application of planting distances that facilitate corn field sanitation, besides also inhibiting the transfer of pests and diseases to other corn plants. There are still many farmers who have not implemented Integrated Pest Management (IPM) and still use pesticides. Of the five farmers interviewed in Bakung Village, Indralaya District, Ogan Ilir Regency, South Sumatra, not a single farmer knew about IPM
Pengaruh Spesies Tumbuhan Araceae terhadap Efisiensi Penularan Banana Bunchy Top Virus oleh Pentalonia nigronervosa
Get PDFAraceous plants can serve as alternative host to banana aphid Pentalonia nigronervosa. Research has been conducted to study the effects of Araceous plant species on the efficiency of Banana Bunchy Top Virus (BBTV) transmission by P. nigronervosa as the main vector of the virus. The research was an experiment conducted in Experimental Garden, Department of Plant Protection, Faculty of Agriculture Sriwijaya University from November 2021 to April 2022. The experiment was conducted using 7 species of Araceous plant and one genotype of banana. The results of the research showed that, when serving as alternataive host of P. nigronervosa, all Araceous plants had no effect on the efficiency of BBTV transmission by the aphid. Viruliverous P. nigronervosa    did not lose their virus particles in their body and still had ability to transmit the virus ehen they were transferred from Araceous plant to healthy banana.In cubation period ranged from 25-37,6 days after inoculation and the symptoms appeared mostly on  young leaves
Potency of Bacillus thuringiensis in liquid formulation as a biological agent in controlling larvae of Oryctes rhinoceros (Coleoptera:Scarabaeidae)
Get PDFPropagation of B. thuringiensis in agricultural liquid waste media can be done because the waste still contains nutritional components which contain carbon and nitrogen. The aim of research was to study B. thuringiensis in a liquid formulation with high toxicity against Oryctes larvae. Parameters of observation were spore density, larval mortality and symptoms of both infection or death larvae. Experimental was designed as a completely randomized design with 6 treatments and 4 replications. Oryctes larvae used were 3rd-instar. The treatments were 1). Tofu liquid waste; 2) Tofu Liquid Waste + Bio-urine (1:2); 3) Tofu Liquid Waste + Bio-urine (1:1); 4) Tofu Liquid Waste + Bio-urine (2:1); 5) Bio-urine and 6) NB media (as control). The results showed the highest spore density was found in tofu liquid waste propagation media and biourine (1:2). The highest larval mortality was shown in treatment of Tofu Liquid Waste + Bio-urine (1:2), which was 91.67%. Observations on the symptoms of infection and death in tested larvae were indicated by changes in color of integument and fragility of the larva's body. Bio-insecticide with active ingredient of B. thuringiensis in liquid formulation has potency to be used as biological agent for controlling O. rhinoceros larvae
Inventarisasi Serangga pada Pertanaman Cabai Merah di Kecamatan Air Salek Kabupaten Banyuasin
Get PDFArsi A, Wagiyanti W, Suparman SHK, Pujiastuti Y, Herlinda S, Hamidson H, Gunawan B, Irsan C, Suwandi S, Efendi RA, S Nugraha I, Lailaturrahmi L, Munandar RP. 2020. Inventory of insect insfesting chili cultivation in sub district Air Salek, district Banyuasin, In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Inventory of Insect Infesting Chili Cultivation in Sub District Air Salek, District Banyuasin Capsicum annuum L is one of the important horticultural crops cultivated in Indonesia and has high economic value. Chili plant is never been free from the associated insect activity. This field practice aims to find out the species species and insect population in the red chili crop. The field practice has been carried out at the farmers' chilli crop in Sub District Air Salek, Banyuasin Regency. Insect identification was carried out at the Entomology Laboratory of Plant Pests and Diseases at the Faculty of Agriculture, Sriwijaya University. The implementation was carried out by direct observation using the census method by applying purposive sampling technique and using steiner trap fruit flies. The results showed that the populations of fruit fly in the first land, second and third fields was different for each observation. The fruit flies found were two species i.e. Bactrocera carambolae and Bactrocera umbrosa. There are several insects associated with chili plants, namely Coccineilla transversalis, Menochillus sexmaculatus, Micraspis discolor, Micraspis frenata, Aphis gossypii, Spodoptera litura and Altica cyanae. The number of insect populations in a plant is influenced by biotic and abiotic factors. Whether it's from the condition of the plants around or by the application of pesticides in the chili area
Identifikasi Serangga Hama pada Tanaman Metimun di Desa Bumi Agung, Kecamatan Lempuing, Kabupaten Ogan Komering Ilir, Sumatera Selatan
Get PDFArsi A, Hendra H, Suparman SHK, Pujiastuti Y, Herlinda S, Hamidson H, Gunawan B, Irsan C, Suwandi S, Efendi RA, Nugraha SI, Lailaturrahmi L, Munandar RP. 2020. Pest insect identification on cucumber plants in Bumi Agung village, Lempuing district, Ogan Komering Ilir regency, South Sumatra. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The cultivation of vegetable crops is very much practiced by farmers both in the highlands and in the lowlands. In the cultivation of vegetables, pests and diseases cannot be separated. Pests that attack cucumber plants can be detrimental both in quality and quantity. The purpose of this study was to determine the insect pests that attack cucumber plants. Observations were made by comparing 2 cucumber fields. The comparison of the 2 fields was then carried out using the t test method. The results of observations on cucumber plants in the field were 4 species of insect pests that attack cucumber plants. Insects that attack cucumber plants consist of Diaphania sp., Aulacophora similis, Bemisia tabaci and Liriomyza sp.. The population of insect pests was found only 3 species based on visual observation and the intensity of pest attacks on cucumber plants was found to be 4 species of insect pests that attack these plants. In the t test results on insect populations, the species of Bemisia tabaci were significantly different in land 1 and land 2, while Diaphania sp. And A. Similis is not real different. The intensity of insect pests of Diaphania sp., Aulacophora similis and Liriomyza sp. Unreal different. However, the intensity of the Bemisia Tabaci attack was significantly different. The intensity of insect pests attack on land 1 was 44.76%, while on land 2 was 42.97%. Cultivation of cucumber with technical culture affects insect pests and the intensity of pest attacks
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