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All Journal AGRIPEAT PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Akta Agrosia Bubungan Tinggi: Jurnal Pengabdian Masyarakat Jurnal Abdidas Pengabdian Kampus: Jurnal Informasi Kegiatan Pengabdian Pada Masyarakat Jurnal Kaharati
Rahmawati Budi Mulyani
Program Studi Agroteknologi, Jurusan Budidaya Pertanian, Fakultas Pertanian Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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Journal : Akta Agrosia

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Biodiversity And Arthropod Abundance In Organic Semi Rice In Swamp Lowland in Palangka Raya City Melhanah Manaf; Rahmawati Budi Mulyani; Mario Satrio
Akta Agrosia Vol 24, No 2 (2021)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.24.2.39-44

Abstract

Palangka Raya has the potential for swamp lowland to be used for rice farming. For this purpose, knowledge of arthropod biodiversity is required. The study aims to determine the biodiversity and abundance of arthropods and arthropods dominant in semi-organic rice plantations in swamp lowlands. The study was conducted from September to November 2019 in Palangka Raya City. The study was carried out on 1.148m2 farmer's paddy fields. The land is divided into three trial plots, each measuring 28x13 m2. Observations were made at the age of 8-15 WAP. Samples were taken using a net trap (Sweep net). Arthropod biodiversity was analyzed using the Shannon-Weaver diversity index (H'). The results showed that in the semi-organic rice ecosystem were obtained 10 orders, 58 families with a total of 8973 individuals, consisting of pests 92.61%, predators 6.59%, parasitoids 0.28%, pollinators 0.06%, Detrivore 0.35%, and 0.07% neutral insects. Diversity index (H') is low to moderate (0.10-2.19), dominance index (C) is in the low to high (0.18-0.97); Evenness index shows that the community is depressed until unstable (0.04-0.67); and The abundance index on the criteria of less to very much (8.96-25.03). The dominant arthropods are dominated by the Rice bug (Leptocorisa acuta).
Pathogenicity of Indigenous Entomopathogen Liquid Formulation to Paddy Bugs Nymphs (Leptocorisa acuta Thunberg) Rahmawati Budi Mulyani; Melhanah Melhanah; Petrayadi Advianto; Adrianson A Djaya
Akta Agrosia Vol 25, No 1 (2022)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.25.1.5-10

Abstract

The purpose of this study was to determine the effectiveness of bio insecticide liquid formulations made from indigenous entomopathogens against paddy bugs nymphs. The study used a non-factorial Complete Randomized Design with 9 treatments and 1 control with five replications. The treatments studied consisted of E0: Control, E1: Beauveria sp Pky isolate + coconut water (CW), E2: Metarhizium sp isolate Jjt + AK, E3: Beauveria sp isolate Jts + CW, E4: Metarhizium sp isolate Lcc + CW, E5: Beauveria sp Pky isolate + shrimp shell extract (SSE), E6: Metarhizium sp isolate Jjt + SSE, E7: Beauveria sp isolate Jts + SSE, E8: Metarhizium sp isolate Lcc + SSE, E9: Synthetic insecticide b a Carbamate (Dharmabas 500 EC 2 ml L-1). The result showed that liquid bioinsecticide formulations were effective against mortality, infected nymphs and nymph death time. All entomopathogenic fungi isolates were able to cause infections in paddy bugs nymphs of 68% - 84%. Beauveria sp Pky isolate and Metarhizium sp isolate Jjt caused nymph mortality of 72% - 84% and the effectivity did not differ from insecticide b.a. Carbamate. Conidia viability of all entomopathogenic isolates in liquid media within 24 hours reached more than 80%. The fastest time to death of paddy bugs nymph occurred at 5.44 days ( Metarhizium sp. isolate) and 5.92 days (Beauveria sp. isolate) in coconut water media. Metarhizium sp. and Beauveria sp. in the medium of coconut water or shrimp shell extract has a very high potential to be developed as a bio insecticide, but it still needs to be further tested for its effectiveness in field conditions.Keywords: indigenous entomopathogen, coconut water, shrimp shell extract, paddy bugs nymph
Co-Authors Adrianson A Djaya Adrianson Agus Djaya Anike Retawati C.C. Aruan Djaya, Adrianson Agus Erina Riak Asie Fatma Sarie Hairani, M Ici Piter Kulu Ici Piter Kulu Lilies Supriati Lilies Supriati Lilies Supriati Lilies Supriati Mario Satrio Melhanah Melhanah Melhanah Mochammad Anwar Mulyati Widayanti Mutmainah Mutmainah Oesin Oemar Pandriyani, Pandriyani Petrayadi Advianto Rahmiati Rahmiati Rahmiati Romiaty Solikah Nurwati Sri Lestari Hendrayati Surawijaya, Panji Susi Kresnatita Tatik Zulaika Ulfah, Sri Mujiarti