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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Advances in Tropical Biodiversity and Environmental Sciences
Jantje Ngangi
Manado State University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Physics Veterinary Other

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The Use of Beauveria bassiana as Biological Control against the Pepper Aphid Insect Pest Myzus persicae Sulz Semuel Harpandi; Jantje Ngangi; Helen Joan Lawalata; Sukmarayu Pieter Gedoan; Utari Satiman; Yermia Semuel Mokosuli
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 1 (2025): February 2025: Pages 1-66
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i01.p02

Abstract

This research is motivated by chilies, which are one of the plant products that become raw materials for daily needs and are therefore classified as a secondary food source. Insect pests are a factor affecting chilli productivity, use of fungi as biological controllers, to determine the use of the fungus Beauveria bassiana as a biological control against the insect pest of chilli aphids Myzus persicae Sulz, the research method used in this study is an experimental method using the complete randomized design (CRD) method with five treatments and three replications, where each plot has five samples, the treatment doses were Control, P1 (6 g/500 ml), P2 (7 g/500 ml), P3 (8 g/500 ml), P4 (9 g/500 ml) and Lethal Dose 50, the results of this study showed that the application of B. bassiana had a significant effect on the mortality of M. persicae Sulz with the mortality obtained was 0.75% of the total number of samples 120 outside the control treatment, so the higher the dose, the higher the mortality, the LD50 result was 6.025 g/ml, showing that the toxicity of B. bassiana falls into the category of mild toxins. Therefore, we can conclude that the fungus B. bassiana serves as an effective biological control agent against the insect pest M. persicae Sulz.
Composition and Diversity of Forestry Plant Species in Forest Areas Manado State University, North Sulawesi Fanny Nella Nanlohy; Emma Mauren Moko; Jantje Ngangi; Crescentia M.J Ngangi; Verawati Ida Yani Roring
Jurnal Penelitian Pendidikan IPA Vol 10 No 1 (2024): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i1.4794

Abstract

Indonesia is an archipelagic country with a tropical climate so it has a large forest area. High rainfall and sufficient solar irradiation make the diversity of living things both flora and fauna very high. This study aims to identify and determine the level of diversity of forestry plants in the forest area of Manado State University, North Sulawesi. This research will be carried out in April - May 2023 in the forest area of Manado State University, North Sulawesi. Sampling in this study was carried out using the Purposive Sampling (Judgmental Sampling) technique with 9 plots in 3 observation stations. The results of the study found that in all sampling plots, there were 17 individuals of forestry plants with 9 species. The highest Important Value Index (IVI) belongs to the species Petrocarpus indicus with an IVI of 61%. The Shannon Winner diversity index H = 2.07 was found to be in the medium category.
Co-Authors Crescentia M.J Ngangi Emma Mauren Moko Fanny Nella Nanlohy Helen Joan Lawalata Mokosuli Yermia Samuel Semuel Harpandi Sukmarayu Pieter Gedoan Utari Satiman Verawati Ida Yani Roring