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Helen J Lawalata
Jurusan Biologi, Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian, Universitas Negeri Manado
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Public Health Veterinary

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IDENTIFICATION OF THE TYPE OF FERNS IN THE FOREST AREA OF NOONGAN VILLAGE YOSUA LINU; Helen J Lawalata; Rievo Djarang
Indonesian Biodiversity Journal Vol. 4 No. 1 (2023): April 2023
Publisher : Universitas Negeri Manado

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Abstract

Ferns (Pteridophyta) are spore-forming cormophytes that can live in a variety of habitats both as epiphytes, terrestrial and aquatic. In the forest area of Noongan Village, many potentials play an important role in developing forest ecosystems. One such potential is ferns. The results of the study were eight types of ferns in the forest area of Noongan village which were divided into two plots of 50x50 meters at different heights, namely plot I at an altitude of 610 masl with a total of 380 ferns with the percentage: Paku Garuda (Pteridium aquilinium) 0.20 %, Elephant fern (Angiopetris avecta Hoofm) 0.01%, Red rane fern (Selaginella australis) 0.01%, Paku Kikir (Stenosomia Sp.) 0.14%, Ferret fern (Nephrolepis biserrataSchott.) 0, 21%, cecerenean fern (Nephrolepis falcata) 0.16%, suplir fern (Adiantum.) 0.12%, andam fern (Dicranopetris linearis) 0.12%. And plot II at an altitude of 869 meters above sea level with a total of 179 ferns with a percentage of: Garuda fern (Pteridium aquilinium) 0.21%, elephant fern (Angiopetris avectaHoofm) 0.01%, miserly fern (Stenosomia Sp.) 0, 17%, Paku harupat (Nephrolepis biserrate Schott.) 0.21%, Paku cecerenean (Nephrolepis falcata) 0.15%, Suplir (Adiantum.) 0.10%, Paku andam (Dicranopetris linearis) 0.12%. In the plot I, the types and number of ferns were higher than the types and numbers of ferns in plot II. No red fern (Selaginella australis) was found in plot II. And the plant species Paku Harupat (Nephrolepis biserrata Schott). The red fern has the highest number, and the red fern (Selaginella australis.) has the least amount. The difference in altitude greatly affects the surrounding environment. So that these differences greatly affect the number of types and numbers of ferns
Beauveria bassiana FUNGUS AS A BIOLOGICAL ALTERNATIVE FOR THE CONTROL OF Bactrocera carambolae ON CHILI PLANTS Helma Fitriani; Jantje Ngangi; Helen J Lawalata
Indonesian Biodiversity Journal Vol. 4 No. 1 (2023): April 2023
Publisher : Universitas Negeri Manado

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Abstract

Chili plants are an important horticultural crop for the Indonesian population. Still, in the context of pest control, the use of insecticides to manage the OPT is proving to be increasingly problematic for the environment and human health as a result of their ability to decimate microscopic organisms present in the soil so that as decomposers or decomposer microorganisms and earthworms perish, the soil would ultimately become more barren. Therefore, it needs to be overcome by finding other alternatives that are more environmentally friendly and reduce the negative impact of pesticides. This study aimed to determine an environmentally friendly alternative biological control using the Beauveria bassiana fungus. This study used an experimental method with five treatments and three replicates, notably spore concentration using B. bassiana 6g, 7g, 8g, 9g, and control. The use of this fungus is simple and does not incur significant costs. From the results of data collection, the Beauveria bassiana fungus is effective in killing carambolae with a fast mortality rate at a concentration of 9 g/500 ml of water (86.7%), and the slowest concentration is at 6 g/500 ml of water (63.4%).
Beauveria bassiana FUNGUS AS A BIOLOGICAL ALTERNATIVE FOR THE CONTROL OF Bactrocera carambolae ON CHILI PLANTS Helma Fitriani; Jantje Ngangi; Helen J Lawalata
Indonesian Biodiversity Journal Vol. 4 No. 1 (2023): April 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i1.5866

Abstract

Chili plants are an important horticultural crop for the Indonesian population. Still, in the context of pest control, the use of insecticides to manage the OPT is proving to be increasingly problematic for the environment and human health as a result of their ability to decimate microscopic organisms present in the soil so that as decomposers or decomposer microorganisms and earthworms perish, the soil would ultimately become more barren. Therefore, it needs to be overcome by finding other alternatives that are more environmentally friendly and reduce the negative impact of pesticides. This study aimed to determine an environmentally friendly alternative biological control using the Beauveria bassiana fungus. This study used an experimental method with five treatments and three replicates, notably spore concentration using B. bassiana 6g, 7g, 8g, 9g, and control. The use of this fungus is simple and does not incur significant costs. From the results of data collection, the Beauveria bassiana fungus is effective in killing carambolae with a fast mortality rate at a concentration of 9 g/500 ml of water (86.7%), and the slowest concentration is at 6 g/500 ml of water (63.4%).
Co-Authors Helma Fitriani Jantje Ngangi Rievo Djarang YOSUA LINU