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All Journal Jurnal Fitopatologi Indonesia Pelita Perkebunan Jurnal Biosilampari: Jurnal Biologi
Vien Sartika Dewi
Universitas Hasanuddin
Agriculture, Biological Sciences & Forestry Medicine & Pharmacology

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Pengendalian Penyakit Hawar Daun Phytophthora pada Bibit Kakao dengan Trichoderma asperellum Asti Irawanti Azis; Ade Rosmana; Vien Sartika Dewi
Jurnal Fitopatologi Indonesia Vol 9 No 1 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (584.793 KB) | DOI: 10.14692/jfi.9.1.15

Abstract

Phytophthora leaf blight caused by Phytophthora palmivora is one constraint in cacao seedling in Indonesia. Generally, synthetic fungicides were applied to control this disease but its negative impact is becoming obvious recently. Research was conducted to evaluate the effectiveness of two Trichoderma asperellum isolates, ARBT-1 and ART-4, to suppress disease development. The two isolates were applied through seed treatment with spore concentrations of 104 mL-1, 105 mL-1, and 106 mL-1. The results showed that disease incidence on seedling treated with different spore concentrations of ARBT-1 was 39.0%, 23.6%, and 21.8%, respectively and those with ART-4 was 30.6%, 25.7%, and 30.8%, respectively, whereas disease incidence reached 90.3% for control at 21 days after inoculation of the pathogen. Observations on cocoa leaf tissues showed that the two isolates were found in leaf tissue, indicating that T. asperellum is an endophyte.Key words: antagonistic fungi, seedling, seed treatment
KERAGAMAN JENIS LALAT BUAH PADA BEBERAPA TANAMAN BUAH-BUAHAN DI KABUPATEN GOWA SULAWESI SELATAN Yulis Sayang; Vien Sartika Dewi; H. Hamziah
Jurnal Biosilampari : Jurnal Biologi Vol 5 No 1 (2022): Biosilampari
Publisher : LP4MK STKIP PGRI Lubuklinggau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/biosilampari.v5i1.1827

Abstract

The aim of the study was to determine the diversity of fruit fly species (Bactrocera spp.) found in fruit trees in the lowlands Bontomarannu and highlands Tinggimoncong of Gowa Regency, South Sulawesi. The research took place for five months, starting from February to July 2020 which was carried out in two stages. The first stage was to fruit attacked by fruit flies and then put them in a plastic jar filled with sterile fine sand. The jar is covered with gauze and left until a cocoon is formed and an adult insect is born. Adult insects were transferred to petri dishes containing cork and had been smeared with honey as food for fruit flies. The population of adult insects was counted and then identified using a microscope. The second stage is setting traps containing attractant Methyl Eugonol for seven days on fruit plants. Observations were made daily on trapped fruit flies. The attractants in the traps were updated daily for subsequent observations for seven days. Fruit flies were brought to the laboratory for identification using a microscope. The identification results showed that there were five species of fruit flies namely B. papajae, B. carambolae, B. umbrosa, B. occipitalis and B. Cucurbitae.
Microbial Isolation Derived from Pineapple Extract and Its Application on Cocoa Pod Rot Disease, Phytophthora palmivora Sylvia Sjam; Ade Rosmana; Danial Rahim; Vien Sartika Dewi; Untung Surapati
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.196

Abstract

Cocoa pod rot, caused by Phytophthora palmivora,is one of the most important diseases in cocoa farm of Indonesia. Yield losses due to the disease were estimated in the range of 33–99%. Pod rot disease could be controlled using antagonistic fungi, Trichodermasp. and Gliocladiumsp., isolated from pineapple extract. The objective of this study was to evaluate the effectiveness of the two microbes derived from pineapple extract in suppressing the cocoa pod rot disease. The research was conducted at the Plant Pathology Laboratory, Faculty of Agriculture, Hasanuddin University and Cocoa Plantation of Pattalassang II Farmers Group, Pattalassang Village, District of Bantaeng, South Sulawesi from May to September 2012. The results indicated that two species of antagonistic fungi, Trichodermasp. and Gliocladiumsp. were dominant in pineapples extract. The mixture of both of microbes showed the ability to suppress the development of pod rot disease on cocoa plantation. Key worlds: cocoa pod rod, Phytophthora palmivora, Trichoderma sp., Gliocladium sp.
Co-Authors Ade Rosmana Asti Irawanti Azis Danial Rahim H. Hamziah SYLVIA SJAM Untung Surapati Yulis Sayang