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Dewi Fitriyanti, Dewi
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Social Sciences

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Uji Efektivitas Daun Sirih Dalam Menghambat Pertumbuhan Layu Bakteri Ralstonia solanacearum Pada Tanaman Terung: Effectiveness of Betel Leaves in Inhibiting the Growth of Bacterial Wilt Ralstonia solanacearum on eggplant plants Sintalydiawati, Andi; Fitriyanti, Dewi; Liestiany, Elly
JURNAL PROTEKSI TANAMAN TROPIKA Vol. 7 No. 1 (2024): 7(1): Februari 2024
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v7i1.2399

Abstract

Ralstonia solanacearum is one of the important diseases in eggplant plants which causes bacterial wilt in plants so control efforts need to be taken. One alternative control method is using vegetable pesticides from betel leaf powder. This research aims to determine the effectiveness of betel leaves in inhibiting the growth of R. solanacearum bacterial wilt on eggplant plants. This research used a Completely Randomized Design (CRD) with 5 treatments and 5 replications, each replication using 4 plants so there were 100 experimental units. The treatment used doses of 25 gr, 50 gr, 75 gr, 100 gr of betel leaf powder, and as a comparison, namely the control treatment in this study. Observations were made every day after inoculation to see the incubation period that occurred in the eggplant plants and once a week to observe the disease intensity and severity of the disease in the eggplant plants. The results of this study showed that an effective treatment with a dose of 100 g of betel leaf powder with an eggplant plant age of 47 days after showed the lowest treatment in suppressing Ralstonia solanacearum bacteria, namely a disease intensity percentage of 15% with a disease severity percentage of 20% and had the lowest incubation period. slow, namely 19 days, this shows that betel leaves have an effect in suppressing disease attacks caused by R. solanacearum on eggplant plants because they have antibacterial active compounds.
Effect of Rice Storage Packaging with Basil Leaf Powder (Ocimum sanctum L.) Against Rice Weevil (Sitophilus oryzae L.) Attacks Aisyah, Siti; Fitriyanti, Dewi; Rosa, Helda Orbani
JURNAL PROTEKSI TANAMAN TROPIKA Vol. 7 No. 2 (2024): Vol 7(2): Juni 2024
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v7i2.2609

Abstract

South Kalimantan BPS data (2022) shows that there has been a decline in rice production of 79.28 thousand tons (11.65%) so it is necessary to have rice suppliers from outside South Kalimantan to meet the rice demand target. Sitophilus oryzae is the main pest during the shelf life of rice. Controlling rice aphids can be done in various ways, including using appropriate storage media and applying vegetable pesticides to plants that are believed to be able to control them, one of which is basil. This research uses the factorial RAL method with 2 factors, namely packaging (W) and dose (D). The doses given are 0g, 10g, 14g, 18g. The packaging used is in the form of plastic containers and plastic sacks. Obtained 8 combinations, each repeated 3 times. So a total of 24 experimental units. The results of statistical analysis show that the combination of 18g of basil leaf powder in plastic packaging is the best treatment in suppressing the S. oryzae population with a mortality rate of 60%. During 30 days of observation, no new population growth was found and showed the lowest level of rice damage of 1.0% compared to other treatments.
Resistance Test of Themba Oil Palm Variety against Several Leaf Spot Pathogens Budi, Ismed Setya; Mariana, Mariana; Fitriyanti, Dewi; Tuti, Harlina Kusuma; Mariah, Yanti; Suyanti, Aprilia Putri
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4b.11045

Abstract

Leaf spot disease is a major constraint during the oil palm nursery stage, reducing seedling quality and affecting long-term productivity. This study evaluated the resistance of the Themba oil palm variety against three leaf spot pathogens: Curvularia spp., Fusarium spp., and Nigrospora spp., based on incubation period, disease intensity, and plant resistance. The research was conducted from June to November 2025 at the Phytopathology Laboratory and greenhouse of the Plant Protection Study Program, Faculty of Agriculture, Lambung Mangkurat University. Pathogens were inoculated on seedlings selected purposively for uniform age and condition, with four replicates per treatment. The incubation period was monitored daily, and disease intensity was scored periodically. Data were analyzed descriptively using mean values to compare plant responses. Results showed all pathogens caused leaf spot symptoms, but with different progression rates. Curvularia spp. was the most aggressive, while Nigrospora spp. developed more slowly with lower severity. Overall, Themba seedlings exhibited moderate resistance to the tested pathogens, indicating their potential in managing leaf spot disease during the nursery stage, especially when supported by optimal environmental management. These findings provide valuable insights for selecting resistant varieties and implementing integrated disease management strategies in oil palm cultivation.
Co-Authors Emilya, Riska Harlina Kusuma Tuti Helda Orbani Rosa Ismed Setya Budi Janah, Norhuda Ariatul Laodja, Zahra Fauziyyah Liestiany, Elly Magfirah, Asmaul Mariah, Yanti Mariana Mariana Marsuni, Yusriadi Muhammad Indar Pramudi Muhammad Redho NOOR AIDAWATI Nur Halimah Pratama, Septian Aji Rizani, Ridwan Saipul Abbas Salamiah . Sintalydiawati, Andi Siti Aisyah Suyanti, Aprilia Putri Tarigan, Divayona Begidir Br Tarigan Yanti, Dewi Dhea Yuliana, Maria