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Journal of Tropical Plant Protection
Published by Universitas Brawijaya
ISSN : -     EISSN : 23557974     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
We cordially invite you to submit a manuscript to Journal of Tropical Plant Protection (JTPP), an upcoming regular peer-reviewed open access on-line scientific journal that covers fundamental and applied aspects of plant pathology and entomology in agriculture and natural resources. The journal will consider submissions from all over the world, on research works not being published or submitted for publication as full paper, review article and research note elsewhere.
Arjuna Subject : -
Articles 61 Documents
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Endophytic Fungi as Potential Agents of Helminthosporium sp.  in Rice Plant (Oryza sativa L.) Ratna Eka Sari Putri; Syamsudin Djauhari; Mintarto Martosudiro
Journal of Tropical Plant Protection Vol 2, No 2 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2021.002.2.3

Abstract

Brown spot disease is the most serious rice disease due to its destructive nature, wide distribution and presence of several physiological races of the organism. In Asia, the disease has been recorded to reduce crop yields vary broadly from 6-90%. The application of endophytic fungi is reported to increase plant resistance from the secondary metabolites produced. The resulting metabolites are synthesized compounds to maintain their existence in interacting with the environment. The aim of this study was to obtain endophytic fungi of rice plants that were able to suppres Helminthosporium sp. pathogens. Isolation of endophytic fungi was carried out from the roots, peniles, leaves and leaf sheath of rice plants. Identification of endophytic fungi was based on their macroscopic, microscopic characters and molecular identification. Endophytic fungi that had the highest inhibition were T. asperellum, F. nirenbergiae, and F. oxysporum as indicated by the in vitro antagonism test. T. asperellum, F. nirenbergiae, and F. oxysporum also produced IAA hormone between 1.8 to 4.365 mg/L.
Abundance of Collembola on Integrated Pest Management and Conventional Sugarcane Fields Putra, Satrya Adhimas Eka; Rahardjo, Bambang Tri
Journal of Tropical Plant Protection Vol. 3 No. 1 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.1.2

Abstract

This research aimed to determine effect of applying sugarcane litter on the abundance of Collembola species in sugarcane fields using the IPM and conventional systems. This research was conducted from August to January 2021 in sugarcane plantation at sweetener and fiber crop research center (BALITTAS), Karangploso, Malang. Data were analyzed using the formula of diversity index, evenness and dominance and further analyzed with the T test. The results showed there were 5 families of Collembola found in IPM field namely Brachystomellidae, Neanuridae, Sminthuridae, Isotomidae and Entomobrydae. On conventional field, there was no family Neanuridae. Application of litter and intercropping on IPM field increased population of Collembola, while in conventional field, the Collembola population was lower. Application of sugarcane litter increased the levels of organic matter and population Collembola in IPM sugarcane field
Effectiveness of Mancozeb and Benalaxyl Against Purple Blotch Disease Caused by Alternaria porri Howard (Dothideomycetes: Pleosporaceae) In Shallot (Allium ascalonicum L.) Liana Juvita; Anton Muhibuddin
Journal of Tropical Plant Protection Vol. 3 No. 1 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.1.5

Abstract

The common control of purple blotch disease of shallot cause by Alternaria porri is using fungicide. Application of mancozeb and benalaxyl was reported effectively suppress the intensity of purple blotch disease. The aim of this study was to evaluate the effective doses of mancozeb and benalaxyl fungicide against purple blotch disease of shallot in vivo and in vitro. A Randomize Block Design (RBD) with 5 treatments and 5 replicates were used in in vivo experiments and A Randomize Complete Design (RCD) with 6 treatments and 3 replicates were used in in vitro experiments. Disease intensity, fungicide efficacy rate (ER), and production were evaluated in vivo experiment. The growth of A. porri colony, fungicide relative inhibitions rate, compounds fungicide activity character, the biomass of mycelium on potato dextrose agar (PDA) and potato dextrose broth (PDB) were evaluated during in vitro experiment. The result showed that the highest of mixtured fungicide efficacy (90.15%) was found on the highest treatments (2.0 g/l) of fungicides application. It was also found that all fungicides suppressed growth of colony and biomass of A. porri mycelium on PDA+PDB media. The lowest growth of colony, biomass of  A. porri mycelium was found on PDA+PDB media and the highest relative inhibition rate was showed on mixtured of mancozeb+benalaxyl treatment. The fungicide activity character which evaluated from co-toxicity value, indicated that there was a sinergistic between mancozeb and benalaxyl (NK ≥ 1) to inhibit growth of A. porri.
Evaluation of Five Shallot (Allium Cepa L.) Varieties For Resistance to Shallot Yellow Stripe Virus (SYSV) Zulverdi, Yudhika Ankenkuala Ramadhana; Martosudiro, Mintarto; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 3 No. 1 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.1.3

Abstract

Shallot Yellow Stripe Virus (SYSV) is one of the economically important viruses of shallot. The incidence of SYSV infection can reach 66%-100%. The high level of SYSV infection on shallot is also due to the lack of resistance varieties to SYSV. This study aimed to determine the resistance of five varieties of shallot and the effect of SYSV infection on shallot production. The study used a completely randomized experimental design (CRD) using five shallot varieties as the treatment with four replication for each treatment. The shallot varieties were Bauji, Thailand, Bima Brebes, Tuk tuk (V4), Trisula (V5), and control. Each experimental unit consisted of 10 plants. The evaluation results showed that the Tuk-tuk variety was categorized as resistant, the Trisula variety as tolerant, and the Bauji, Thailand, and Bima Brebes varieties were categorized as susceptible. The shallot growth and production indicate that SYSV infection causes interference in the plant development process.
Utilization of Rhizosphere Antagonistic Microorganisms to Suppress The Damping Off Disease Caused by Sclerotium rolfsii Sacc. on Soybean Ika Agustin Rusdiana; Antok Wahyu Sektiono; Ika Rochdjatun Sastrahidayat
Journal of Tropical Plant Protection Vol. 3 No. 1 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.1.4

Abstract

Damping off on soybean is caused by Sclerotium rolfsii Sacc. It is a disease that can reduce production of soybean because and even lead to crop failure. The aims of this research are to obtain antagonist microorganisms in the rhizosphere of soybean to suppress damping off disease and determine the mechanism and than the effect of antagonist isolates on the incidence damping off disease of in vivo. The results of in vitro research obtained 13 isolates. However, only 5 isolates showed antagonism activity consisting of 4 bacterial isolates with antibiosis mechanism and 1 fungal isolate with mycoparasite mechanism against S. rolfsii. The results of in vivo research indicated that antagonist isolates could suppress damping off disease. The highest percentage of damping off disease incidence was observed in the control (80.71%) and the lowest percentage of the Trichoderma sp. (24.76%).
Fluctuation Patterns Spodoptera frugiperda and Its Natural Enemies on Maize Plants With IPM and Conventional Practice in Malang Regency Prayogo, Bagas Agung; Mudjiono, Gatot; Widjayanti, Tita
Journal of Tropical Plant Protection Vol. 3 No. 2 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.2.2

Abstract

Spodoptera frugiperda (Lepidoptera: Noctuidae) is a pest that originated in the United States and then migrated to Indonesia. This pest reportedly attacked corn in West Pasaman, West Sumatra Province, in 2019. This study aimed to determine the effect of cultivation practice on fluctuations in natural enemies and S. frugiperda. The research was conducted in Pandan Rejo Village, Pagak, Malang Regency. Data from observations of pest populations' natural enemies were then analyzed using simple quantitative analysis. The population and intensity of Spodoptera frugiperda attacks on IPM practices were always lower than those on conventional practices. During observation, there were 2 species of natural enemies, Braconidae and Scelionidae. The parasitoid population in IPM is always higher than in conventional practice. The lower parasitoid population at conventional practice failed to suppress the S. frugiperda population. Farming business analysis calculated using the R/C ratio showed that IPM practice had a value of 1.03 while conventional was only 0.55. IPM practice is feasible and more ecologically friendly than conventional practice.
Arthropods Diversity on Eggplant (Solanum melongena L.) Between Monoculture and Intercropping Farming System Faljila, Fanisa; Rahardjo, Bambang Tri
Journal of Tropical Plant Protection Vol. 3 No. 2 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.2.1

Abstract

This research aims to assess the diversity of arthropods, the abundance of Epilachna sparsa Auctt. and the feasibility of farming on monoculture and intercropping at the Agricultural Technology Assessment Center (BPTP). The research was conducted in BPTP of Riau Islands from January to April 2021. Sampling was carried out directly on fields with a total sample of 26 plants in the absolute method and 12 yellow sticky traps and 12 blue pan traps. The value of the diversity index (H') on the two fields belonged to the medium category. The richness index (R) on monoculture field was classified as being different from intercropping field which was classified as high. The evenness (e') on both fields was high and the dominance (C) showed that there was no arthropod that dominant. The t-test results for the intensity of E. sparsa's attack no significant effect on the two fields. The R/C ratio value on monoculture field was 1,32 and the R/C ratio value on intercropping had obtained a value of 1,85. The selling price on monoculture field was said to be a return on investment if it was sold at a price of Rp 5,285/kg while on the intercropping field was sold at Rp 6,351/kg.
Soil Fungus and Bacteria Antagonism Test to Control Phytophthora nicotianae in The In Vitro Istifada, Valia; Syib’li, Muhammad Akhid; Sektiono, Antok Wahyu; Ratdiana, Ratdiana; Limin, Atfritedy
Journal of Tropical Plant Protection Vol. 3 No. 2 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.2.5

Abstract

This study aims to determine the potential of antagonistic fungi and bacteria as controlling agents for Phytophthora nicotianae. The research was conducted at the Laboratory of Biological Control 1, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya, Malang. The method used is soil sampling, isolation, purification, identification and in vitro antagonism test. The antagonism test is done by the dual culture method. This study used a completely randomized design for eight treatments, including the control and each treatment was repeated four times. In this study, the antagonism test results were obtained between antagonistic fungi and Phytophthora nicotianae, which Penicillium sp. (PEG01) had the highest percentage of inhibition, and the one with the lowest total diameter was Trichoderma sp. (TRC01). Moreover, the antagonism test results were obtained between antagonistic bacteria and Phytophthora nicotianae, which bacteria C had the highest percentage of inhibition and the lowest total diameter.
The Influence of Landscape Composition on The Diversity and Abundance of Beetles in Rice Cultivation Ruwaidah, Nisa; Rizali, Akhmad
Journal of Tropical Plant Protection Vol. 3 No. 2 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.2.3

Abstract

The objectives of this study were to examine the characteristics of the landscape at each research site to examine the diversity, abundance, and composition of beetles; to examine the effect of management practices and habitat conditions, and to examine the relationship between landscape composition and beetle diversity and abundance at 14 research sites. The research was conducted from January 2022 to March 2022 in 14 rice farming locations spread across West Sumatra, Central Java, and East Java. Sampling was done by installing light traps at each location, mapping the landscape condition, and characterizing the landscape by conducting a ground survey at a radius of 500 m from the observation plot by recording various types of land use and then digitizing it with the QGIS application version 3.24.1. This study used analysis of variance and regression analysis. The results showed that plantations, agriculture, forests, and settlements dominated the land use types. The total number of beetles was 12,653, consisting of 10 families and 24 morphospecies. The cultivation method that influences the diversity of beetles is the application of fertilizer, while the landscape composition that affects species diversity is natural habitat and class area plantation.
In Vitro Analysis of Effectiveness Clove Leaf Extract (Syzygium aromaticum) Against Anthracnose Disease (Colletotrichum capsici) on Chili Plants (Capsicum annum L) Mahendra, Syah Maulana; Abadi, Abdul Latief; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 3 No. 2 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.2.4

Abstract

Chili (Capsicum annum L) is a plant with a high economic value and is in great demand by the Indonesian people. This research aimed to determine the effectiveness of the difference in the concentration of clove leaf extract in inhibiting anthracnose disease in chili. This research was conducted from February to April 2022. This research used the Complete Randomized Design (CRD) method with six treatments and four replications. The treatment used in this research was the difference in the concentration of clove leaf extract, namely 0%, 1%, 2%, 3%, 4%, and 5%. The research showed that clove leaf extract could inhibit the growth of C. capsici, which caused anthracnose disease in chili. In vitro tests showed that the concentrations of 3%, 4%, and 5% of clove leaf extract significantly differed from all treatments and had fungicidal properties against C. capsici. In conclusion, the research results showed that the effective concentration in inhibiting the growth of C. capsici, which causes anthracnose disease in chili, is the concentration of clove leaf extract 3%, 4%, and 5%.

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