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INDONESIA
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Published by Universitas Lampung
ISSN : 14117525     EISSN : 24610399     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Hama dan Penyakit Tropika (JHPT Tropika) publishes articles in plant pests, plant pathogens, plant damage caused by those pests and pathogens and or their management in tropical areas. In addition to basic and applied research papers, JHPT Tropika publishes short communication that have not been published. Before being accepted for publication, all manuscripts must be peer reviewed. The journal is published sixmonthly in March and September.
Arjuna Subject : -
Articles 558 Documents
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Identification of Meloidogyne spp. (Tylenchida: Meloidogynidae) as potato tuber-borne nematodes (PTBN) in the potato production center of Java Island, Indonesia Wawan Kurniawan; Supramana Supramana; Giyanto Giyanto; Abdul Munif
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 2 (2026): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.226473-484

Abstract

Root-knot nematodes (Meloidogyne spp.) are among the most destructive plant-parasitic nematodes affecting potato production worldwide. However, information on Meloidogyne spp. associated with potato tubers and their potential as potato tuber-borne nematodes (PTBN) in Indonesia remains limited. This study aimed to identify Meloidogyne species associated with potato tubers and determine their distribution in major potato-producing regions of Java, Indonesia. Surveys were conducted from January 2023 to December 2024 in West, Central, and East Java. Symptomatic potato tubers were collected and examined using morphological, morphometric, and molecular approaches. Tubers were stored under refrigerated conditions for 3–24 months to evaluate nematode persistence. Molecular identification was performed using species-specific SCAR markers, followed by phylogenetic and sequence homology analyses. Root-knot nematodes were detected in all surveyed production areas and were associated with characteristic symptoms, including knobby, branched, elongated, and russeted tubers. Two species were identified: Meloidogyne incognita, which was widely distributed throughout Java, and Meloidogyne javanica, which was detected only in Cikandang Village, Garut, West Java. The nucleotide sequences were deposited in GenBank under accession numbers LC894939–LC894951 (M. incognita) and LC894966 (M. javanica). Both species remained viable in potato tubers for up to 24 months, confirming their potential as PTBN. These findings provide a scientific basis for strengthening nematode-free seed certification and phytosanitary measures to reduce the spread of Meloidogyne spp. through seed tubers.
First report of Fusarium incarnatum causing fruit rot of chili pepper in Indonesia Irda Safni; Lisnawita Lisnawita; Khairunnisa Lubis; Wida Akasah; Nur Ain Izzati Mohd Zainudin; Esraria Simbolon; Namira Istiqomah
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 2 (2026): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.226317-326

Abstract

Chili pepper (Capsicum annuum L.) is a widely cultivated horticultural crop with significant potential as an export commodity. Fruit rot of chili pepper was recorded in Lubuk Cuik village, North Sumatra Province, Indonesia. One hundred and fifty symptomatic fruits were randomly collected from four locations using purposive random sampling. Fungal colonies were isolated from infected fruits until pure cultures were obtained. Pure colonies observed for macroscopic examination exhibited abundant, dense white aerial mycelia with a brown–yellowish base. Microscopic observations revealed numerous long and slender macroconidia, 3–5 septate, with a curved shape and tapering ends. Microconidia were rare, pyriform to obovate in shape, and mostly 0–1 septate. Chlamydospores were thick-walled, intercalary, globose, and produced singly or in chains. Molecular identification was performed using the internal transcribed spacer (ITS) and translation elongation factor (TEF-1α) regions. The pathogenicity of the eight Fusarium incarnatum isolates was tested twice. The morphological characteristics, phylogenetic analysis, and pathogenicity assay confirmed that all isolates were consistent with Fusarium incarnatum. This study represents the first confirmed report of F. incarnatum causing fruit rot of chili pepper in Indonesia.
Overview of infestation status and management of the rice leaffolder, Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), in Malaysian paddy areas Nor Aida Shafina Mustapar; Nur Athiqah Md Yusof; Salmah Mohamed; Marina Roseli
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 2 (2026): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.226363-378

Abstract

The rice leaffolder, Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), is a major foliar pest of rice (Oryza sativa L.) across Asia, including Malaysia, where recent outbreaks have re-established it as a significant constraint to rice productivity. This review synthesizes current knowledge on its biology, life cycle, feeding behavior, and ecological interactions within Malaysian rice agroecosystems. Available evidence indicates that pest outbreaks are closely associated with environmental factors, particularly high humidity and dense crop canopies, while natural enemies—including parasitoids and predators—play a critical role in regulating field populations. Habitat management practices, such as the introduction of flowering plants along rice bunds, may enhance natural enemy activity and contribute to the suppression of rice leaffolder populations. In addition, augmentative biological control using Trichogramma spp. represents a promising strategy for early-stage suppression of the pest. Integrating these ecological and biological approaches within an Integrated Pest Management (IPM) framework offers a viable pathway to reduce reliance on chemical inputs while improving system resilience. This review also identifies key research gaps and provides directions for developing locally adapted, sustainable management strategies for C. medinalis in Malaysia.
Metatranscriptomic analysis reveals two new viruses and highly expressed endogenous elements in pepper in Iraq Shurooq Zagier; Osamah Alisawi; Wisam Aljuaifari; Fadhal Al Fadhal
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 2 (2026): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.226463-472

Abstract

Pepper plants exhibiting severe leaf curling and deformation in open fields in Iraq were investigated to characterize their associated virome using metatranscriptomic sequencing. High-throughput sequencing (HTS) revealed the presence of bell pepper alphaendornavirus (BPEV) and pepper cryptic virus 2 (PCV-2), together with fragmented sequences related to tobacco vein clearing virus (TVCV). A nearly complete genome of the Iraqi BPEV isolate (14,700 bp) and both genomic segments of PCV-2 (1,623 bp and 1,513 bp) were assembled and deposited in GenBank. Phylogenetic analysis showed that the BPEV isolate clustered closely with isolates from South Korea, Jamaica, and the Dominican Republic, whereas both PCV-2 genomic segments were most closely related to Turkish isolates, indicating high genetic conservation among geographically distant populations. In addition, transcriptome mapping revealed abundant expression of ten endogenous pararetroviral elements integrated within the pepper genome, with most transcripts corresponding to reverse transcriptase (RT-LTR) and RNase H domains. This study represents the first comprehensive metatranscriptomic characterization of the pepper virome in Iraq, documenting the first detection of BPEV and PCV-2 in the country while revealing extensive expression of endogenous viral elements. These findings expand current knowledge of pepper-associated viruses in the Middle East and demonstrate the value of metatranscriptomic sequencing for detecting both exogenous viruses and endogenous viral components.
Molecular detection and characterization of potato virus Y-NTN and cucumber mosaic virus-S in microtubers and G0 tubers of red and Granola potato Diky Setya Diningrat; Laela Sari; Ashar Hasairin; Adelia Febriyossa; Heppy Setya Prima; Selvia Dewi Pohan; Larasati Arum Utami
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 2 (2026): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.226379-389

Abstract

This study aimed to detect and molecularly characterize viruses infecting microtubers and G0 tubers of red and Granola potato varieties produced by PT. G10 Agrotechnology, Medan, Indonesia. A total of 50 microtubers and 50 G0 tubers from each variety were collected and tested using serological methods, including enzyme-linked immunosorbent assay (ELISA) and dot immunobinding assay (DIBA), followed by reverse transcription polymerase chain reaction (RT-PCR) and nucleotide sequence analysis. Serological and molecular assays showed that all microtuber samples were free from potato virus Y (PVY), potato virus X (PVX), potato virus S (PVS), and cucumber mosaic virus (CMV). In contrast, G0 tubers were infected by PVY and CMV, whereas PVX and PVS were not detected. The incidence of PVY and CMV reached 80.0% and 82.0%, respectively, in red potato G0 tubers and 28.0% for both viruses in Granola G0 tubers. RT-PCR successfully amplified the coat protein (CP) genes of PVY and CMV, producing fragments of approximately 801 bp and 657 bp, respectively. Sequence and phylogenetic analyses identified the PVY isolates as belonging to the PVY-NTN strain and the CMV isolates as closely related to the CMV soybean stunt strain (CMV-S). These findings indicate that microtubers produced through tissue culture were virus-free, whereas viral infection occurred during the screen-house multiplication stage. The results provide important baseline information for virus monitoring and management strategies to support the production of high-quality potato seed in Indonesia.
Efficacy of bio-rational insecticides against major rice pests under field conditions in South Sulawesi, Indonesia Jumardi; Desriani; Muh Sandy; Erwin Erwin; Nurasiah Djaenuddin; Andi Nasruddin
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 2 (2026): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.226485-497

Abstract

The brown planthopper (Nilaparvata lugens), green leafhopper (Nephotettix virescens), and yellow stem borer (Scirpophaga incertulas) are among the most destructive insect pests of rice in Indonesia. This study evaluated the field performance of four biorational insecticides (abamectin, azadirachtin, Beauveria bassiana, and Metarhizium anisopliae) and two synthetic insecticides (carbofuran and demihipo) in a rice field in Belawa, Wajo Regency, South Sulawesi, Indonesia. The experiment was arranged in a split-plot randomized complete block design. All biorational insecticides significantly reduced pest populations compared with the untreated control. Abamectin provided the greatest suppression of N. lugens (84.1%), whereas abamectin, carbofuran, and demihipo were the most effective treatments against N. virescens, reducing populations by 71.8%, 69.2%, and 82.4%, respectively. Against S. incertulas, azadirachtin and abamectin achieved the highest reduction in dead-heart incidence (91.9% and 85.7%, respectively). Predator populations, particularly Coccinella spp., were largely conserved in plots treated with azadirachtin, B. bassiana, and M. anisopliae, indicating good compatibility with beneficial arthropods. Weekly applications provided pest suppression comparable to twice-weekly applications, suggesting that insecticide inputs can be reduced without compromising efficacy. Overall, the findings demonstrate that biorational insecticides can be effectively integrated into rice IPM programs to suppress major pests, conserve beneficial arthropods, and reduce reliance on conventional synthetic insecticides, thereby supporting more sustainable rice production.
Pheromone-based monitoring and population dynamics of Spodoptera frungiperda: implications for maize IPM in Lampung Province, Indonesia Puji Lestari; Mega Kartika Hermawan; Nur Rakhman Syaiful Akhdar; Fatnuri Fatnuri; Lestari Wibowo; Selvi Helina; Yuyun Fitriana; I Gede Swibawa; Radix Suharjo; Purnomo Purnomo; Solikhin Solikhin; Hamim Sudarsono; F.X. Susilo; Agus M. Hariri; Made Wiradika
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 1 (2026): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.126237-246

Abstract

Spodoptera frugiperda is a major pest of maize, capable of causing damage throughout all crop growth stages. This study evaluated the use of sex pheromone traps to monitor adult male populations of S. frugiperda, characterize population dynamics during maize growth, and determine optimal trap density under field conditions. A trap density experiment was conducted using four pheromone trap densities (10, 20, 30, and 40 trap/ha⁻¹), each replicated five times. Adult moth captures were recorded at 7-day intervals from trap installation until harvest. In a separate assessment, the intensity of leaf and ear damage was compared between maize plots equipped with pheromone traps and conventional plots without pheromone deployment. Adult capture data revealed clear population fluctuations, with peak abundance occurring during the early vegetative stage of maize, followed by a gradual decline toward harvest. Increasing trap density significantly increased the number of male moths captured, indicating a density-dependent response to pheromone deployment. Maize plots with pheromone traps consistently exhibited lower leaf and ear damage than conventional plots, demonstrating a strong association between reduced adult populations and decreased crop injury. These results indicate that pheromone traps are effective tools for monitoring S. frugiperda populations and for identifying critical intervention periods within an integrated pest management (IPM) framework. While primarily serving as monitoring devices, higher trap densities also showed potential to reduce mating success when deployed over sufficiently large areas. The species-specific nature of pheromone traps further supports environmentally sustainable pest management by minimizing non-target effects.
Biological control of maize sheath blight caused by Rhizoctonia solani using rhizosphere fungi isolated from wild Solanum lasiocarpum Dunal: an in vitro study Rahmawati Budi Mulyani; Yanetri Asi Nion; Adrianson Agus Djaya; Kambang Vetrani Asie; Rangga Rangga; Putri Lestari
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 26 No. 2 (2026): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.226513-527

Abstract

Maize sheath blight caused by Rhizoctonia solani is a major constraint to maize production, particularly in tropical peatland ecosystems where environmental conditions favor pathogen development. This study evaluated the antagonistic potential of rhizosphere fungi isolated from the indigenous plant Solanum lasiocarpum Dunal (Terung Asam) against R. solani under in vitro conditions. Rhizosphere fungi were isolated and identified using morphological characteristics and ITS rDNA sequencing, while their antagonistic activity and volatile organic compound (VOC)-mediated inhibition were assessed using dual culture and sealed plate assays. Six fungal isolates were successfully recovered from the rhizosphere of S. lasiocarpum and identified as belonging to the genera Trichoderma (TA-1–TA-3) and Aspergillus (TA-4–TA-6). Among them, Trichoderma isolate TA-1 (82.8%) and Aspergillus isolate TA-4 (81.4%) exhibited the highest inhibition of R. solani, indicating strong antagonistic activity through competition, mycoparasitism, and antibiosis. In the VOC assay, Aspergillus isolates TA-4 and TA-5 showed the strongest inhibition of pathogen growth, suggesting the production of antifungal volatile metabolites. Molecular identification based on ITS sequencing and BLAST analysis confirmed that isolate TA-1 was Trichoderma asperellum (576 bp) and isolate TA-4 was Aspergillus welwitschiae (574 bp), both sharing 100% sequence similarity with reference sequences in GenBank. To our knowledge, this is the first report describing antagonistic fungi isolated from the rhizosphere of wild S. lasiocarpum as potential biological control agents against maize sheath blight caused by R. solani. These indigenous fungi represent promising candidates for the development of environmentally sustainable disease management strategies in tropical peatland agriculture.

Page 56 of 56 | Total Record : 558

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