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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 531 Documents
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Distribution areas of quarantine plant pest organisms of the fruit fly Bactrocera musae (Diptera: Tephritidae) in South Sulawesi, Indonesia Junaidi, Junaidi; Gassa, Ahdin; Ramli, Ramli; Patandjengi, Baharuddin
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.12668-77

Abstract

Bactrocera musae is one of the most damaging fruit fly species affecting tropical fruit crops, particularly bananas. In Indonesia, this species is classified as an A2 Quarantine Plant Pest due to its economic impact and potential to spread into key production and export regions. However, updated information on its spatial distribution in South Sulawesi remains limited. This study aimed to map the occurrence and distribution of B. musae through field surveillance. Fruit fly specimens were collected using traps baited with methyl eugenol and installed across selected survey locations representing fruit-producing areas. Morphological identification was performed using standard taxonomic keys for Bactrocera species. The survey results confirmed that the distribution of B. musae in South Sulawesi is relatively extensive. The pest was detected in Makassar City and the regencies of Gowa, Takalar, Jeneponto, Bulukumba, Bantaeng, Sinjai, and Bone. These areas are characterized by the presence of tropical fruit crops, including banana, mango, guava, and papaya, which may serve as suitable host plants and support population establishment. The confirmed presence of B. musae in multiple regions indicates the need for strengthened surveillance, early detection programs, and quarantine measures. The findings of this research provide important baseline data for future pest risk analysis and policy development, particularly regarding pest status determination and preventive actions in South Sulawesi and other vulnerable regions. Further studies on population ecology, host interactions, and management strategies are recommended to support more effective control efforts.
Antioxidant enzyme activities in chili plants in response to the infection of Pepper yellow leaf curl Indonesia virus Paradisa, Yashanti Berlinda; Hidayat, Sri Hendrasturi; Mutaqin, Kikin Hamzah; Syukur , Muhamad; Wahyuni, Wahyuni; Indrayani, Sri; Sulistyowati, Yuli; Fidriyanto, Rusli
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.12678-89

Abstract

Chili pepper is an important agricultural crop but is highly vulnerable to viral diseases, including Pepper yellow leaf curl Indonesia virus (PepYLCIV). This study investigated the biochemical response of chili plants to PepYLCIV infection by examining changes in antioxidant enzyme activities: peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX). The effects of sample handling methods on enzyme activity measurements were also evaluated. The experiment was conducted in a biosafety greenhouse using a factorial design with four replications. The treatments included two chili varieties (Bara and Bonita), plant condition (healthy and PepYLCIV-infected), sample types (fresh leaf tissue and frozen leaf tissue stored at −80 °C), and seven sampling times (1, 3, 5, 7, 14, 21, and 28 days post-inoculation). Result showed that POD activity was significantly higher in infected plants than in healthy plants, whereas CAT and APX activities showed no significant differences between plant health conditions. Fresh samples consistently exhibited higher enzyme activity than frozen samples. POD and CAT activities peaked at 28 days post-inoculation, while APX activity was the highest at 5 days post-inoculation and fluctuated over time. These findings highlight the importance of considering infection status, sampling time, and sample processing when evaluating antioxidant enzymes in plant–virus interaction studies.
Distribution of Diaphorina citri, a citrus huanglongbing vector in Indonesia and new locality records Setyaningrum, Haris; Martono, Edhi; Mo, Jianhua; Subandiyah, Siti; Joko, Tri; Soffan, Alan
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.126112-135

Abstract

The Asiatic citrus psyllid (Diaphorina citri) is the primary vector of the destructive citrus disease huanglongbing (HLB), posing a significant threat to citrus production in Indonesia. Systematic surveys of D. citri are essential for identifying areas at high risk of HLB outbreaks and for supporting sustainable disease management. This study aimed to assess the population distribution of D. citri in major citrus-producing regions of Indonesia and to evaluate its potential risk for HLB spread. The research was conducted over two consecutive years (2022–2023) across key citrus production areas on the islands of Java, Sumatra, Kalimantan, and Bali. A total of 206 sampling sites were surveyed using direct manual inspection and two types of yellow traps. D. citri was detected at 35 locations, representing new country records. The distribution pattern was relatively uniform in Sumatra but more scattered in Java and Kalimantan, with the highest population densities observed in the lowland areas of Bengkulu. These findings provide critical insights into D. citri distribution patterns and support targeted surveillance and sustainable management strategies to mitigate the impact of HLB in Indonesia.  
Effect of combination of organosulfur and polyphenols organic fungicide on Ganoderma-infected oil palm seedlings Yusup, Ciptadi Achmad; Eris, Deden Dewantara; Mulyatni, Agustin Sri; Pradana, Mahardika Gama; Widiastuti, Happy; Santoso, Djoko
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.126136-146

Abstract

The curative potential of an organic fungicide against Ganoderma boninense was previously assessed in vitro and yielded promising results. This organic fungicide was formulated using a combination of organosulfur compounds and polyphenols (OSC-P) as active ingredients. This study aimed to evaluate the effectiveness of OSC-P application in controlling basal stem rot (BSR) disease in infected oil palm seedlings of different varieties and to determine the optimum application dose. Two oil palm varieties were used: a G. boninense-susceptible variety and a moderately tolerant variety. The seedlings were artificially infected with G. boninense using inoculated rubber wood blocks (RWB). OSC-P was applied to 16-week-old seedlings by soil drenching at a volume of 200 mL per plant at 2-week intervals for 24 weeks. A total of six treatments, including controls, were arranged with four replications and observed at 4-week intervals. Each replication consisted of 10 seedlings. Observed parameters included disease incidence, disease severity, and vegetative growth parameters. The results showed that OSC-P application significantly reduced the incidence and severity of BSR disease in infected oil palm seedlings. BSR symptoms were less severe in the moderately tolerant variety than in the susceptible variety; however, disease incidence did not differ significantly between the two varieties. The optimum application dose of OSC-P was 0.8% (v/v), and variations in application dose did not significantly affect disease incidence or severity at 24 weeks after application. These findings are expected to complement existing preventive strategies for BSR management.
Characterization and bioactivity of nanoemulsions from Leucaena leucocephala and Annona muricata extracts against Spodoptera frugiperda Nuryanti, Ni Siluh Putu; Maulida, Desi; Ardiansyah, Sigit; Pratiwi, Nurma; Dulbari, Dulbari
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.12690-100

Abstract

Spodoptera frugiperda is a major pest that attacks food and horticultural crops. The development of botanical pesticides in nanoemulsion form is one strategy to manage this pest. This research aimed to analyse the properties and effectiveness of nanoemulsions formulated using phase inversion and homogenization methods from Leucaena leucocephala and Annona muricata seed extracts against S. frugiperda. The research methods included mass rearing of S. frugiperda, extraction of L. leucocephala and A. muricata seeds, nanoemulsion formulation, and characterization of nanoemulsion properties. The results showed that the phase inversion method produced larger particle sizes compared to the homogenization method. Similarly, the phase inversion method resulted in a wider particle size distribution, while homogenization produced more uniform droplets. The nanoemulsion of the mixed extract of L. leucocephala and A. muricata seeds formulated using the homogenization method provided an antifeedant effect of 56.15% (medium inhibition criteria). The lowest antifeedant activity was observed in nanoemulsion from L. leucocephala using the phase inversion method (36.87%, low inhibition criteria). The highest ovicidal effect (72.93%) was also obtained from the mixed-seed nanoemulsion prepared by homogenization.
The effect of Cerbera odollam leaf and fruit peel extract on subterranean termite Coptotermes curvignathus Mujahidah, Ummahatul; Ilmiawati, Auliya; Arinana, Arinana; Syahbirin, Gustini; Batubara, Irmanida
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.126100-111

Abstract

Coptotermes curvignathus is a termite pest that attacks buildings, plantations, and forests. Controlling this pest requires environmentally friendly natural materials. The bintaro plant (Cerbera odollam) are known in Indonesia as natural insecticides and traditional medicines because of their strong toxic properties, so they have the potential to be used in termite control. This study evaluated the efficacy of C. odollam leaf and fruit peel extracts as natural termiticides and their effectiveness against subterranean termite C. curvignathus. The extraction process used three solvents with different polarities: n-hexane, acetone, and ethanol. Anti-termite bioactivity tests were conducted following the Japanese Industrial Standard (JIS) 1571-2010 method. Ethanol extract from C. odollam leaves produced the highest yield (9.52%). Phytochemical analysis showed the presence of alkaloids, flavonoids, phenolics, steroids, and saponins in both leaf and fruit peel extracts. The anti-termite bioactivity test showed that the leaf extract with acetone solvent caused 97.33% mortality, while the fruit peel extract with ethanol solvent caused 100% mortality at a 5% concentration. This study demonstrates that C. odollam leaf and fruit peel extracts have strong potential as natural termiticides.
Oviposition preference of Zeugodacus cucurbitae (Diptera: Tephritidae) on melon manis terengganu, Cucumis melo var. inodorus Saidi, Nur Syahida Wajdah; Mohamed, Salmah; Azeli, Nor Aminah Azizol; Yusof, Nur Athiqah Md; Ngah, Norhayati; Adam, Nur Azura
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.126147-158

Abstract

Understanding the ovipositional preferences of insect pests is essential for developing effective management strategies in agricultural systems. Zeugodacus cucurbitae (Coquillett) is a highly destructive tephritid fruit fly that infests fruits at various maturity stages, causing significant damage to economically important crops such as Melon Manis Terengganu (MMT). This study investigated the ovipositional preference of Z. cucurbitae across three fruit maturity stages—unripe, ripe, and fully ripe—under no-choice and choice experimental conditions. In the no-choice experiment, pupal formation (7.44 ± 2.10 pupae) and adult emergence (6.20 ± 2.03 flies) were significantly lower (P < 0.05) in unripe MMT, whereas the percentage of adult emergence and sex ratio did not differ significantly (P > 0.05) among fruit maturity stages. Under choice conditions, pupal formation was also significantly lower (P < 0.05) in unripe MMT (11.40 ± 4.68 pupae), while fully ripe fruits supported significantly higher (P < 0.05) male (51.70 ± 21.07%) and female (55.00 ± 26.59%) emergence. Correlation analysis revealed significant relationships (P < 0.05) between pupal formation, adult emergence, and fruit characteristics in the choice experiment. These findings demonstrate a strong preference of Z. cucurbitae for fully ripe MMT as oviposition sites, indicating that fruit maturity plays a critical role in host selection. This study provides valuable insights for the development of targeted pest management strategies, including early-stage fruit protection, to reduce infestation in MMT cultivation.
Effect of Papaya ringspot virus watermelon strain on growth, yield and quality of melon Selangga, Dewa Gede Wiryangga; Temaja, I Gede Rai Maya; Wirya, Gusti Ngurah Alit Susanta; Sudiarta, I Putu; Listihani, Listihani; Hanifah, Wafa’ Nur; Maulinda, Restiana
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.126180-189

Abstract

Papaya ringspot virus watermelon strain (PRSV-W) is a member of the genus Potyvirus that infects Cucurbitaceae crops. The first occurrence of PRSV-W in Indonesia was reported in Bali in 2022. However, information regarding yield loss caused by PRSV-W infection in melon has not yet been reported. This study aimed to analyze yield loss and changes in fruit quality of melon resulting from PRSV-W infection. The research methods included individual and population level disease observations, assessment of agronomic variables and disease severity, yield loss estimation, and data analysis. Observations were conducted at the Pegok Experimental Farm, Faculty of Agriculture, Udayana University, covering an area of 1000 m². The observed plant ages ranged from 6 to 66 days after planting (dap). Mosaic disease development was observed from 18 dap until before harvest. The highest disease incidence and disease severity recorded at the end of the observation period were 58.4% and 61.8%, respectively. Actual yield loss, calculated by comparing mosaic symptomatic and asymptomatic melon plants, reached 49.45%. The most prominent quality defects were changes in fruit color and shape and fruit malformation, with values of 14.06% and 17.5%, respectively. The greatest economic loss occurred in plots with an AUDPC value of 751, resulting in a total yield loss of IDR 15,721,500. Yield loss showed strong correlations with disease incidence and disease severity, with correlation values of 95.41% and 96.19%, respectively. PRSV-W infection altered fruit skin color from yellow-orange to pale yellow with ringspot symptoms, and PRSV-W was detected in the skin tissues of infected fruits. In addition, PRSV-W infection reduced fruit sweetness to 9–12 °Brix, whereas healthy fruits exhibited sweetness levels of 14–17 °Brix.
Biosynthesis and applications of nanobas for increasing bacterial leaf blight resistance in shallot Kurniawan, Dhadhang Wahyu; Prihatiningsih, Nur; Wulansari, Nur Kholida
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.126200-207

Abstract

Nanobas is a nanosuspension derived from Bacillus sp. isolated from the rhizosphere of shallots, formulated as a biopesticide to mitigate the predominant diseases afflicting shallots. A significant pathogen of shallots is the bacterial leaf blight caused by Xanthomonas axonopodis, which can result in yield losses of up to 80%. This research aims to: 1) develop and characterize Nanobas as a nanosuspension formula, and 2) assess the efficacy of Nanobas in enhancing the resistance of shallots to bacterial leaf blight. The experimental methodology employed a completely randomized block design in field conditions. The study comprised five treatments: P0: control, P1: Nanosuspension Bacillus sp. Bm2-chitosan 10 mL/L, P2: Bacillus sp. Bm2 liquid formula 10 mL/L, P3: Chitosan 0.01%, P4: bactericide (copper hydroxide) 2 mL/L, with each treatment replicated five times. The treatments were applied by drenching 50 mL around the plant base. The variables observed included the visual characteristics of Nanobas, incubation period, disease intensity, effectiveness, and the structural and biochemical resistance of shallots. The findings revealed that Nanobas, as a Bacillus sp. Bm2-chitosan nanosuspension, exhibited colloidal stability, characterized by its ability to scatter light without sedimentation. The application of Nanobas resulted in a 30.28% reduction in disease intensity. Structural resistance was evidenced by the increased epidermal thickness in the cell walls of shallot leaves. The highest phenolic compound content was observed in the Bacillus sp. Bm2 liquid formula treatment, indicating that while the nanosuspension formula is efficacious as a biocontrol agent, it is less effective as a bioenhancer.
Deciphering the signature of seedborne fungi linked to rice sheath rot disease: insights from ITS rDNA sequencing analysis Hoerussalam, Hoerussalam; Afifuddin, Ahmad; Lathif, Yudrik; Widiastuti, Ani; Putra, Eka Tarwaca Susila; Priyatmojo, Achmadi
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.126165-179

Abstract

Sarocladium oryzae and Fusarium spp. are the causal agents of sheath rot, a re-emerging rice disease that has recently gained importance in Indonesia and can cause yield losses of up to 85%. Both pathogens are seedborne, making their accurate identification and management essential. Conventional morphological identification is time-consuming and often inaccurate due to overlapping symptoms among fungal species. In this study, we demonstrated the seedborne transmission of sheath rot pathogens and provided novel insights by highlighting the predominance of F. equiseti and the detection of infections in asymptomatic seeds. A total of 75 fungal isolates were obtained from rice leaf sheaths, seeds, and harvested grains across CMS, inbred, and hybrid rice varieties. ITS rDNA sequencing identified 42 isolates as S. oryzae and 33 as Fusarium spp., including F. equiseti (29), F. incarnatum (1), and F. proliferatum (3). The detection of these pathogens in both pre-planting seed samples and post-harvest grains demonstrates their ability to spread through seeds. Importantly, their presence in asymptomatic seeds and grains indicates that routine visual inspection is insufficient for seed health monitoring.

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