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INDONESIA
JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION)
Published by Universitas Andalas
ISSN : 25800604     EISSN : 26213141     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Arjuna Subject : -
Articles 161 Documents
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Effectiveness of Dose and Application Interval of Ocimum sanctum Essential Oil as Bactrocera spp. Attractant on Siamese Orange Plants Amri, Lutfir Rahman; Arneti, Arneti; Reflinaldon, Reflinaldon; Syahrawati, My
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 8 No. 2 (2024): December 2024
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.2.88-98.2024

Abstract

Fruit flies (Bactrocera spp.) are the most detrimental pests on siamese orange fruit (Citrus nobilis Linnaeus). One technique to control fruit flies that are safe for the environment and do not cause residues on plants is the use of attractants. The research aimed to study the effect of dose and application interval of basil essential oil for fruit fly control on Siamese orange plants. This research was conducted in citrus plantations of Gunung Omeh District, Lima Puluh Kota Regency, West Sumatra, Indonesia, and Insect Bioecology Laboratory, Faculty of Agriculture, Universitas Andalas. The study used a separate plot design consisting of doses of basil essential oil as the main plot and application intervals as subplots. The observed variables were species and the population of fruit flies. The results of observations found Three species of fruit flies, namely Bactrocera dorsalis, Bactrocera carambolae, and Bactrocera umbrosa, were successfully trapped during the observation with the highest number of catches of 278.33 individuals/trap, 15.33 individuals/trap, and 2.67 individuals/trap, respectively. Basil essential oil with a dose of 1.5 ml and an application interval of 3 days proved to be the most effective combination in trapping fruit flies compared to other doses and intervals. These results indicate that basil essential oil can be a potential alternative attractant in managing fruit fly populations on Siamese orange plants
The Increase of Insect Pest Population in Paddy Field Managed with an Ecological Approach using Refugia Plants and Biopesticides Alprilia, Arieska Wahyu; Windiyanti, Wiwin; Kusuma, Ramadhani Mahendra
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 8 No. 1 (2024): June 2024
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.1.31-41.2024

Abstract

Insect pests can damage plants and act as vectors of diseases such as brown planthoppers which can transmit dwarf virus disease. The presence of insect pests is influenced by the type of variety, planting patterns, and excessive use of chemical pesticides so that insect pests increase and are difficult to control. This research wanted to provide insights into the effectiveness of combining insectary plants and biopesticides as ecological strategies to manage paddy (Oryza sativa Linnaeus) insect pests. The study was conducted in February-April 2024 in Sukodadi Village, Sukodadi District, Lamongan Regency. Method of study was conducted using a combination of direct observation, insect traps, and quantitative analysis to evaluate the impact of refugia plants and biopesticides on insect pest populations in paddy fields. The analysis includes the species diversity index (Shannon-Winner), species evenness index, species richness index (Margalef), dominance index (Simpson) and similarity index (Bray-Curtis). The study obtained 2,687 individual insect pests in paddy fields with refugia and fobio and 1,761 individuals in paddy fields without refugia and fobio. Insect pests were more abundant in paddy fields with refugia and fobio compared to fields without refugia and fobio. Refugia provides alternative habitats and additional resources for insect pests, and the use of biopesticides can create temporary ecosystem imbalances, and increase the population of insect pest.
Interaction of Predatory Ladybird Beetle, Micraspis discolor with Nilaparvata lugens throughout Paddy Growing Seasons Hanifah, Alia Natasha; Musa, Nadia Nisha; Noraziyah, Abd Aziz Shamsudin; Yaakop, Salmah
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 8 No. 1 (2024): June 2024
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.1.21-30.2024

Abstract

Coccinellidae is a high-interest family that has performed well and is widely distributed. It is valuable in economic service because it acts as an agricultural biological control agent. The Micraspis discolor (Syn=Verania) (Coleoptera: Coccinellidae) is a successful omnivorous predator in rice ecosystem and functions well as a general biological control for maintaining the population of brown planthopper (BPH) (Nilaparvata lugens), the major rice pest worldwide. Studies of natural enemies’ abundance are necessary to increase the practical use of biological control in agriculture. This study investigated the abundance correlation of M. discolor (prey) and rice pest N. lugens (prey) from two different geographical areas of rice fields in west and south Peninsular Malaysia. The cyclone lightrap and sweep net method succeeded in collecting 185 individuals of M. discolor and N. lugens. The study indicated that M. discolor, and the N. lugens collected from Selangor were more numerous than Johor in the ripening phase than in the reproductive and vegetative phases. M. discolor can be found in all stages of rice growth. There are positive correlations between M. discolor and N. lugens in both localities throughout the rice growing season. The positive correlation highlighted that the number of pests has increased parallel to the number of predators and vice versa. The use of M. discolor as a predator is essential in agriculture, along with the treatment of a healthy ecosystem landscape of diverse vegetation combinations, which helps to reduce the use of pesticides.
Eksplorasi dan Karakterisasi Rizobakteri untuk Mengendalikan Jamur Fusarium fujikuroi secara In vitro Rahma, Zola Puti; Rahma, Haliatur; Sulyanti, Eri
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 8 No. 2 (2024): December 2024
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.2.123-137.2024

Abstract

Rhizobacteria is bacteria that found in the root zone of plants. Rhizobacteria can act as biocontrol agents against Fusarium fujikuroi, the fungus that causes bakanae disease in rice plants. This study aimed to obtain rhizobacteria isolates from the roots of rice plants and to determine their characteristics as biocontrol agents against F. fujikuroi in vitro. This research consisted of two stages: 1) Exploration of rhizobacteria from the roots of rice plants in Padang City, West Sumatera, Indonesia and 2) Antagonistic character of Rhizobacteria against F. fujikuroi in vitro including: antagonistic test, hydrolytic enzyme production test (protease, amylase, and chitinase), and HCN compound production test. Based on the research, 32 rhizobacterial isolates were obtained as candidates for biological agents. All rhizobacterial isolates can suppress the growth of Fusarium fujikuroi in vitro with an inhibition percentage of 19.43-73.53%. The 4 best isolates in suppressing the growth of Fusarium fujikuroi are Kr 2.2 from Kuranji, KG 2.2 from Korong Gadang, PA 2.1 and PA 1.2 from Pasar Ambacang with an inhibition percentage of 60.39-73.53%. The four isolates are also able to produce hydrolysis enzymes (protease, amylase and chitinase) and HCN compounds
Potential Attack of Rice Field Rat (Rattus argentiventer) on Rice Crops Based on Climate Factors in Karawang Regency, West Java, Indonesia Aprilia, Lupita; Koesmaryono, Yonny; Priyambodo, Swastiko
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 8 No. 2 (2024): December 2024
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.2.63-77.2024

Abstract

The production of rice is closely related to the presence of pests, one of which is the rice field rat (Rattus argentiventer). The development of pests that attack plants is influenced by the dynamics of climate factors, both directly and indirectly. The climate in Karawang Regency is highly suitable for the growth of R. argentiventer. In the rice - rice - intercrop cropping pattern, climate factors have strong influence on the infestation of rice field rats during the intercrop season. Meanwhile, climate factors have low influence during the rice monocrop season. Based on CLIMEX output, the altitude difference in Karawang Regency does not have a significant effect on the environment suitability for the growth and development of rice field rats, allowing them to live in any rice field in Karawang Regency. Based on climate scenarios, the suitability of the climate in Karawang Regency for the potential growth and development of rice field rats is projected to decrease in the 2070s. Increasing temperatures and decreasing rainfall cause the rice field rats to experience dry stress.
Physiological Interference of Nanoemulsion-Formulated Botanical Insecticide Para-Menthane-3,8-Diol on Spodoptera frugiperda Fadhlurrahman, Rayhan; Lina, Eka Candra; Nelly, Novri
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 9 No. 2 (2025): December 2025
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.9.2.119-13-.2025

Abstract

Para-menthane-3,8-diol (PMD), derived from citronellal of citronella plants, has potential as an eco-friendly botanical insecticide for controlling Spodoptera frugiperda. This study aimed to evaluate the physiological interference caused by a PMD nanoemulsion formulation on S. frugiperda. Bioassays were conducted using the leaf-dip method. Data were analyzed using analysis of variance (ANOVA), followed by the Least Significant Difference (LSD) test with Statistix 8 and Duncan’s multiple range test at a 5% significance level using SPSS version 25. Probit analysis with POLO PLUS was performed to determine LC₂₅ and LC₅₀ values. The results showed that PMD nanoemulsion induced significant physiological interference in S. frugiperda, as indicated by increased mortality with LC₂₅ and LC₅₀ values of 0.15% and 0.48%, respectively. At a concentration of 0.75%, the treatment disrupted development by reducing pupation and adult emergence to 30% and altering the sex ratio to 1 male: 0.22 female. Sublethal interference was evident through strong antifeedant activity (62.88%) and pronounced changes in physiological parameters, including consumption rate (0.0328 mg/day), growth rate (0.0023 mg/day), and efficiency of ingested food (6.0029 mg/day). Overall, the PMD nanoemulsion formulation interfered with survival, feeding behavior, growth, and developmental physiology of S. frugiperda, highlighting its potential as an eco-friendly botanical insecticide.
Ketahanan Varietas Padi Lokal Asal Kabupaten Pesisir Selatan Terhadap Serangan Wereng Batang Coklat Nilaparvata lugens Stal. (Hemiptera: Delphacidae) Safitri, Dea; Nelly, Novri; Arneti, Arneti
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 9 No. 2 (2025): December 2025
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.9.2.72-82.2025

Abstract

The use of resistant rice varieties remains a key component in managing the brown planthopper (BPH), Nilaparvata lugens Stål (Hemiptera: Delphacidae). However, information on the resistance of indigenous rice varieties from South Pesisir Regency, West Sumatra Province, Indonesia, is still limited. This study aimed to evaluate the resistance levels of several local rice varieties from South Pesisir Regency to BPH. The experiment was conducted under laboratory conditions using a completely randomized design with seven treatments and four replications. The treatments consisted of five local rice varieties (Sarai Sarumpun, Kutu, Bakwan, Banang Salai, and Bujang Marantau), with TN1 and IR74 used as susceptible and resistant controls, respectively. Seven-day-old rice seedlings were infested with second–third instar BPH nymphs. Variables observed included BPH attack symptoms, mortality, attack percentage, and attack intensity. The results showed significant variation in resistance among the tested varieties. Banang Salai exhibited the highest resistance, with 83.13% BPH mortality, 68.75% attack percentage, and 50.34% attack intensity, indicating a resistant response. In contrast, Sarai Sarumpun showed the lowest resistance, with only 25.94% BPH mortality and the highest attack intensity (90.52%), and was classified as highly susceptible. These findings demonstrate that Banang Salai is a promising local genetic resource for BPH resistance, highlighting the potential of indigenous rice varieties to support sustainable pest management.
First Detection of Major Viruses Causing Mixed Infections in Melon (Cucumis melo L.) in Bengkulu Province, Indonesia Sutrawati, Mimi; Bustamam, Hendri; Ginting, Sempurna Br.; Pradita, Ratna Nabila; Mustika, Ella; Aulia, Ewa
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 9 No. 2 (2025): December 2025
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.9.2.108 - 118.2025

Abstract

Melon cultivation has increased rapidly in recent years and is frequently associated with widespread virus-like symptoms in Bengkulu Province, Indonesia; however, thereis no formal documentation of the mixed viral infections has been available. Therefore, this study aimed to detect major viruses infecting melon crops in Bengkulu Province and to evaluate their occurrence based on field symptoms and serological detection. Field surveys were conducted at three melon cultivation sites: Kandang Limun Village (Bengkulu City), Air Sebakul Village (Central Bengkulu Regency), and Tawang Rejo Village (Seluma Regency). Symptomatic leaf samples were collected purposively. Virus detection was performed using the Dot Immunobinding Assay (DIBA) with antisera specific to Cucumber mosaic virus (CMV), Tobacco mosaic virus (TMV), and Papaya ringspot virus (PRSV). The results showed that the dominant symptoms of viral infection in melon plants included mosaic, vein banding, chlorosis, leaf curling, and stunted growth in both Snow & Rock and Merlin F1 varieties. Disease incidence varied among varieties and locations, with the highest incidence recorded in Snow & Rock (73.3%). Serological detection revealed that 100% of symptomatic samples tested positive for CMV, TMV, and PRSV, confirming that all infections occurred as mixed infections. This study represents the first report of mixed viral infections in melon crops in Bengkulu Province. These findings demonstrate that overlapping and variable field symptoms cannot be attributed to a single virus and cannot be reliably distinguished through visual diagnosis alone, highlighting the importance of laboratory-based diagnostic approaches for accurate virus identification.
The Pengaruh Takaran Pupuk Nitrogen terhadap Serangan Penyakit Layu Fusarium dan Pertumbuhan pada Tanaman Pisang (Musa sp.) Arifandi, Zulfahri; Chrisnawati, Chrisnawati; Meyuliana, Aulia; riska, riska; Jumjunidang, Jumjunidang
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 9 No. 2 (2025): December 2025
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.9.2.131 - 141.2025

Abstract

Fusarium wilt disease caused by Fusarium oxysporum f. sp. cubense (Foc) is a major constraint in banana cultivation, and its development in the field is frequently associated with improper nitrogen fertilization. However, information on how different nitrogen fertilizer rates influence Fusarium wilt severity remains limited. This study aimed to evaluate the effect of varying nitrogen doses on Fusarium wilt and growth of banana. The experiment was conducted under laboratory and field conditions at the Horticulture Research Center of BRIN, Solok, Indonesia, using a randomized block design with nine treatments and four replications. The treatments were nitrogen with different rates (control, 100, 250, 400, and 550 kg ha⁻¹ year⁻¹), applied with and without Foc inoculation. The results demonstrated that nitrogen fertilization enhanced vegetative growth of banana plants under pathogen-free conditions. However, in Foc-infected plants, increasing nitrogen rates—particularly at high levels—exacerbated disease development. High nitrogen rates (400–550 kg ha⁻¹ year⁻¹) accelerated symptom appearance, indicated by shorter incubation periods, and increased disease severity. In contrast, a moderate nitrogen rate (250 kg ha⁻¹ year⁻¹) delayed symptom development and reduced disease severity, although it did not prevent infection. These findings suggest that excessive nitrogen fertilization increases Fusarium wilt severity, while moderate nitrogen application may help suppress disease progression. Therefore, nitrogen management in Fusarium wilt–endemic banana production areas should prioritize moderate nitrogen rates and avoid excessive fertilization as part of an integrated and sustainable disease management strategy.
Struktur Komunitas dan Sebaran Populasi Kutu Putih (Hemiptera: Pseudococcidae) pada Tanaman Ubi Kayu di Bali: Implikasi Pengelolaan Hama Berkelanjutan Astuthi, Made Mika Mega; Marsadi, Dicky; Dirgayana, I Wayan
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 9 No. 2 (2025): December 2025
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.9.2.83 - 94.2025

Abstract

Mealybugs (Hemiptera: Pseudococcidae) are important pests that threaten cassava in Bali; however, detailed information on their community structure and spatial distribution remains limited. This study aimed to analyze the community structure and spatial distribution patterns of mealybugs infesting cassava across Bali Province, Indonesia. Field sampling was conducted in nine regencies—Jembrana, Tabanan, Buleleng, Badung, Denpasar, Gianyar, Bangli, Klungkung, and Karangasem—using a diagonal sampling method. In each regency, five sampling units were established, with five cassava plants observed per unit. On each plant, three upper, middle, and lower leaves were examined. The results of the study showed four mealybug species: Phenacoccus manihoti, Paracoccus marginatus, Ferrisia virgata, and Pseudococcus jackbeardsleyi, with species richness index values ranging from 0.368 to 0.388. All species were recorded in all surveyed regencies and exhibited a predominantly random spatial distribution pattern, as indicated by a variance-to-mean ratio (S²/X ≈ 1). Overall dominance was highest for P. marginatus (46.23%), particularly in Karangasem, followed by P. manihoti (45.72%) in Denpasar. The mealybug community structure was characterized by a diversity index (H′) ranging from 0.73 to 1.22, an evenness index (E) ranging from 0.16 to 0.24, and a dominance index (C) ranging from 0.32 to 0.54, indicating spatially variable communities that ranged from relatively stable to less stable conditions. These findings provide the baseline data on the community structure and spatial distribution of mealybugs on cassava in Bali, offering important insights for developing targeted monitoring and sustainable pest management strategies

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