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INDONESIA
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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Comparison of Arthropod Diversity in Organic and Conventional Rice Cultivation in Trawas District, Mojokerto Regency Ayumi, Cicik Nur; Rahardjo, Bambang Tri
Journal of Tropical Plant Protection Vol. 5 No. 1 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.1.1

Abstract

Different cultivation techniques for rice (Oryza sativa L.) are known to affect arthropod populations and diversity levels. This research was conducted to study how arthropod diversity can be affected by different cultivation techniques. The research was carried out from October 2022 to March 2023. Arthropod diversity observations were carried out in the organic rice field of Kampung Pertanian Organik Brenjonk and a conventional rice field belonging to a farmer in Penanggungan Village, Trawas District, Mojokerto Regency. Data were collected weekly for 12 observations. Arthropods were collected using passive methods, such as pitfall and yellow sticky traps, and active methods, such as sweep netting and handpicking. The data were analyzed to assess the diversity level. The results showed more arthropods in the organic rice field, with 1815 individuals consisting of 4 classes, 13 orders, 52 families, 70 genera, and 74 morphospecies. In contrast, in the conventional rice field, 1028 individuals were found, consisting of 3 classes, ten orders, 28 families, 32 genera, and 33 morphospecies. The calculation results of arthropod diversity levels showed that the organic field is better than the conventional field.
Effectiveness of Betel Leaf Extract Against Cercospora sp. Pathogen Causing Chili Leaf Spot In-Vitro Mahfud, Muhammad Afif; Martosudiro, Mintarto; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 5 No. 1 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.1.2

Abstract

The betel plant grows a lot and is easy to find in Indonesia. Part of the betel leaf contains antifungal compounds. This research examined the effect of betel leaf extract and its effective concentration in suppressing the pathogen Cercospora sp. in vitro. The research was conducted at the Pesticide Toxicology Laboratory, Universitas Brawijaya. Using a completely randomized design (CRD) with six treatments and five replications. The treatment was carried out in control and betel leaf extract with concentration levels of 30,000 ppm, 50,000 ppm, 100,000 ppm, 150,000 ppm, and 200,000 ppm. The results obtained were screening tests of compounds, causal tests of extracts on fungi, percentage of inhibition, and growth rate on fungi. Giving betel extract can suppress the growth of the fungus Cercospora sp., and in the 200,000 ppm extract treatment, the results were moderately effective in testing the percentage of inhibition power of the fungus Cercospora sp., which is equal to 41%.
Exploration of Endophyte Bacteria as Bio-Agent of Fusarium sp. on Jack Bean (Canavalia ensiformis) Under In-Vitro Testing Rahmadani, Pradina; Aini, Luqman Qurata
Journal of Tropical Plant Protection Vol. 5 No. 2 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.2.3

Abstract

Indonesia is the tropical country that becomes the home of millions type of flora such as jack bean (Canavalia ensiformis). This plant has not gotten enough attention from locals as a beneficial commodity. The purpose of this research is to find out the potential of endophyte bacteria of jack bean as bio-agent to control the pathogenic attack on the jack bean caused by Fusarium sp. The step of research including sample collecting, isolation and identification of pathogenic fungus, isolation, and purification of endophyte bacteria from the root of jack bean plant, selection of endophyte bacteria as the antagonist of pathogenic fungus, inhibition test of endophyte bacteria against the fungus under in-vitro testing, and lastly, identification of bacteria. The result of the test used completely randomized design with 6 treatments and 4 replications. The result of research is there are 10 bacterial isolates. From the selection process, there are four isolates that are proven to inhibit Fusarium sp. as the fungal target, shown by the high percentage of fungal growth inhibition from antagonist test. At the end of the antagonist test, it was resulting in CE8 treatment as the highest percentage of fungal growth inhibition, reaching 76% in result. Characterization and identification were carried out to the 4 isolates, resulting in discovery of CE1 and CE5 coded bacterial isolates belong to Erwinia sp., and CE7 and CE8 belong to Clostridium sp.
Potential Test of Trichoderma harzianum and Trichoderma viridae Fungi as Agents for Degrading Fungicide Residues with Active Ingredient Mancozeb In Vitro Marsya, Tia Indi; Abadi, Abdul Latief
Journal of Tropical Plant Protection Vol. 5 No. 1 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.1.3

Abstract

This study investigated the potential of the fungi Trichoderma viridae and Trichoderma harzianum in degrading the fungicide mancozeb. The research was conducted from May to October 2021 at the Plant Diseases Laboratory and Toxicology Laboratory, Department of Pests and Plant Diseases, Faculty of Agriculture, Universitas Brawijaya. The study comprised three stages. The first stage involved a preliminary test to assess the ability of T. viridae and T. harzianum to grow in media containing mancozeb-based fungicides. The second stage focused on evaluating the degradation of mancozeb using a bioassay, with the primary observation parameter being the biomass of T. viridae and T. harzianum. In the third stage, the mancozeb degradation process was assessed in vitro, with the observation parameters including the diameter of the pathogenic fungus Fusarium sp. and the percentage change in its diameter. Results demonstrated that T. viridae and T. harzianum could grow in media contaminated with mancozeb up to a concentration of 2 grams per liter. Furthermore, both fungi showed potential in degrading mancozeb, as evidenced by the increased growth of Fusarium sp. in treated media. It indicates that the application of T. viridae and T. harzianum reduces the toxicity of mancozeb. A t-test revealed that while there were differences between T. viridae and T. harzianum in their ability to degrade mancozeb, these differences were not statistically significant.
Biology and Demographic Statistics of Spodoptera frugiperda on Corn (Zea mays L.) and Spinach (Amaranthus hybridus L.) Rahmawati, Alvina Eka; Rahardjo, Bambang Tri
Journal of Tropical Plant Protection Vol. 5 No. 2 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.2.4

Abstract

Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) is an invasive pest originally from Central America. The S. frugiperda attack was first documented in Indonesia in 2019. Due to its voracious feeding habits, S. frugiperda can lead to significant losses. This study aims to provide insights into the  developmental patterns, births, and deaths of S. frugiperda, utilizing corn as the main host and spinach as an alternative host. The research was conducted at the Pest Laboratory and wire house of  Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya from February 2023 to April 2023. This study included two treatments and ten replicates, requiring a total of 500 eggs with 25 individuals for each replicate. The results showed that the survival curve and survival rate of S. frugiperda in both treatments were classified as type I curves. The values of gross reproduction rate (GRR), net reproduction rate (Ro), intrinsic growth (r), and average generation length (T) in corn leaves were 1,280.20; 518.48; 0.27; 30.79, respectively.  In contrast, the corresponding values for spinach leaves were 927.09; 322.15; 0.21, 36.23. Based on the biological data and demographic parameters, it  can be concluded that spinach plants  may serve as viable as alternative hosts for S. frugiperda.
Effect of Fungicide Concentration with Active Ingredient Pyraclostrobin 250 EC on Leaf Spot Disease and Phylloplane Fungal Diversity in Mustard Plants (Brassica juncea L.) Aritonang, Awal Josua; Martosudiro, Mintarto
Journal of Tropical Plant Protection Vol. 5 No. 2 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.2.1

Abstract

Mustard greens (Brassica juncea L.) are vegetables that are widely liked by the public because they have benefits for body health. Mustard greens have benefits because they contain carbohydrates, proteins, and fats, 220 mg Ca, 38 mg P, vitamin A 6.4 mg, vitamin B 0.09 mg, and vitamin C 102 mg. Leaf spot disease caused by Alternaria sp. is one of the causes of the decline in mustard greens. This study aims to determine the effect of fungicide with the active ingredient pyraclostrobin on leaf spot disease and phylloplan fungal diversity in mustard plants with different concentrations. The study was carried out by applying fungicides with 6 treatments and 4 replicates with concentrations of 0.350 ml/l, 0.375 ml/l, 0.400 ml/l, 0.425 ml/l, and 0.450 ml/l. The results showed that fungicide with the active ingredient pyraclostrobin affected leaf spot disease and phylloplane fungal diversity in mustard plants. The intensity of leaf spot disease and phylloplane fungal diversity in the control treatment was higher than that of the fungicide treatment.
Effectiveness of Copper-Based Active Ingredients Against Bacterial Leaf Blight (Xanthomonas oryzae pv. oryzae) in Rice Plants Hanif, Luthfan; Abadi, Abdul Latief
Journal of Tropical Plant Protection Vol. 5 No. 2 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.2.2

Abstract

Rice is one of the food crops that is a basic need for the people of Indonesia, but rice production in Indonesia is unstable every year because of various factors, one of which is plant diseases, such as Bacterial Leaf Blight (BLB) caused by Xanthomonas oryzae pv. oryzae bacteria. Active ingredients that can be used to control bacteria are copper-based active ingredients. In addition, increasing the concentration or adding surfactant in pesticide formulations can increase the effectiveness of active ingredients. This research was conducted at the Plant Disease Laboratory, Plant Pests and Diseases Department, Faculty of Agriculture, Universitas Brawijaya and Ketangi Hamlet, Tegalgondo Village, Karangploso District, Malang Regency. The In Vitro research design used a complete randomized design (CRD) and the In Vivo used a randomized complete block design (RCBD)consisting of 7 treatments and 4 replications. The parameters observed were inhibition, intensity of BLB, phytotoxicity, yield, and efficacy level. The results showed that treating copper oxide 60 WP+Surfactant, copper oxide 60 WP, copper hydroxide 80 WP+Surfactant, and copper hydroxide 80 WP effectively controlled bacterial leaf blight. While the treatment of copper oxide Zn 60 WP and copper oxy sulfate 345 SC was ineffective in controlling BLB. Each treatment of copper-based active ingredients at a dose of 2 grams and 2 mL did not show symptoms of phytotoxicity.
Biology and Demographic Statistic Myzus persicae on Chili Plant Fadloli, Ahmad Iqbal Rijal; Rahardjo, Bambang Tri
Journal of Tropical Plant Protection Vol. 5 No. 1 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.1.4

Abstract

This research aimed to observe the biological aspects and demographic data of Myzus persicae on chili plants. The research was conducted at the Laboratory of Pests and Wire House, Department of Plant Pests and Diseases, Faculty of Agriculture, Brawijaya University, Malang, from August 2020 to July 2021. Biological observations, including the life cycle, lifespan, and fecundity, were made to gather demographic data. Parameters for demographic analysis included the gross reproduction rate (GRR), net reproduction rate (R0), intrinsic rate of increase (r), and generation time (T). The results showed that the nymphal stages lasted 2.30, 2.17, 2.28, and 2.09 days for the first to fourth instars, respectively. The mean life cycle duration was 8.85 days, with a total fecundity of 21.04 offspring per female adult. Meanwhile, the average lifespan of M. persicae was 11.93 days. Demographic statistics for M. persicae on chili showed a GRR of 51.71 individuals per generation, an R0 of 14.41 individuals per female per generation, an r of 0.38 individuals per female per day, and a T of 16.22 days.
The Effect of Landscape Composition on The Diversity and Abundance of Ants (Hymenoptera: Formicidae) in Cabbage Cultivation Area Amalia, Dinda Rayhan; Rizali, Akhmad
Journal of Tropical Plant Protection Vol. 5 No. 1 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.1.5

Abstract

Cabbage (Brassica oleracea var. capitata) is a vegetable with significant potential for cultivation due to its high economic value. However, cabbage production experiences fluctuations each year primarily due to pest factors. To control these pests, natural enemies such as ants can be utilized. Ants are highly sensitive to changes in their habitat, making them known as environmental bioindicators. Additionally, landscape structure can influence the presence of insects, including predators and parasitoids. This study aims to determine the effects of cultivation methods, habitat conditions, and landscape composition on ant diversity and abundance. The research was conducted from November 2022 to May 2023 across 12 fields in four different sub-districts: Pujon, Tumpang, Poncokusumo, and Purwodadi. The research process included landscape mapping and characterization, determination of observation plots, trap installation and sampling, species identification, collection of supporting data, and data analysis. The study yielded a total of 4,053 individuals representing 26 genera and 52 morphospecies. The ant species with the highest abundance was Lophomyrmex sp.3, while the greatest diversity was observed within the genus Tetramorium. Insecticide application and plant age did not significantly affect ant diversity and abundance; however, elevation did influence ant abundance. Additionally, landscape composition, particularly the class area (CA) of natural habitats, correlated positively with both ant diversity and abundance.
The Effect of Giving Cherry (Muntingia calabura) Leaf Extract on Tobacco Mosaic Virus (TMV) Attacks on Cayenne Pepper Plants (Capsicum frutescens L.) Salsabilla, Alyara Oktavia; Martosudiro, Mintarto; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 5 No. 2 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.2.5

Abstract

Cayenne pepper (Capsicum frutescens L.) is a horticultural crop that is widely cultivated in Indonesia and has high economic value. However, it is not uncommon for the cultivation process to encounter several obstacles, one of which is caused by the Tobacco Mosaic Virus (TMV). One of the actions that can be taken to control this disease is to use induction agents derived from plant extracts. The plants that can be used as inducers are cherry plants (Muntingia calabura). However, research on the use of cherry leaf extract is rarely applied, especially against the TMV virus.  Thus, this research needs to be conducted to determine the effect of cherry leaf extract on TMV attack on cayenne pepper plants. The study used a completely randomized design (CRD) in vivo with 6 treatments and 4 replications. The treatment given was cherry leaf extract with different application frequencies at a concentration of 5%. Parameters observed included the disease incubation period, disease intensity, plant growth, and assessment of plant resistance. The results showed that applying cherry leaf extract with an application frequency of 4 times extended the incubation period of TMV and reduced the intensity of TMV disease, with values of 17.88 days after inoculation and 11.20%, respectively. This treatment resulted in a plant resistance category of "resistant." Additionally, the application of cherry leaf extract 4 times also had a positive effect on plant growth, specifically plant height and number of leaves.

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