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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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Arthropods Diversity on Soybean Fields with Integrated Pest Management and Conventional Systems in Gandusari District, Blitar Regency Niko Mahendra; Bambang Tri Rahardjo; Tita Widjayanti
Journal of Tropical Plant Protection Vol. 4 No. 1 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.1.3

Abstract

Various negative impacts of pesticides must be avoided by applying management principles that have as little negative impact on the environment as possible using an integrated pest management (IPM) approach. This study aimed to examine the diversity of arthropods and the feasibility of farming in IPM and conventional fields on soybeans. Arthropod sampling was carried out in September–December 2021 using a yellow pan trap, yellow sticky trap, and visual methods. The arthropod population found was analyzed using the T-test, and the level of arthropod diversity was calculated based on the diversity index (H'), species richness index (R), evenness index (E), and dominance index (C). The feasibility of farming on both fields was calculated using the R/C ratio and BEP prices. The results showed that the number of arthropods in IPM and conventional fields was significantly different. In both fields, the diversity index value was in the medium category, the species richness index value and the evenness index value were in the high category, and there was no dominance in both fields. Even though it belonged to the same category, the index value of arthropod diversity in the IPM field was higher than in the conventional field. In IPM and conventional fields, the R/C ratio values were 1.01 and 1.06, respectively, while the BEP value in IPM and conventional fields was IDR 10,601.44 and IDR 10,075.14.
Effectiveness of Binahong (Anredera cordifolia) Leaf Extract in Suppressing The Growth of Xanthomonas oryzae and The Occurrence of Bacterial Leaf Blight Disease in Rice Plant (Oryza sativa) Dwi Kusnul Khotimah; Abdul Latief Abadi; Fery Abdul Choliq
Journal of Tropical Plant Protection Vol. 4 No. 1 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.1.4

Abstract

Rice, as a staple food, is widely produced across Indonesia. However, bacterial leaf blight (BLB) in rice is caused by Xanthomonas oryzae pv. oryzae (Xoo) has been reported to cause significant crop yield losses. The continuous use of chemical bactericides to control BLB is not environmentally sustainable. This study investigated the potential of the Binahong plant as a botanical pesticide to suppress the growth of Xoo bacteria. Binahong is readily available in Indonesia and can be propagated generatively and vegetatively. The research employed a Completely Randomized Design (CRD) experimental method to evaluate the effectiveness of Binahong leaf extract against Xoo pathogens in vitro at various concentrations (0.5%, 1%, 1.5%, 2%) alongside positive and negative controls. In-vivo observations were made on several parameters: seed germination percentage, disease incidence, incubation period, and plant length. Data analysis revealed that Binahong leaf extract inhibited the growth of Xoo bacterial colonies in vitro at all tested concentrations (0.5% to 2%). Furthermore, soaking rice seeds in Binahong leaf extract was effective in vivo at all concentrations, demonstrating significant differences compared to the negative control and no significant differences compared to the positive control.
Influence of Phosphate Powder Application on The Biology and Demographic Statistics of Green Ladybug (Nezara viridula L.) (Hemiptera: Pentatomidae) on Soybean Pods Rohma Wulan Septiani; Bambang Tri Rahardjo; Tita Widjayanti
Journal of Tropical Plant Protection Vol. 4 No. 2 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.2.1

Abstract

Green ladybug Nezara viridula (Hemiptera: Pentatomidae) is one of the harmful pests on soybeans. One of the ways to suppress attacks is by using phosphate fertilizers. The effect of applying phosphate fertilizer could be seen using biological parameters and demographic statistics. The research was conducted at the Pest and Wirehouse Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture, Brawijaya University, from January to June 2022. The experimental design in this study used Completely Randomized Design (CRD) in the laboratory and wired house. There were four treatment doses of phosphate fertilizer consisting of 0 kg/ha (control), 25  kg/ha (low), 50 kg/ha (recommendation), and 75 kg/ha (high). Observations were made on 90 individuals of N. viridula in each treatment divided into three replications. The type of phosphate fertilizer used in this study was SP36 fertilizer. The observational variables of this study were the biology and demographic statistics of N. viridula. Observations were made daily, and the data were compiled in a live table. Calculations were carried out using demographic statistics and analysis of variance to determine differences between treatments using HSD 5%. The results showed biological and demographic statistical differences in N. viridula: personality, life cycle, and gross growth rate (GRR). These findings have significant implications for pest management in soybean cultivation, suggesting that applying phosphate fertilizers can effectively suppress the attacks of N. viridula, particularly at the recommended dose.
The Influence of Trap and Refugia Plants on Populations and Attacks of Leaf-Miner Flies Liriomyza sp. on Shallots Cultivation Lia Setiawati; Gatot Mudjiono; Tita Widjayanti
Journal of Tropical Plant Protection Vol. 4 No. 1 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.1.1

Abstract

Leaf miners (Liriomyza sp.) are one of the pests affecting shallot plants. Attacks by Liriomyza sp. on shallot plants lead to tuber rot and leaves drying out, resembling burn damage. One control method is to utilize trap plants and refugia. Trap plants are specific species that attract pests, diverting them from the main crop. Refugia, on the other hand, are areas where pests can seek shelter, reducing their impact on the main crop. This study aimed to assess the impact of trap plants and refugia on the population and attacks of Liriomyza sp. in shallot crops. The research was conducted from June to September 2021 at the experimental field of the Faculty of Agriculture in Jatimulyo Village, Lowokwaru District, Malang City, East Java. Observation parameters included the population of Liriomyza sp., damage intensity, population of natural enemies, plant height, and number of leaves. The results indicated that different types of trap plants significantly influenced the population of Liriomyza sp. and damage intensity compared to the control treatment. However, different trap plant types did not significantly affect the population of natural enemies. The natural enemies identified included Vespidae, Coenosia sp., and Opius sp. Additionally, various trap plant types did not significantly impact plant height and the number of leaves.
Diversity And Abundance Of Beetle In The Complex Rice Farming System In Sukorejo Village, Gondanglegi District, Malang Regency Lang Lang Meilany Noor Ayuba; Akhmad Rizali
Journal of Tropical Plant Protection Vol. 4 No. 1 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.1.2

Abstract

Complex rice systems are a type of farming system that provides shelter for various insects, thereby reducing pests and plant diseases while enhancing farmer's economies. Plants and other components integrated with rice enhance beetle diversity and abundance in complex rice systems. This study aimed to determine the diversity and abundance of beetles in a complex rice system and the factors that can influence them. The study was conducted on a complex rice system farm in Sukorejo Village, Gondanglegi District, Malang Regency. Observations were made five, seven, and nine weeks after planting the rice. Beetles were sampled using pitfall traps and farmcop traps. The results showed differences in the diversity and abundance of beetles between farms with monoculture systems and those with complex rice systems. However, plant age, temperature, and humidity did not correlate with beetle diversity and abundance. This research concludes that complex rice systems are better than monoculture systems.
Exploration of Indole-3-Acetic Acid (IAA)-Producing Rhizosphere Fungi in Environmentally Friendly And Conventional Cabbage Fields at The UB Agrotechnopark Bagas Hadameon; Rina Rachmawati; Yohana Avelia Sandy
Journal of Tropical Plant Protection Vol. 4 No. 1 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.1.5

Abstract

Soil is a habitat for many types of microbes that have a role in maintaining soil nutrition, and most of them grow around plant roots. Factors that are quite influential in the growth process are the hormone auxin, which has a role in stem bending and stimulates differentiation. This study aimed to obtain a genus of IAA hormone-producing rhizosphere fungi (Indole-3-Acetic Acid) and determine the effect of environmentally friendly and conventional land cultivation on the diversity of IAA hormone-producing fungi at Agrotechnopark UB Cangar Garden. Fungi isolates were cultured on Potato Dextrose Agar (PDA) and Potato Dextrose Broth (PDB) media enriched with tryptophan as a precursor to form IAA. IAA measurements were carried out qualitatively by adding the Salkowski reagent and quantitatively by measuring the absorbance. As many as 10 rhizosphere fungal isolates were obtained from environmentally friendly land and 8 fungal isolates from conventional land, which produced IAA hormones. The fungal genera obtained included Acremonium, Aspergillus, Colletotrichum, Fusarium, Penicillium, and Trichoderma. Environmentally friendly cabbage fields (average: 283.8 ppm) showed higher yields than conventional fields (average: 140.9 ppm) in producing IAA hormones. There was a correlation between soil pH and organic matter on fungal diversity, with a correlation value of 0.878. The diversity index value of rhizosphere fungi was 1.359; the evenness index was 0.845, and the dominance index was 0.302 on environmentally friendly land. The diversity index value of rhizosphere fungi was 1.213; the evenness index was 0.875, and the dominance index was 0.344 on conventional land.
Potential of Siam Weed Leaves (Chromolaena odorata) in Suppressing Anthracnose Disease (Colletotrichum gloeosporioides) in Shallot (Allium ascalonicum L.) in In Vitro Paulina Akita Mayasari; Abdul Latief Abadi; Fery Abdul Choliq
Journal of Tropical Plant Protection Vol. 4 No. 2 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.2.2

Abstract

Anthracnose disease (Colletotrichum gloeosporioides) is one of the important diseases in shallots. Generally, farmers use synthetic fungicides. Thus, Siam weed (Chromolaena odorata) leaf extract can be used to reduce it because it has antifungal compounds. This study aimed to examine the effect of siam weed leaf extract on the growth of C. gloeosporioides and its antifungal compounds. This research used a completely randomized design (CRD). It would be continued with the SRD test at the 5% level if the result was significantly different. Treatment consisted of 0, 2, 4, 6, 8, and 10% Siam weed leaf extract with four replications. Bioactive compounds in siam weed leaves were tested by the UPT Herbal Materia Medica Batu Laboratory and Chem-Mix Pratama Laboratory, Yogyakarta. Probit analysis was also used to obtain the LC50 value. The results showed that 10% concentration was the most effective treatment because it produced a fungicidal effect on C. gloeosporioides. However, a 2.09% concentration of siam weed leaf extract was able to cause 50% of C. gloeosporioides' mortality. In addition, siam weed leaf extract contains antifungal compounds, such as tannins, phenols, flavonoids, alkaloids, and saponins.
Effect of Application of Guava Leaf Extract (Psidium guajava L.) on Tobacco Mosaic Virus (TMV) Attack on Red Chili (Capsici annum L.) Serdinia Yugista; Mintarto Martosudiro; Fery Abdul Choliq
Journal of Tropical Plant Protection Vol. 4 No. 2 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.2.3

Abstract

Red chili (Capsici annum L.) is a significant horticultural commodity widely consumed in Indonesia. From 2016 to 2020, red chili production consistently increased, reaching 1,264,190 tons in 2020. Despite this growth, certain regions still face production shortfalls relative to consumption needs. A major challenge in red chili cultivation is the Tobacco Mosaic Virus (TMV), which remains difficult to control as no pesticides currently target plant viruses directly. This study investigated the impact of guava leaf extract (Psidium guajava L.) on the incubation period, severity of TMV infection, and growth parameters in red chili plants. The experiment utilized a complete randomized design comprising six treatments with four replications, each involving two plants. The results indicate that four applications of guava leaf extract extended the TMV incubation period to 19.25 days post-inoculation and reduced attack intensity by 4.93%. Additionally, this treatment enhanced plant growth, evidenced by increased plant height and leaf number, and was the only treatment classified as resistant compared to other tested methods.
Diversity And Abundance of Collembola in Agroforestry Land in UB Forest Rusdi Ali Sabar Simatupang; Bambang Tri Rahardjo
Journal of Tropical Plant Protection Vol. 4 No. 2 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.2.4

Abstract

Collembola is one of the soil arthropods from the subphylum Hexapoda, namely six-legged arthropods that live in the soil, soil surface, leaf litter, under decomposed stems, and in living fungi. This study aims to determine and examine the diversity and abundance of Collembola on agroforestry land in UB Forest. The preparation and implementation of the research consisted of the determination of plot land, determination of soil sampling points, making holes and soil sampling, extraction of Collembola with a Berlese funnel, sorting and identification of Collembola, soil chemistry analysis and data analysis using the index formula of diversity, evenness, dominance, richness, and abundance and further analyzed with the T-test. The largest population of Collembola is found in pine + coffee land, which is 242 individuals. The highest diversity index is found in pine land, which is 1.04 which is classified as moderate or quite stable. The highest percentage of Collembola species abundance in pine + coffee fields, pine lands, and coffee fields is the family Isotomidae. The lowest percentage of Collembola abundance in pine + coffee fields and pine fields is the family Hypogastruridae, while in coffee fields it is the family Sminthuridae.
The Effectiveness Test of Trichoderma harzianum, Mycorrhiza and Bacteria B8 on the Growth of Phytophthora nicotianae in Pineapple Plants (Ananas comosus L. Merr) at PT.Great Giant Pineapple Candra Violita Larasati; Mochammad Syamsulhadi; Tita Widjayanti
Journal of Tropical Plant Protection Vol. 4 No. 2 (2023)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2023.004.2.5

Abstract

This study aims to determine the potential of biological agents to inhibit the pathogen P.  nicotianae that causes liver rot and the effect of biological agents on the growth of pineapple plants at PT. Great Giant Pineapple. The research was carried out at the Experimental Field and Research and Development Protection Laboratory of PT. Great Giant Pineapple, Terbanggi Besar, Central Lampung from September to November 2022. The research was carried out in several stages, namely the preparation stage and the implementation stage. The preparation stage includes land preparation, breeding and application of T. harzianum, preparation of liquid culture of T. harzianum and B8 bacteria, dipping crowns, and selection of crowns and tagging. While the implementation phase includes planting, application of T. harzianum, mycorrhiza, and B8 bacteria, observation of disease occurrence level, antagonist test, observation of new leaf growth, and plant observation. The data obtained were analyzed using the T-test, which compared the control plot with the treatment plot (T. harzianum, mycorrhiza, and B8 bacteria). The results showed that the application of the biological agent T. harzianum had a significant effect on suppressing the pathogen P. nicotianae that causes heart rot in pineapple plants in vitro. In addition, the application of T. harzianum, mycorrhiza, and B8 bacteria significantly affected the growth of the number of tillers, d-Leaf height, and d-Leaf index.

Page 4 of 7 | Total Record : 61

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