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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 5 Documents
 1 
Search results for , issue "Vol. 5 No. 1 (2024)" : 5 Documents clear
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%.
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 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.

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