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All Journal Agrikultura Bionatura Zuriat Jurnal Natur Indonesia AL KAUNIYAH Cropsaver : Journal of Plant Protection Jurnal AgroBiogen Buletin Penelitian Tanaman Rempah dan Obat Jurnal Agro Jurnal Perlindungan Tanaman Indonesia BERITA BIOLOGI Kultivasi Soil REns Buletin Penelitian Tanaman Rempah dan Obat Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat
Tarkus Suganda
Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Immunology & microbiology Materials Science & Nanotechnology

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Journal : Cropsaver : Journal of Plant Protection

 1 
Effect of Anredera cordifolia (Ten) Steenis Leaves Ethanol Extract in suppressing Brown PlantHopper (Nilaparvata lugens Stal.) Populations on Rice Plant Martua Suhunan Sianipar; Tarkus Suganda; Azhhar Hadyarrahman
CROPSAVER Vol 3, No 2 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v3i2.29448

Abstract

The Brown Planthopper (Nilaparvata lugens Stal.) is one of the pests that often causes rice crop failure in rice. One way to control N. lugens pests is to use of botanical insecticide. The purpose of this experiment is to study the effect of A. cordifolia leaves ethanol in suppressing N. lugens populations. The experiment used a Randomized Block Design (RDB) with 8 treatments and 4 replications. The A. cordifolia leaves ethanol extract concentration tested in this experiment consisted of 0,5%; 0,75%; 1%; 1,5%; and 2%.  The results of the experiment showed that the ethanol extract of binahong leaves with a concentration of 1%, 1.5% and 2% cause mortality of N. lugens by 52.50%, 56.25%, and 61.25% on the 14th day after application. Based on the results of this experiment, the ethanol extract of A.cordifolia leaves was not effective against N. lugen.
In-Vitro Technique For Resistance Evaluation of Rice Varieties Against Blast Disease (Pyricularia oryzae Cav.) Tarkus Suganda; Puspa Radityo Putri; Gabbi Andria Dwitia Putri
CROPSAVER Vol 2, No 2 (2019)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (486.959 KB) | DOI: 10.24198/cropsaver.v2i2.23746

Abstract

Blast, incited by Pyricularia oryzae Cav. is the most yield-limiting disease of rice.  Use of resistant varieties is the most suggested tactic for controlling this disease. Therefore, resistant varieties are continuosly developed in rice breeding program. One of the challenges in developing resistant varieties to blast is the testing methods which required the availability of optimum condition for infection and development of disease, especially it has to be done against different races of the fungus. In addition, the duration of test is required long period of time. In order to shorten the test, the in-vitro technique has been studied using inoculation to rice leaf cuts incubated in a petridishes amended with several layer of wetted sterilzed tissue.  Tests used four differenet domonant races of the fungus, i.e. 033, 073, 133, and 173, wehereas the rice cultivars used were Kencana Bali (susceptible to all races), Situ Patenggang (resistant and moderately resistant), Arize (moderately resistant to race 073) and PP3, a breeding line. Plants were scored using a pictorial scorring scale of IRRI (1996). The results showed that the in-vitro technique using leaf cuts was able to separate the reaction of the resistant from of the susceptible rice to blast disease. It confirmed the reaction of the result of standard greenhouse test. Cultivar Kencana Bali was consistantly susceptible to ras 173 both in in-vitro, standard greenhouse, and in field. The in-vitro technique was able to speed up the inoculation process, prevent a mix of races and release of races to environment. It also can minimize cost of testing, and speed up the selection process of resistance in plant breeding to develop blast resistant varieties.
The toxicity of neem (Azadirachta indica), citronella (Cymbopogon nardus), castor (Ricinus communis), and clove (Syzygium aromaticum) oil against Spodoptera frugiferda Danar Dono; Yusup Hidayat; Tarkus Suganda; Syarif Hidayat; Neneng Sri Widayani
CROPSAVER Vol 3, No 1 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (446.464 KB) | DOI: 10.24198/cropsaver.v3i1.28324

Abstract

An important pest in corn plantation recently reported in Indonesia was Spodoptera frugiperda, a polyphagous pest that have a fast spread rate and caused high damage on young corn. One control that able to use is botanical insecticide. This experiment aims to determine the toxicity of neem, jatropha, clove, and citronella oil (concentrations of 0.1% and 0.05%) against S. frugiferda in corn. Tests carried out using the feeding assay or residue on corn leaves (size 5 x 5 cm). Then, the leaf treatment was given to 10 larvae of S. frugiferda (instars 2) for 48 hours. After that, the feed replaced with untreated feed. The test results showed that concentration neem oil of 0.1% caused the highest mortality of S. frugiferda. Neem oil exposure is also able to inhibit the time of larval development, reduce the percentage of feed consumption, and the weight of pupa the S. frugiferda. Other vegetable oils exposure gave lower mortality in the test insects and some treatments were not significantly different from the controls on the parameters of larval development, pupae weight, and percentage of feed consumption. Neem oils showed strong toxicity against S. frugiperda larvae with  Lethal Concentration 50 (LC50) of 0.079 % (CI (95%) 0.066 – 0.095%) and LC95 of 0.338% (CI (95%) 0.024-0.567%).
Potency of Yeasts Isolated from Shallot Rhizosphere to Control Basal Rot (Fusarium oxysporum f.sp. cepae) Disease on Shallot Sri Hartati; Risma Yuniah Nur’haqi; Wahyu Daradjat Natawigena; Tarkus Suganda
CROPSAVER Vol 5, No 1 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i1.38099

Abstract

One of the major diseases of shallots is basal rot disease caused by Fusarium oxysporum f.sp. cepae (FOC). Biocontrol agents can be used as an environmentally friendly control method. Some yeasts isolated from the rhizosphere may have the potencies to control soilborne plant pathogen such as FOC. This study was objected to obtain yeast isolates from the rhizosphere of shallots that have the potencies to control basal rot. The first step was isolation of yeasts from the rhizosphere of shallots and isolation of FOC. The yeast isolates were then tested for their potencies in suppressing FOC in vitro and decreasing the basal rot disease on the shallot plants. There were ten yeast isolates obtained from the rhizosphere of shallot, in which seven isolates were non pathogenic to shallot plant. These seven isolates were further tested  for their potencies in controlling FOC and basal rot disease. The results showed that those isolates were able to inhibit the colony growth of FOC by 16,11% - 38,33% in the in vitro dual culture test, and 21,11% - 38,89% in the production of volatile compound test. The isolates also suppressed the basal rot disease incidences by 8,30% - 24,98%. Isolates Cm2 and Cm3 caused the highest disease suppression (24,98%).
Inventory and Disease Incidence in 38 Accessions of Taro Plants (Colocasia esculenta L.) in Jatinangor, Sumedang Regency, West Java Yulia, Endah; Yunira, Alma; Hidayat, Syarif; Djaya, Luciana; Widiantini, Fitri; Suganda, Tarkus; Karuniawan, Agung
CROPSAVER Vol 7, No 2 (2024)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v7i2.58942

Abstract

Taro is an important agricultural commodity with considerable prospects for international market competition. However, its cultivation faces several challenges, particularly pathogen infections that can lead to substantial yield losses. Conducting a disease inventory in taro plants is essential for effective disease management and serves as a preliminary step in developing resistant taro varieties. This study aimed to document diseases affecting 38 accessions of taro plants. The research was conducted from August to October 2021 at the Ciparanje Jatinangor Experimental Field and the Phytopathology Laboratory within the Department of Plant Pests and Diseases at the Faculty of Agriculture, Universitas Padjadjaran, located in Sumedang Regency. The methodology employed both qualitative and quantitative descriptive approaches. Data collection involved observing the incidence and severity of diseases, as well as identifying the pathogens responsible for the diseases. A total of 292 taro plants were examined during this study. The diseases identified included brown leaf spot (Cladosporium colocasiae), shot hole (Phoma sp.), orange leaf spot (Neojohnstonia colocasiae), white leaf spot (putative Pseudocercospora colocasiae), and leaf blight (Phytophthora colocasiae), along with other symptoms suspected to be caused by root pathogens and viruses.The most prevalent disease observed at the experimental site was brown spot disease, while leaf blight was identified as the most damaging. The incidence of leaf spot and leaf blight reached 100% across nearly all accessions of taro planted at the research site, with the highest severity of disease recorded at 49.65%.
Evaluation Behavior of Highland Vegetable Farmers on West Bandung Regency To Use Good Pesticide Practices Rasiska, Siska; Sudarjat, Sudarjat; Dono, Danar; Suganda, Tarkus; Setiawan, Iwan
CROPSAVER - Journal of Plant Protection Vol 8, No 1 (2025)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v8i1.62005

Abstract

Synthetic pesticides are one of the pest control substances most widely used by highland vegetable farmers, including insecticides and fungicides. This research aims to evaluate the use of pesticides by highland vegetable farmers in Lembang and Cisarua Districts, West Bandung Regency. The methods used in this research are surveys and observations. Interviews using questionnaires were conducted with 90 highland vegetable farmers, in-depth interviews with extension workers and exporter institutions. Secondary data was obtained from the horticultural crop agriculture service and the Agriculture, Fisheries, and Forestry Extension Center. These data were analyzed descriptively regarding the knowledge, awareness, and skills of highland vegetable farmers in using pesticides. The results of the research show that highland vegetable farmers in Lembang and Cisarua Districts, West Bandung Regency, know the information on labels, especially dosage, target pests, method of application, and type of plant, also know the function of pesticides, dangers, prohibitions on disposing of pesticide waste, and the reasons. Farmers know the SOP for pesticide use from promotional materials, and direct training, as well as from extension workers. Farmers buy and use their own pesticides at agricultural shops, considering the target organisms and efficacy based on information from fellow farmers. Farmers mix two types of pesticides with water as a solvent,  put it first in a bucket, and stir with a stirrer. Pesticides are applied at 10.00-15.00 until they are finished, then wash the hands. Pesticides are stored in a locked place, such as a warehouse, and out of reach of children, and the packaging is burned. Farmers need to be given counseling and training on the correct SOPs, starting from preparation to handling spray equipment and waste.
In-Vitro Antifungal Test of Methanol Extract of Butterfly Pea (Clitoria ternatea L.) Seeds Against Colletotrichum sp. the incitant of anthracnose of Red Chilli Suganda, Tarkus; Amanda, Lauren Thalita; Maharani, Yani
CROPSAVER Vol 6, No 2 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i2.48350

Abstract

Colletotrichum sp. the incitant of anthracnose, is very detrimental disease in chili plants. Anthracnose control relies on synthetic fungicides that can have a negative impact on the environment and human health, so more environmentally friendly control alternatives are needed. The butterfly pea plant (Clitoria ternatea L.) is often used as a traditional medicine because it contains functional compounds that are antifungal and antibacterial. This study aimed to test the antifungal effect of the methanol extract of butterfly pea seeds against Colletotrichum sp. of chili plants. The research was carried out from February to April 2023 at the Phytopathology Laboratory of the Department of Pests and Plant Diseases, Faculty of Agriculture, Universitas Padjadjaran. The research method used was an experimental method with poison food techniques in a Completely Randomized Design consisted of 5 treatments with 5 replications. The treatment concentrations of extract used consisted of 1%, 2%, 3%, control, and fungicide mancozeb 0.2% as a comparison. The results showed that the methanol extract of butterfly pea seeds provided the highest inhibition of colony growth (34%) at a concentration of 3%. Inhibition of conidia production of 28.8% was shown at a concentration of 1% but no inhibition at concentrations of 2% and 3%. Methanol extract from butterfly pea seeds could not inhibit the germination of conidia of the fungus Colletotrichum sp. but the germinated conidia become aborted and fail to develop as miselia. The effectiveness of the methanol extract of butterfly pea seeds is still lower than the mancozeb fungicide.
Co-Authors A.M. Kalay Aep Wawan Irawan Agung Karuniawan Agus Susanto Ai Siti Santriyani Amalia Murnihati Noerrizki Amanda, Lauren Thalita Andang Purnama Andhita Nadhirah Avissa Ayuningdiyas Azhhar Hadyarrahman Bari, Ichsan Nurul Budi Irawan Ceppy Nasahi Danar Dono Danar Dono Danar Dono Debby Ustari Dinda Y Wulandari Dinda Yulindar Wulandari Endah Rismawati Endah Yulia Endah Yulia Endah Yulia Yulia Fahmi, Rahmad Bahaudin Fitri Widiantini Gabbi Andria Dwitia Putri Harlino Nandha Prayudha Helmi Kurniawan Helmi Kurniawan Hersanti - Indah Nita Chrysilla Simarmata Ineu Sulastrini Iwan Setiawan Jabbar, Muhammad Aqshal Azizil Jutti Levita Kaltsum, Rumaisha Thifaaliyah Keliat, Chrisnasari Yanti Khairul Zen Kholifah, Sisca Noor Lindung Tri Puspasari Luciana Djaya, Luciana Martua Suhunan Sianipar Maulana, Ghifari Aditya Murdaningsih H. K. Neneng Sri Widayani Nenet Susniahti Noladhi Wicaksana Noor Istifadah Pini Komalasari Puspa Radityo Putri Putri Ardhya Anindita Rahayu, Aldi Rangga Irawan Prasetyo Reginawanti Hindersah Ridwan Setiamihardja Rika Meliansyah Risma Yuniah Nur’haqi Rizky Ramdhani Rizqullah, Ahmad Fauzan Rohmah, Nanda Dea Nikmatu Sadeli Natasasmita Satriyo Restu Adhi SIska Rasiska, SIska Sofia Kholifatu Wahda Sri Hartati Sudarjat Sudarjat Sudarjat Sudarjat Syarif Hidayat Syarif Hidayat Toto Sunarto Tresna Kusuma Putri Trixie A. Ulimaz Trixie Almira Ulimaz Tualar Simarmata Tualar Simarmata Vergel Concibido Vergel Concibido Vergel Concibido Vergel Concibido Vira Kusuma Dewi Virda Aziza Virda Aziza Wahyu Daradjat Natawigena Wahyu Daradjat Natawigena, Wahyu Daradjat Wawan Kurniawan Yadi Supriyadi Yani Maharani, Yani Yulia, Endah Yulia Yunira, Alma Yusup Hidayat Yusup Hidayat