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All Journal Agrikultura Cropsaver : Journal of Plant Protection AGROLAND: The Agricultural Sciences Journal Jurnal Biodjati Jurnal Pena Karakter : Jurnal Pendidikan Anak dan Karakter Jurnal ABDINUS : Jurnal Pengabdian Nusantara Sains dan Matematika Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat
Sudarjat Sudarjat
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Mathematics Physics

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Journal : Cropsaver : Journal of Plant Protection

 1 
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.
The Effectiveness of Azadirachta indica A. Juss. and Barringtonia Asiatica L. Kurz. Seed Extract to Controlling Macrosiphoniella sanborni (Hemiptera : aphididae) on Chrysanthemum Morifolium Var. Jayanti Masturina, Safirah Amalia; Sudarjat, Sudarjat; Nasahi, Ceppy
CROPSAVER Vol 5, No 2 (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.v5i2.39751

Abstract

Macrosiphoniella sanborni is a main concern in the production of ornamental chrysanthemum plants. Farmers commonly use chemical treatment to control aphids, but this can harmful the environment and humans. Therefore, alternative environmentally control is needed, one of which is by using botanical pesticides such as Azadirachta indica and Barringtonia asiatica. This research aimed to test the effectiveness of the neem and bitung seed extract against M. sanborni pests on chrysanthemum plants. This research was conducted at the Chrysanthemum cultivation Mr. Syarif’s screen house in Karyawangi village, Parongpong district, West Java, which began in January 2021 to May 2021. This research used an experimental method using a Randomized Complete Block Design (RCBD) which each experiment consisted of 10 treatments and each treatment was repeated 3 times. The tested treatments are neem and bitung seed extract in different concentration, and controls. The results of this study revealed that the effective treatment of M. sanborni on chrysanthemum is the extract of bitung seed at the concentration of 2%. Bitung seed extract pesticides can be used as an alternative synthetic pesticide to control population of M. sanborni.
Effectiveness of seed oil formulations of Azadirachta indica (A.) Juss and Barringtonia asiatica (L.) Kurz in controlling aphids (Aphis gossypii glover) on Strawberry (Fragaria x ananassa duch) plants Sudarjat, Sudarjat; Djaya, Luciana; Muhammad, Ardhi
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.v6i2.51238

Abstract

Strawberry production is often decreased by plant pest infestation in the field. One of the major pests is Aphis gossypii. Strawberry farmers typically use synthetic chemical pesticides to control aphid, however, this can pose serious environmental and human health problems if done continuously. The use of synthetic chemical pesticides can be minimized by using botanical pesticides, as they are safer for human health and the environment. Botanical pesticides that can be used include neem seed extract (Azadirachta indica) and sea poison tree (Barringtonia asiatica). The objective of this research was to test the effectiveness of neem and sea poison tree seed oil formulations against A. gossypii on strawberry plants. The experiment was conducted at CV Bumi Agro Technology, Lembang, from April 2023 to August 2023, arranged in the randomized complete block design consisting of 7 treatments with 4 replications. The treatments were application of neem and sea poison tree seed oil at different concentrations, as follow: (A) Control, (B) Abamectin 0.15%, (C) Neem Oil 2%, (D) Neem seed oil 50 EC 2%, (E) Neem seed oil 50 EC 1%, (F) Sea poison tree seed oil 30 SC 2%, and (G) Sea poison tree seed oil 30 SC 1%. The results showed that neem and sea poison tree seed oil formulations at the concentration of 2% were effective in controlling A. gossypii on strawberry plants.
Identification of Invasive Aliens Plant Species in Cultivated Area of Kamojang Crater at Ibun District, Bandung Regency, West Java Rasiska, Siska; Asdak, Chay; Parikesit, Parikesit; Sudarjat, Sudarjat; Gunawan, Budhi; Setiawan, Iwan; Setiawan, Ditriz
CROPSAVER Vol 6, No 1 (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.v6i1.45383

Abstract

The Cultivated Area in Kamojang Crater, Ibun District, Bandung Regency is part of a single landscape mountain, adjacent to conservated and protected areas which has high biodiversity. This study aims to identify invasive alien plants species in cultivated areas, adjacent to conservation and protected areas. The method used is a descriptive qualitative study with the sampling line transect in 500 meter radius of four location, namely near Nature Reserves (NR), near Nature Tourism Parks (NTP), agriculture (A) and near Protected Forests (PF), and this study has done up at July until November, 2022. The results showed that in the cultivated area in Kamojang Crater, Ibun District, Bandung Regency found 41 families and 96 species of understorey, with the highest number being from the Asteraceae, Poaceae and Fabaceae. Diversity of understorey was categorized as high (H'=3.428), evenly distributed (E=0.738), high species richness (R=13.503) and no dominant species (C=0.165). Several understorey, namely 8 orders, 10 families, and 29 species were categorized as invasive aliens plant species, with the highest important values index being Ageratina riparia (99,642%), Imperata cylindrica (72,919%), Paspalum notatum (31,155%), Chromolaena odonata (31,074%), Etlingera elatior (27,905%), Ageratum conyzoides (20,179%), Lantana camara (19,029%), Amaranthus hybridus (18,818%), Pennisetum purpureum (15,120%), Mimosa pudica (15,031%), Crassocephalum crepidioides (14,037%), and Axonopus compresus (10,671%).
An Analysis of the Impact of Famers’ Practices on Pesticide Residue Levels in Chili Pepper Commodities in West Java Rusydan, Muhammad Ardillah; Dono, Danar; Sudarjat, Sudarjat
CROPSAVER - Journal of Plant Protection Vol 8, No 2 (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.v8i2.68685

Abstract

Chili plants are highly susceptible to infestations by various Plant Pest Organisms (OPT) such as fruit flies, thrips, leaf-eating caterpillars, and fruit borers, as well as diseases like anthracnose, root rot, and leaf spot. To manage these threats, most farmers still rely on synthetic chemical pesticides. Improper pesticide application—particularly in terms of dosage and frequency—can lead to pesticide residues on harvested crops and pose risks to both the environment and human health. This study aims to analyze farmers' behavior in pesticide use and to measure pesticide residue levels in chili samples collected from three major production centers in West Java: Arjasari, Lembang, and Garut. A mixed-method approach combining qualitative interviews and quantitative High-Performance Liquid Chromatography (HPLC) analysis was used to evaluate six active pesticide ingredients. The results showed that most farmers applied pesticides beyond the recommended dosage and frequency. Residues of chlorothalonil and broflanilide were detected in the samples, with concentrations exceeding the Maximum Residue Limits (MRLs). These findings highlight the urgent need for education and stricter oversight regarding pesticide application practices among farmers.
Diversity of Bird in Cultivated Area Kamojang Crater, Laksana Tourism Village, Ibun-Bandung Rasiska, Siska; Asdak, Chay; Parikesit, Parikesit; Sudarjat, Sudarjat; Gunawan, Budhi; Setiawan, Iwan
CROPSAVER - Journal of Plant Protection Vol 8, No 2 (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.v8i2.67181

Abstract

The birds have an important role in the cultivated areas Kamojang Crater, Cikaro subwatershed, Laksana Tourism Village, Ibun - Bandung District. The study aims to explore the diversity of birds and classified them in guild groups. The census method was carried out in June-November 2022, with a sample point count technique with a radius of 50 meters and a distance between the center point of at least 200 meters, observed in the morning (06.00-10.00 am) and afternoon (14.00-16.00 pm) at each point for 10 minutes. Located in cultivated areas were near  the nature reserve (NR), nature tourist park (NTP),protected forest (PF), and agricultural land (AL). The results showed that the birds are found 270 individu , 21 species, 7 ordo, dan 18 family. In general, the diversity of bird species in the Kamojang Crater cultivated area tends to be moderate (2,53), with a high abundance (4,09), birds species are equal in each location (0.80) and none dominate (0,11). The birds have higher Important Value Index in NR, NTP is Prinia familiaris (73,16 dan 53,58), in PF Lonchura leucogastroides (47,63), and AL is Apus Affinis (79,87). Birds found in cultivated areas near NR, NTP and AL are dominated by insectivore birds, while in the cultivated area near PF are predominated by granivore birds. According to the Similarity Index, bird communities in cultivated areas near NR have strong similarities with birds communities near NTP (62.5%, 76.92%, 29.71% and 63.06%).
Effectiveness of Tamarind (Tamarindus indica L.) Leaf Water Extract Against Root-Knot Disease (Meloidogyne spp.) on Tomato Plants Sunarto, Toto; Sudarjat, Sudarjat; Irwan, Aep Wawan; Fatonah, Siti
CROPSAVER - Journal of Plant Protection Vol 8, No 2 (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.v8i2.68786

Abstract

Root-knot disease is a major disease that attacks tomato plants. This disease is caused by the Root-knot nematode (Meloidogyne spp.), which can lead to significant losses in tomato crops. Farmers commonly use synthetic nematicides to control these nematodes, but excessive use of chemical agents can have negative effects. Tamarind leaf is a potential alternative that can be used as a botanical nematicide to control the nematodes that cause root-knot disease in tomato plants because it contains various secondary metabolite compounds, such as flavonoids. This research was conducted to determine the effectiveness of various concentrations of tamarind leaf aqueous extract in controlling Meloidogyne spp. nematodes. The experiment was carried out from May to July 2025 in the Plant Nematology Laboratory Division and Greenhouse of the Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran. The experiment used a Randomized Block Design (RBD) with seven treatments and four replications, consisting of a control, tamarind leaf aqueous extract at 2%, 4%, 6%, 8%, 10%, and carbofuran at 2g/tanamn. The results showed that the application of Tamarindus indica leaf water extract was effective in suppressing root-knot disease (Meloidogyne spp.) in tomato plants. T. indica leaf water extract at a concentration of 6% can suppress the number of galls on tomato plant roots by up to 64.91% and can suppress the number of second juvenile (J2) Meloidogyne spp. in 100 ml of soil by up to 71.18%.
Co-Authors Adhy Putri Rilianti Aep Wawan Irwan Agung Triantoro Riyanto Agus Dana Permana Agus Susanto ANNE NURAINI Apong Sandrawati Argo Utomo Asyiva, Shabriena Almeira Ceppy Nasahi Chay Asdak Danar Dono Dewi Rengganis Elga Sari Endah Yulia Endah Yulia Yulia Ernah Ernah Erni Suminar Fitri Widiantini Gunawan, Aries Gunawan, Budhi Hersanti - Ida Nurhelawati Iwan Setiawan Lindung Tri Puspasari Luciana Djaya, Luciana Masturina, Safirah Amalia Melania Fadillah Meliyansyah, Rika Muhammad, Ardhi Nurazizah, Rahmalia Parikesit Parikesit Qonit, Muhammad Abdilah Hasan Rika Meliansyah Rusydan, Muhammad Ardillah Salbiah Salbiah, Salbiah Septria, Dina Setiawan, Ditriz SIska Rasiska, SIska Siti Fatonah Sri Hartati SYARIFUL MUBAROK Tarkus Suganda Tohidin Tohidin, Tohidin Toto Sunarto Utari, Astarina Widayani, Neneng Sri Wiwik Handayani Yani Maharani, Yani Yudistira, Dwi Harya Yusup Hidayat Zahra, Maghfira Az Zahra, Zakiah