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Cropsaver : Journal of Plant Protection
Published by Universitas Padjadjaran
ISSN : -     EISSN : 26215756     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
The objective of the CROPSAVER Journal is to present articles containing interesting and strategic issues. This journal discusses the discussion of articles with discussion rooms in the fields of plant pests and diseases, technology for pest control, taxonomy, insect physiology, biological insects, toxicology of pesticides, settlement pests that help research, research and research.
Arjuna Subject : -
Articles 124 Documents
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Effect Combination Of Nitrogen Fertilizer And Weeding Frequency On The Growth And Harvest Of Chinese Cabbage Tanasale, Vilma Laurien; Goo, Nureny; Patty, Christian W.
CROPSAVER Vol 9, No 1 (2026)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v9i1.70316

Abstract

Productivity of Chinese cabbage (Brassica rapa L.) often declines due to low nitrogen nutrient availability and high competition from weeds in cultivated land. The inappropriate application of nitrogen fertilizer doses can result in suboptimal plant growth, while uncontrolled weeds compete with crops for water, light, nutrients, and growing space. In addition, ineffective weeding frequency may inhibit growth and reduce the yield of Chinese cabbage. Therefore, this study was conducted to analyze the effects of nitrogen fertilizer dosage, weeding frequency, and their interaction on the growth and production of Chinese cabbage as a basis for improving crop cultivation management. The study employed a two-factor Randomized Block Design (RBD) with three replications. The factors consisted of nitrogen fertilizer dosage and weeding frequency treatments. The results showed that nitrogen fertilizer dosage and weeding frequency significantly affected the growth and production of Chinese cabbage. The N2P3 treatment (urea at a dose of 200 kg/ha combined with three weeding applications) produced the best results in suppressing weed growth and increasing Chinese cabbage production.
Exploration of Soil Entomopathogenic Nematodes In Peatland Oil Palm Plantations of Kubu Raya Regency Ayen, Rosalina Yuliana; Hamdani, Hamdani
CROPSAVER Vol 9, No 1 (2026)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v9i1.66958

Abstract

Oil palm plantations are a major agricultural commodity in Kubu Raya Regency, West Kalimantan, and require environmentally friendly technologies to support sustainable management of pest organisms. One potential biological control agent is entomopathogenic nematodes (EPN), which are effective against soil-dwelling insect pests. This study aimed to explore and identify soil entomopathogenic nematodes and their symbiotic bacteria from peatland oil palm plantations in Kubu Raya Regency. Soil samples were collected from several oil palm plantation sites using an exploratory sampling approach. Isolation of EPN was conducted using the baiting method with Tenebrio molitor larvae as insect hosts. The experiment was arranged in a Completely Randomized Design (CRD), and data were analyzed using the Honest Significant Difference (HSD) test at a 5% significance level. The results showed that EPN were present at all sampling locations with varying population densities. The average mortality of T. molitor larvae ranged from 84% to 100%. However, statistical analysis indicated no significant differences in larval mortality among treatments (p > 0.05). In conclusion, peatland soils of oil palm plantations in Kubu Raya Regency harbor entomopathogenic nematodes with potential as biological control agents. The presence of EPN indicates their potential role in supporting sustainable agricultural systems.
Effectiveness of Fobio Biopesticide Concentration Against Stem Rot Disease in Vanilla Plants Winadya, Archamiyanis Putri; Wiyatiningsih, Sri; Mujoko, Tri
CROPSAVER Vol 9, No 1 (2026)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v9i1.67869

Abstract

Fusarium oxysporum is a soil-borne pathogen fungus that causes vanilla stem rot, which reduces vanilla productivity. This study aimed to determine the effectiveness of various concentrations of the biopesticide Fobio  in suppressing vanilla stem rot caused by Fusarium oxysporum. This study was conducted in vivo in Tukum Hamlet, Wonosalam District, Jombang Regency, East Java. This study used a Completely Randomized Design (CRD) with four treatments and five replications consisiting of : 5 ml/L (FA), 7.5 ml/L (FB), 10 ml/L (FC), and Control (K). The results showed that 7.5 ml/L was the best concentration, reducing disease intensity to 12.80%, with a biopesticide effectiveness of 51%.
Inventory of Understorey with Potential as Botanical Insecticide in Cultivated Area the Kamojang Crater, Cikaro River Sub-Watershed Rasiska, Siska; Sudarjat, Sudarjat; Parikesit, Parikesit; Asdak, Chay; Gunawan, Budhi
CROPSAVER Vol 9, No 1 (2026)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v9i1.69927

Abstract

Botanical insecticides are one of the alternatives to control vegetable plant insect pests that are considered effective and efficient. However, in its implementation there are obstacles, including information about understorey that have the potential to be botanical insecticides. This study aims to inventory understorey as botanical insecticides in the cultivation area Kamojang Crater of the Cikaro subwatershed. The method used in this study is exploration by sampling transects with a radius of 500 meters. Each path is determined by 5 observation points, so that 20 observation plots are obtained in the cultivation area near nature reserves (NA), nature tourism parks (NTP), protected forests (PF), and agricultural land (AL). The understorey were found then identified, calculated their density, frequency, dominance, important value index, species diversity, type richness, evenness, and dominance. The results showed that 41 families, 93 species, and 3,355 individuals of understorey were found. A number of families and species of plants have the potential to be botanical insecticides such as Asteraceae, Fabaceae, Euphorbiaceae, Malvaceae, Lamiaceae, and Rutaceae, with the species being Ageratina riparia; Imperata cylindrica; Chromolaena odorata; Etlingera elatior; Centela asiatica;  Lantana camara; Mimosa pudica; Pennisetum purpureum;  Ageratum conyzoides;  Cynodon dactylon;  Galinsoga parviflora;  and Althenantera philoxeroides. The diversity of understorey species with the potential as botanical insecticides is categorized  medium (2.404<H'<2.752), with a high species richness index (5.352<E<6.196), and a high evenness index (0.666<R<0.736), as well as a low dominance index (0.117<C<0.183). and the biopesticides species in cultivated areas near NTP have strong type similarities with AL.

Page 13 of 13 | Total Record : 124

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