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All Journal ARMADA : Jurnal Penelitian Multidisiplin
Nurliana
Program Studi Proteksi Tanaman Fakultas Sains dan Teknologi Institut Teknologi Sawit Indonesia
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Dominant Pathogens Causing Leaf Spot Disease in Oil Palm Plants That Have Not Yet Produced (TBM) Using A Visual Approach and Control Strategy Recommendations Riki Kurniawan Barus; Junaidi; Nurliana
ARMADA : Jurnal Penelitian Multidisiplin Vol. 4 No. 7 (2026): ARMADA : Jurnal Penelitian Multidisplin, July 2026
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi 45 Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/armada.v4i7.3078

Abstract

Leaf spot disease is a major constraint on immature oil palms because it can inhibit growth. This study aimed to identify leaf spot diseases, determine their incidence and prevalence, and establish the dominant disease affecting three-year-old immature oil palms. A descriptive field survey was conducted on 50 sample plants across Block A and Block B. Data were collected through visual observation of disease symptoms and analysed according to incidence, prevalence, severity, and dominance. The results identified two principal pathogens: Curvularia sp., with an incidence of 24%, and Fusarium sp., with 16%. Overall disease incidence reached 40%, while prevalence in both blocks was 100%. Curvularia sp. was the dominant disease, accounting for 60% of all cases. Although the severity of both diseases remained low, control measures are still required through plantation sanitation, routine monitoring, improved drainage, balanced fertilisation, removal of infected leaves, and appropriate fungicide application when necessary.
Co-Authors Junaidi Riki Kurniawan Barus