Analysis of Rhinoceros Beetle Infestation in Immature Plants at PTPN IV

Angga Surya Darma

doi:10.63922/ijevss.v5i03.5293

Angga Surya Darma Institut Teknologi Sawit Indonesia

DOI: https://doi.org/10.63922/ijevss.v5i03.5293

Keywords: Rhinoceros beetle (Oryctes rhinoceros), immature plants (TBM), attack frequency, attack intensity, systematic census

Abstract

Attacks by the rhinoceros beetle (Oryctes rhinoceros) on immature oil palm plants can cause crop damage and reduce productivity. This study aimed to identify the level of pest infestation and compare the effectiveness of three methods: the 6-plot zigzag census, the systematic census, and the plantation SOP sampling technique.The study employed a quantitative descriptive method and was conducted at PTPN IV’s Gunung Bayu Business Unit in Simalungun Regency, North Sumatra, from May to July 2026.The results showed that the plantation SOP sampling technique yielded the highest infestation frequency (28.40%) and intensity (14.20%). In contrast, the systematic census recorded an infestation frequency of 22.98% and an intensity of 9.94%, while the 6-plot zigzag census showed a frequency of 22.15% and an intensity of 9.54%. Although the plantation SOP technique detected higher infestation levels, the systematic census was deemed the most effective method; it provided representative results while being more efficient in terms of sample size, time, and labor compared to the other methods.

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