<![CDATA[It is necessary to carry out replanting activities to increase the production and productivity of oil palm plants. Rejuvenation of oil palm plantations can be done through an inserting system and totally rejuvenation system. The population propagation of horn beetles growed faster in oil palm plantations with inserting rejuvenation system than in totally rejuvenation system. This study aimed to obtain an accurate information on the population of horn beetles in oil palm plantations. The research has been conducted on July-August 2020 in Talang Bukit Village as an inserting system area Talang Datar Village as a totally rejuvenation area, Bahar Utara District, Muaro Jambi Regency, Jambi Province. An unformated trial was carried out as an experimental design and the location determination was purposively chosen for there were plants under study and showed a uniform condition at that location. the sampling locations based on oil palm plantation rejuvenation systems, namely: (1) inserting rejuvenation system, and (2) totally rejuvenation system. There were 15 / Ha population at oil palm plantation with inserting rejuvenation system, while there were 3 horn beetles/Ha in totally rejuvenation system. The percentage of horn beetle attacking was 22,22 in inserting rejuvenation system while it was only 3.70%. in the totally rejuvenation system.Key words: population, horn beetle, rejuvenation, oil palm]]>
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