143 Jurnal Citra Widya Edukasi Vol 12 No 2 Agustus 2020 p-ISSN 2086-0412 e-ISSN 2686-6307 Copyright  2019 Uji Efektivitas Metarhizium Anisopliae sebagai Pengendali Larva Oryctes Rhinoceros di Perkebunan Kelapa Sawit Toto Suryanto Program Studi Budidaya Perkebunan Kelapa Sawit Politeknik Kelapa Sawit Citra Widya Edukasi – Bekasi Email : suryantototo@ymail.com Abstrak Oryctes rhinoceros atau kumbang tanduk merupakan salah satu hama penting tanaman kelapa sawit. Hama ini dapat menimbulkan kerugian yang sangat serius bagi produksi kelapa sawit, sehingga perlu dilakukan pengendalian yang tepat agar serangan hama dapat ditekan. Penelitian ini bertujuan untuk mengetahui konsentrasi Metarhizium anisopliae yang paling efektif dalam mengendalikan larva Oryctes rhinoceros dan mengetahui perbedaan kondisi larva Oryctes rhinoceros yang diinfeksi dengan yang tidak diinfeksi Metarhizium anisopliae. Penelitian dilaksanakan di Afdeling Charlie, Estate Berlian 1, PT Palmina Utama yang terletak di Desa Cinta Puri Darussalam, Kecamatan Banjar, Kabupaten Banjarmasin, Kalimantan Selatan dari 3-30 Mei 2018. Percobaan ini menggunakan metode deskriptif. Terdapat 4 perlakuan yang diuji yaitu: kontrol (A0), 1 gr Metarhizium anisopliae / l air (A1), 2 gr Metarhizium anisopliae / l air (A2), 3 gr Metarhizium anisopliae / l air (A3). Setiap perlakuan diulang sebanyak dua kali sehingga terdapat 8 satuan percobaan. Hasil penelitian menunjukkan bahwa tingkat kematian larva Orytes rhinoceros tertinggi terdapat pada perlakuan 3 gr Metarhizium anisopliae / l air (A3) sebanyak 47,50%. Larva Oryctes rhinoceros yang diinfeksi Metarhizium anisopliae menunjukkan kondisi yang berbeda dengan larva Orytes rhinoceros yang tidak diinfeksi Metarhizium anisopliae. Kata Kunci: Hama, Kumbang tanduk, Pengendalian hayati. Abstract Oryctes rhinoceros or horn beetle is one of the important pests of oil palm plants. These pests can cause very serious losses for palm oil production, so that proper control is needed so that pest attacks can be suppressed. This research aims to determine the concentration of Metarhizium anisopliae which is the most effective in controlling Oryctes rhinoceros larvae and understanding the difference between infected Oryctes rhinoceros and those not infected by Metarhizium anisopliae fungi. This research was conducted at Afdeling Charlie, Estate Berlian 1, PT Palmina Utama in Desa Cinta Puri Darussalam Village, Banjar District, Banjarmasin Regency, South Kalimantan Selatan in 3-30 Mei 2018. The experiment was used a descriptive method with 4 treatments: control (A0), 1 gr Metarhizium anisopliae / l water (A1), 2 gr Metarhizium anisopliae / l water (A2), 3 gr Metarhizium anisopliae / l water (A3). Each treatments were two replications so the total unit of experiments were 8 samples. The result showed that the highest mortality consentration of Oryctes rhinoceros larvae found in the treatment of 3 grams of Metarhizium anisopliae / l water (A3) of 47.50%. Oryctes rhinoceros larvae infected by Metarhizium anisopliae showed different conditions than the larvae of Oryctes rhinoceros which were not infected by Metarhizium anisopliae. Keywords: Pest, Biological control, Horn beetle.