Abstract
The Rhinoceros beetle (Oryctes rhinoceros) is the main pest that causes severe impacts on palm oil plantations. The technology for controlling O. rhinoceros is more focused on utilizing the biological agent Metarhizium anisopliae, which is added to the compost called Metankos. The study aimed to obtain the best dose of local M. anisopliae biopesticide flour formulation on Metankos on mortality of O. rhinoceros larvae. The study was conducted experimentally using a completely randomized design consisting of eight treatments with four replications to obtain 32 experimental units. Each experimental unit consisted of 10 larvae of O. rhinoceros instar II. The treatments used several doses of M. anisopliae flour formulation with doses of 0, 30, 60, 90, 120, 150, 180, and 210 g/5 kg compost/bucket. The result showed that a 60 g/5 kg compost/bucket of the best compost mixed with a formulation of M. anisopliae flour induced a 52.5% mortality rate for O. rhinoceros larvae.
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