Prawira, Fajar (2024) EKSPLORASI ISOLAT LOKAL CENDAWAN Metarhizium spp DAN PENGUJIAN VIRULENSI PADA LARVA KUMBANG TANDUK (Oryctes rhinoceros) PADA TANAMAN KELAPA SAWIT. S1 thesis, Universitas Malikussaleh.

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Abstract

Oil palm is a plantation crop that is used to produce vegetable oil. The Oryctes rhinoceros pest is a pest that has a high level of damage. The research aims to explore local isolats of the Metarhizium fungus and test the level of virulence in horn beetle larvae (Oryctes rhinoceros). Virulence testing was carried out in the pest and disease laboratory with treatment types using a Completely Randomized Design (CRD). Research treatments were taken from several locations which received a total of 9 local isolats. Each local isolat treatment was repeated 3 times so that there were 27 experimental units. Virulence testing on 9 local isolats taken from 2 districts and 3 sub-districts showed that isolats from North Aceh District had a high level of virulence, namely isolat_1 Cot Girek with a mortality of 100%, isolat_2 Cot Girek 100% and isolat_3 Cot Girek with a mortality of 93.33. %. Meanwhile, low virulence was found in Bireuen Regency, Juli District, namely: isolat_1 July with a mortality of 66.66%, isolat_2 July 73.33% and isolat_3 July 66.66%. The fastest lethal time (LT50) required to reduce 50% of the Oryctes rhinoceros population was 8 days for the Cot Girek_1 isolat. The highest conidia density was found in the Cot Girek_1 isolat with a conidia density of 105.6×106.

Item Type:	Thesis (S1)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian > 54211 - Jurusan Agroekoteknologi
Depositing User:	Fajar Prawira
Date Deposited:	21 Nov 2024 08:10
Last Modified:	21 Nov 2024 08:10
URI:	https://rama.unimal.ac.id/id/eprint/7753

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