HASIBUAN, GUSTINA DEWI (2025) REPELLENSI DAN TOKSISITAS MINYAK ATSIRI DAUN MENGKUDU (Morinda citrifolia L.) TERHADAP TIGA SPESIES HAMA PASCAPANEN. S1 thesis, universitas malikussaleh.

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Abstract

ABSTRACT Rice weevil Sitophilus oryzae is a primary pest in cereals that attacks grain during storage, while red flour beetle Tribolium castaneum and saw-toothed beetle Oryzaephilus surinamensis are secondary pests in cereal commodities because they attack commodities that have been damaged by primary pests. An alternative environmentally friendly control technology is to use noni leaf essential oil, because it has several active compounds such as flavonoids, and is disliked by insects. This study aims to study the testing and effectiveness of noni leaf essential oil on the repellent power and toxicity of S. oryzae, T. castaneum, and O. surinamensis imago. The concentrations of red betel leaf essential oil tested were 0.25%, 0.5%, 1%, 2%, 4% (v/v) and control. The experiment was repeated three times. The method used was the residue method on filter paper for testing the repellent power and toxicity of betel leaf essential oil. The relationship between the concentration of noni leaf essential oil and the mortality of S. oryzae, T. castaneum, and O. surinamensis imago was determined by probit analysis. Mortality of imago and Repellent at a concentration of 0.25% - 4% reached >50%. The LC50 value of betel leaf essential oil against S. oryzae, T. castaneum, and O. surinamensis at 2-7 days after application ranged from 1.35% - 0.09% , 1.55% - 0.10%, and 1.15%-0.11%. These results indicate that noni leaf essential oil can be used to control S. oryzae, T. castaneum, and O. surinamensis on stored cereal products. Keywords : Essential oil, Oryzaphilus surinamensis, Repellency, Sitophilus oryzae, Toxicity, Tribolium castaneum

Item Type:	Thesis (S1)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian > 54211 - Jurusan Agroekoteknologi
Depositing User:	Gustina Dewi Hasibuan
Date Deposited:	14 Aug 2025 06:58
Last Modified:	14 Aug 2025 06:58
URI:	https://rama.unimal.ac.id/id/eprint/13859

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