Trebolium castaneum is one of the pests that are often found in rice storage warehouses. Meanwhile, citronella leaves (Cymbopogon nardus) contain compounds consisting of citral, citronella, geraniol, mirsena, nerol, farnesol, methyl, he, ptenol and dipentena. The largest compounds contained in citronella are citronella, which is 35% and graniol, 35-40%. The active ingredients contained in the l…