The present invention relates to an essential oil-based agricultural composition and use of the same for controlling a pest. The essential oil-based agricultural composition comprises: (a) an essential oil component comprising at least one geraniol-based compound selected from the group consisting of geraniol, geraniol carboxylate or a combination thereof, (b) a hydroxyl and/or alkoxy functionalized polysiloxane; (c) a nonionic surfactant comprising at least one selected from a blocked or random polyoxyethylene/polyoxypropylene copolymer and a fatty alcohol alkoxylate; and (d) optionally, water. The essential oil-based agricultural composition has excellent stability and improved droplet adhesion, and can effectively control pests, especially fungal plant pathogen.