Compositions and methods for inhibiting the decomposition of agricultural products are provided. A composition comprises a breathable sachet of cyclodextrin-encapsulated plant essential oils, such as thyme oil. Another composition comprises a mixture of a plant essential oil, protein, wax and glycerine used as a coating on at least one inner surface of a defined space such as a storage, shipping or delivery container or a flower sleeve. A method comprises addition of the composition to a defined space containing, or designed to contain, an agricultural product such as a fruit, vegetable or cut flower.