Abstract: Preparations from aromatic plants that are insecticidal or are insect behaviorally active, are used to control the development of insect populations. Leaves are milled or out drying to a small average particle size. Extracts and vapors may also be used. The resultant preparation, when contacted dry commodities or structures such as books or carpets, grain bins feed/flour mills, equipment, greenhouse or ornamental plants infested storage insects or insect infested perishable produce after harvest will reduce the insect population. In addition, soil may be fumigated the extracts.