"This project attempts to investigate the degree of synergy between antioxidant bioactive substances and conventional biocides in order to develop more environmentally-friendly pesticide products. The aim is to use natural extracts from plant sources with the potential to be used as biocide adjuvants for the chemical sector. The study will focus on the inclusion of adjuvants of an antioxidant nature of synthetic and natural origin in commercially-available formulations of domestic insecticidal and/or fungicidal products, and industrial pesticide products. Natural adjuvants will be those deriving from plant, fruit and vegetable residues such as pine bark and grape seeds and from medicinal plant extracts. The inclusion of these adjuvants will enable the percentage of customarily-used biocide to be reduced in formulations so as to thus obtain pest-control substances of a more environmentally-friendly nature. The two areas of application will be against urban pest insects and for wood preservation against xylophagous insects and fungi. The main objective of this project involves studying the synergism between antioxidant bioactive molecules of different types and synthetic biocides included within the new European Biocide Directive 98/8/CE (BPD), for the development of new pesticide products whose performance features may clearly help to distinguish them from other products available on the market. Using this strategy, the aim is for the resulting anti-pest product to be competitive both economically and effectively with regard to those existing on the market whose biocidal characteristics are unquestionable, albeit problematical due to their high level of toxicity."