S-Carvone Formulation Based on Granules of Organoclay to Modulate Its Losses and Phytotoxicity in Soil

Based on the effects that allelochemicals can exert over organisms, their use as alternatives to synthetic pesticides has been proposed. To this aim, it is important understand behavior in soils readily dissipate by different routes. In work, novel granules based commercial organoclay Cloisite® 10A were prepared a new strategy for possible application of S-carvone bioherbicide, overcoming its rapid dissipation environment. Batch release, degradation, mobility, and phytotoxicity tests soil performed. Until now, organoclay-based formulations not studied. The release water from occurred slowly. There no differences persistence allelochemical after free compound (readily available form) or supported granules. However, granulated formulation reduced delayed leaching S-carvone, thus controlling downward movement columns, compared S-carvone. Bioassays revealed germination aerial biomass Lactuca sativa L. greater extent than compound. Our results demonstrated 10A, could be used control transport losses, such volatilization, increasing bioefficacy allelochemical. These findings inspire further investigations preparation monoterpenes potential bioherbicides.