Representativeness of Folsomia Candida to Assess Toxicity of a New Generation Insecticide in Different Temperature Scenarios

Climate change may interfere in the behavior of pesticides and organisms, influencing pesticides toxicity to non-target organisms like collembolans. Aiming to assess the representativeness of the standardized species F. candida to the Collembola group under different temperatures, four species of collembolans - Folsomia candida , Folsomia fimetaria, Proisotoma minuta and Sinella curviseta – were exposed to a new generation insecticide of Chlorantraniliprole, under the standardized temperature of 20ºC, and a temperature foreseeing a global warming scenario of 25ºC. Results evidenced that F. candida is the most sensitive species on both temperatures, followed by F. fimetaria and P. minuta . Sinella curviseta was insensitive to the insecticide, regardless of the temperature. The sensitivity of F. candida and P. minuta was significantly higher at 25ºC than at 20ºC, while F. fimetaria and S. curviseta remained equally sensitive/insensitive to both temperatures. Results suggest that F. candida can be representative of F. fimetaria under standard conditions but not for F. fimetaria under 25ºC nor with P. minuta and S. curviseta under both temperatures due to the higher sensitivity of F. candida . On the other hand, due to its higher sensitivity, F. candida can be used to define adequately protective regulation limits for pesticide applications