Avoidance tests with Folsomia candida for the assessment of copper contamination in agricultural soils

► Avoidance cup test using Folsomia candida detects Cu independently of concentration. ► Improved avoidance Petri dish test detects Cu in soil in function of concentration. ► Cu voidance tests had similar EC50 values whether conducted with or without light. ► Combining Cu avoidance test trials in OECD soil reduced the variability of results.