Especially active in the spring and autumn, ticks are the main vectors of pathogens responsible for infectious diseases in Europe. In particular, they transmit the bacterium that causes Lyme disease in humans. Bites can occur in woods and forests, but also in gardens. A new participatory research programme in Nancy, entitled TIQUoJARDIN, is seeking to gain a better understanding of the risks associated with garden ticks and the pathogens they carry.