The present invention is related to the use of compositions comprising an enzymatic hydrolysate of animal cartilage protein, at least one organic acid from an alcoholic fermentation, and water, as attractant for flies of the species Drosophila suzukii. Preferably, the animal cartilage is bovine and/or porcine cartilage and the organic acid from an alcoholic fermentation is wine vinegar, apple cider vinegar, white vinegar or rice vinegar.
