The present invention relates to the use of a pesticidal mixtures comprising as active components tioxazafen for protecting plants, the plant propagation material thereof, or soil or water, in which the plants are growing, against the attack or infestation by invertebrate pests and/or phytopathogenic harmful fungi. Furthermore, the present invention relates to a seed treatment composition comprising at least one of the pesticidal mixtures and to seeds comprising at least one of the pesticidal mixtures or the seed treatment composition thereof. Moreover, the present invention relates to a method for controlling invertebrate pests and/or phytopathogenic harmful fungi on plants comprising contacting the plant or the plant propagation material; the pest or its food supply, habitat or breeding ground; and/or the fungi or their habitat, with an effective amount of the pesticidal mixtures or the seed treatment compositions thereof.
