 The study evaluated the effects of carrot seed treatments with acetic acid, grapefruit extract, and volatile compounds of fur and thyme essential oils on the germination, vigor, and health. Acetic acid effectively controlled alternaria SPP. Infection, while biosept active decreased seeds infestation with a alternata at higher concentrations. Essential oils treatments favored growth of some alternaria species in certain cases. This article was authored by Hannah Dorna, Yang Yang Chi, and Dorida Sipinska.