Essential oil form clove (Syzygium aromaticum) to control Sclerotium rolfsii in vitro

Essential oils can inhibit growth of several phytopathogenic fungi agricultural concern, such as Sclerotium spp. which causes root and collar rots, hampering the absorption water nutrients. Natural have short persistence in environment low toxicity, comprising compounds safer than conventional agrochemicals. Within context integrated management diseases, essential may benefit health farmers, consumers environment. This study evaluated vitro inhibitory effect clove (Syzygium aromaticum) oil on mycelial rolfsii. The experimental design was completely randomized, with 7 treatments (5 concentrations, 1 negative control, positive control) five replications, unit constituted by a Petri dish. consisted different concentrations (0.0125; 0.025; 0.05; 0.1 0.2%) oil, control (0.0%) fungicide Tiram (1 mL L-1). were merged into synthetic Potato-Dextrose-Agar (PDA) culture medium. plates inoculated pathogen S. rolfsii incubated for seven days at 25 ± 2 °C. We compared through percentage inhibition (PIC) velocity index (IVCM). Increasing concentration significantly reduced paralyzed 0.1% concentration. similar to commercial fungicide.