Biological Control of Several Fungi Diseases on Turfgrass

摘要

The use of biocontrol agents becomes, nowadays, more and more important for plant disease management acting as a good alternative to the chemical control. The main objective of the present work was to test the effect of an antagonistic fungus on the control of fungal disease in turfgrass. The experimental work was carried out in nine greens of《Silves Golf》, a golf course at southern Portugal. Different concentrations of a commercial product were compared to each other. To isolate pathogenic fungi, samples were taken from all the places where fungal disease symptoms appeared. Fungi of the genus Rhizoctonia (brown patch) and Lepista (fairy ring) were isolated. According to the severity of disease symptoms, differences were observed between plots where the studied product was sprayed and the plots without application (control). The disease symptoms remained, throughout the experimental study, in all plots, but the severity was always higher in the control. Our results showed that the tested product would be a useful environmental sound approach to control disease of turfgrass in the Algarve region.