EFFICACY OF FUNGICIDES ON SELECTED COLLETOTRICHUM ACUTATUM ISOLATES

Colletotrichum acutatum belongs to the polyphagous fungal pathogens in temperate, subtropical and tropical climate. The biggest losses are caused in strawberry production in Central Europe and C. acutatum has become the most important pathogen of safflower in recent years. The efficacy of fungicides with active ingredients (azoxystrobin, captan, mancozeb and thiram) was tested in laboratory test. Six C. acutatum isolates originating from different plant species were used for this test. The different sensitivity of particular pathogen isolates to fungicides with active ingredients was determined. The highest efficacy to the isolates of C. acutatum was detected in fungicide with a. i. thiram and the least efficacy to the growth of mycelium was confirmed in fungicide with a. i. azoxystrobin.