Managing resistance to strobilurin fungicides
January 1, 2002
Resistance of anthracnose, gray leaf spot and Pythium to the strobilurin fungicides (Heritage, Compass and Insignia) has recently been documented from several U.S. golf courses. Where resistance occurs, these products are no longer effective for these three diseases. But they are still highly effective tools for control of a wide variety of other turf diseases including summer patch, brown patch, rapid blight and fairy ring. Although it is unclear how widespread the phenomenon of resistance is, implementation of preventive resistance…