Understanding when turf pathogens are active allows turf managers to anticipate disease outbreaks and schedule fungicide applications at the most appropriate times. This publication provides estimates of when important turf pathogens are active in the lower Midwest.

This publication will help turf managers know what to look for when they diagnose infectious turf diseases on the course and in the field. Readers will understand the components of the disease triangle (host, pathogen, and environment), and then be able to use that concept to develop a systematic approach identifying turf disease.