Fig. 19. Observations indicate that regular cultivation provides significant suppression of spring dead spot symptoms. Hollow-tine aerification was performed on the soccer field on the left three times during the previous year, whereas the recreational area on the right was not cultivated. All other management practices (mowing, fertilization, irrigation) were identical across the two areas.
Image from Plant Health Progress article:
Spring Dead Spot of Bermudagrass: A Challenge for Researchers and Turfgrass Managers