TURFCIDE® 400 is powered by PCNB, a multi-site contact fungicide with a unique mode of action that has been used for snow mold control for over 50 years, and for good reason. PCNB is widely recognized as the most effective single active ingredient for control of all three major snow mold pathogens, and dozens of university snow mold field trials prove it. Use Turfcide 400 as the backbone of your snow mold fungicide program to maximize protection from pink and gray snow molds.