I first used Heritage G for fungus issues in my lawn and had satisfactory results. However after 20 days another fungicide treatment was necessary, and for which I used Clearys 3336 DG Lite as an alternate fungicide. It's been almost two weeks since I applied the Clearys fungicide at 3 pounds per 1,000 sq.ft., and it appears to be working well, with some brown patches having recovered to a degree.
Work as advertised. After having 3 days of rain within the first week after application and another 3 days of rain the second week, I had to apply another fungicide brand at the end of the second week because symptoms started showing. Therefore, it works as advertised that it works at a minimum of 2 weeks.