Fungicide residual activity

View Larger When applied against dollar spot, the activity of propiconazole (Banner) and thiophanate-methyl (Cleary's 3336) lasted at least twice as long as iprodione (Chipco 26GT) or chlorothalonil (Daconil). It should be noted, however, that iprodione was tested at half of the labeled rate, while all of the other products were tested at the label rate. For this reasons, it's reasonable to assume the iprodione would perform better if tested at the proper rate. Data from Latin, 2006. Plant Disease 90:571-575.

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Turf Diseases