Triadimenol in turfgrass lysimeter leachates after fall application of triadimefon and overwintering

An earlier study showed that fall application of the fungicide, triadimefon to sandy turfgrass lysimeter plots resulted in rapid appearance of the metabolite, triadimenol in collected leachates but only occasional presence of the parent fungicide. In the present study, it was shown that, if after such fall applications, leachates are collected and analyzed through the following winter and spring, residues of the metabolite, triadimenol, are detectable as late as early June. Factors influencing these results are discussed.