Bildung und abbau von triadimenol nach anwendung von triadimefon in einer weizenmonokultur

Summary During two vegetation periods, the behaviour of the tria‐dimefon metabolite, triadimenol, in different plant parts of winter wheat and in soil was investigated. The fungicide Bayleton DF (triadimefon + captafol) was applied at the beginning of earing. Different ratios of triadimenol‐A/‐B were found in individual plant parts. Triadimenol‐A predominated in the two uppermost leaves, and triadimenol‐B in the roots and in the soil. No residues of triadimenol were found in grain at harvest time (detection limit 0.01 mg/kg).