Investigating the Dissipation of Fluopyram and Tebuconazole Residues in/on Pomegranate and Soil

Indiscriminate use of pesticides has resulted in the accumulation of pesticide residues in the primary
agricultural products as well as soil. The studies were conducted to determine the dissipation pattern
of two fungicides by following Good Agricultural Practices (GAP) Fluopyram, a succinate
dehydrogenase inhibitor (SDHI) and tebuconazole, demethylation inhibitor (DMI) were used for the
control of powdery mildew and anthracnose diseases in grape and results indicated that fluopyram
dissipated with a half life of 4.04 and 5.18 days, at recommended and double dose, respectively. For
tebuconazole, the half life values recorded were 4.75 and 5.42 days, respectively. The residues
reached below quantification limit (BQL) on 10th and 15th day, in both the fungicides at recommended
and double the recommended dose, respectively, which suggests a Pre-Harvest Interval (PHI) of 10
days for fluopyram and tebuconazole can be considered when applied at 75g a.i./ha and 150g a.i./ha,
respectively.