Dissipation pattern of tetraniliprole in/on green chilies

Abstract

Field and lab experiments explored tetraniliprole dissipation in chili plants. A supervised trial in Devarayapuram village, Coimbatore, assessed the CO₂ chili variety (December–March 2018–2019). Using the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method and ultra-high-performance liquid chromatography (UHPLC), samples were collected up to 15 d post-application. Initial tetraniliprole deposits on chili fruits, 1-h post-spray, were 0.898 and 1.271 μg g⁻¹ at single and double doses. Over 80% dissipated within 5 d, reaching below detection limits by day 7 and 10 for single and double doses, respectively. Transformation analysis favored first-order kinetics. Tetraniliprole half-life on chili fruit was 1.49 and 1.53 d at recommended and double doses. The safe waiting period was 4.16 and 5.04 d for 60 and 120 g a.i ha⁻¹. This study provides insights into tetraniliprole dynamics in chili plants, crucial for effective pesticide management.

Keywords:

• Chili pesticide residue
• dissipation
• QuEChERS
• UHPLC analysis
• tetraniliprole

Disclosure statement

The authors declare no competing interests.

Data availability statement

All relevant data supporting the findings of this study are included within this manuscript. The datasets generated and analyzed during this study, including raw measurements, statistical analyses, and any supplementary information, are available from the corresponding author upon reasonable request. For inquiries or requests regarding the dataset, please contact Vinothkumar Bojan at [email protected]