Residues and Uptake of Soil-Applied Dinotefuran by Lettuce (Lactuca sativa L.) and Celery (Apium graveolens L.)

Pesticides have been used for decades to protect agricultural products and increase productivity by controlling crop pests. However, the frequent application of pesticides on crops or soil leads accumulation their residues in environment, which will be subsequently absorbed plants finally translocated edible parts. This study aimed investigate uptake soil-applied dinotefuran three major metabolites lettuce celery from previous season’s applications analyze consumable Dinotefuran was at plant back intervals 30 60 days (PBI-30 PBI-60). Residues its 50% 100% mature leaves shoots, after application, planting, maturity were estimated. Half-lives bio-concentration factors calculated. The ranged between 23.8% 28% 51.73% 53.06%, respectively. Respective half-lives (days) applied PBI-30 PBI-60 1.33–1.54 0.91–2.16 0.9–1.47 0.79–1.65 soil. below Korean MRLs most samples. calculated risk assessment parameters indicated that negligible could expected. current recommends growing next harvesting first crop, but not less than days.