Uptake and translocation of imidacloprid, clothianidin and flupyradifurone in seed-treated soybeans

摘要

BACKGROUND: Seed treatment insecticides have become a popular management option for early-season insect control. This study investigated the total uptake and translocation of seed-applied [C-14]limidacloprid, [C-14]clothianidin and [C-14]flupyradifurone into different plant parts in three soybean vegetative stages (VC, V1 and V2). The effects of soil moisture stress on insecticide uptake and translocation were also assessed among treatments. We hypothesized that (1) uptake and translocation would be different among the insecticides owing to differences in water solubility, and (2) moisture stress would increase insecticide uptake and translocation.