John Wiley & Sons, Ltd.

Neonicotinoid insecticide residues in soil dust and associated parent soil in fields with a history of seed treatment use on crops in Southwestern Ontario

0
Using neonicotinoid insecticides as seed treatments is a common practice in field crop production. Exposure of non‐target organisms to neonicotinoids present in various environmental matrices is debated. Concentrations of neonicotinoid residues were measured in the top 5 cm of soil and overlying soil surface dust before planting in 25 commercial fields with a history of neonicotinoid seed treatment use in southwestern Ontario in 2013 and 2014 using LC‐ESI(+)‐MS/MS. The mean total concentrations were 3.05 and 47.84 in 2013, and 5.59 and 71.17 ng/g in 2014, for parent soil and soil surface dust, respectively. When surface and parent soil residues were compared the mean concentration in surface dust was 15.6 and 12.7 fold higher than in parent soil in 2013 and 2014, respectively. Pooled over years, the surface dust/parent soil ratio was 13.7, with mean concentrations of 4.36 and 59.86 ng/g for parent soil and surface dust, respectively. These results will contribute important knowledge about the role these residues may play in the overall risk assessment currently underway for the source, transport and impact of neonicotinoid insecticide residues in a maize ecosystem. This article is protected by copyright. All rights reserved

Customer comments

No comments were found for Neonicotinoid insecticide residues in soil dust and associated parent soil in fields with a history of seed treatment use on crops in Southwestern Ontario. Be the first to comment!