A field spray drift study to determine the downwind effects of isoxaflutole herbicide to nontarget plants.

ABSTRACT: Spray drift buffers are often required on herbicide labels to prevent potential drift effects to nontarget plants. Buffers are typically derived by determining the distance at which predicted exposure from spray drift equals the ecotoxicology threshold for sensitive plant species determined in greenhouse tests. Field studies performed under realistic conditions have demonstrated, however, that this approach is far more conservative than necessary. In 2016, the US Environmental Protection Agency estimated that isoxaflutole (IFT), a herbicide used to control grass and broadleaf weeds, could adversely affect downwind nontarget dicot plants at distances of ≥304 m from the edge of the treated field due to spray drift. This prediction implies that a buffer of at least 304 m is required to protec

SUBMITTER: Moore DRJ 

PROVIDER: S-EPMC9293113 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature