Tiafenacil is a new protoporphyrinogen IX oxidase (PPO)-inhibiting herbicide, with IC50 values of 22 to 28 nM for various plant species, including amaranth (Amaranthus tuberculatus), soybean (Glycine max), arabidopsis (Arabidopsis thaliana), and rapeseed (Brassica napus).In Vitro: Tiafenacil has low oral and dermal acute toxicity.
In velvetleaf, Tiafenacil causes severe growth inhibition at 1 μM and results in desiccation and death at 5 μM.