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Providing evidence to improve practice

Individual study: Response of selected aquatic invasive weeds to flumioxazin and carfentrazone-ethyl

Published source details

Richardson R.J., Roten R., West A., True S. & Gardner A. (2008) Response of selected aquatic invasive weeds to flumioxazin and carfentrazone-ethyl. Journal of Aquatic Plant Management, 46, 154-158


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Parrot’s feather: Use of herbicides - carfentrazone-ethyl Control of Freshwater Invasive Species

A small, replicated, controlled, laboratory study conducted in the USA (Richardson et al. 2008), found that the herbicide carfentrazone-ethyl reduced growth in parrot’s feather Myriophyllum aquaticum. Parrot’s feather plants treated with carfentrazone-ethyl had a lower dry weight (0.55–0.88 g) than untreated plants (1.43 g). Parrot’s feather shoot tips (5–10 cm) were transplanted into 9 cm2 pots. Carfentrazone-ethyl application rate ranged between 56 and 224 g/ha and each herbicide rate was applied to pots with three plants and plants in one pot were left unsprayed. Dates of the studies are not presented.

(Summarised by Ricardo Rocha)

Parrot’s feather: Use of herbicides - other herbicides Control of Freshwater Invasive Species

A small, replicated, controlled, laboratory study conducted in the USA (Richardson et al. 2008), found that the herbicide flumioxazin reduced growth in parrot’s feather Myriophyllum aquaticum. Parrot’s feather plants sprayed with flumioxazin had a lower dry weight (0.29–0.74 g) than unsprayed plants (1.43 g). Parrot’s feather shoot tips (5–10 cm) were transplanted into 9 cm2 pots. Application rate of the herbicide flumioxazin ranged between 34 and 437 g/ha and each herbicide rate was applied to pots with three plants and plants in one pot were left unsprayed. Dates of the studies are not presented.

(Summarised by Ricardo Rocha)