Study

Comparison of daytime and night-time applications of diquat and carfentrazone-ethyl for control of parrotfeather and Eurasian watermilfoil

  • Published source details Wersal R.M., Madsen J., Massey J., Robles W. & Cheshier J. (2010) Comparison of daytime and night-time applications of diquat and carfentrazone-ethyl for control of parrotfeather and Eurasian watermilfoil. Journal of Aquatic Management, 48, 56-58

Actions

This study is summarised as evidence for the following.

Action Category

Parrot’s feather: Use of herbicides - diquat

Action Link
Control of Freshwater Invasive Species

Parrot’s feather: Use of herbicides - carfentrazone-ethyl

Action Link
Control of Freshwater Invasive Species
  1. Parrot’s feather: Use of herbicides - diquat

    A small, replicated, randomized, controlled, laboratory study conducted in 2006 in the USA (Wersal et al. 2010), found that the application of the herbicide diquat reduced growth of parrot’s feather Myriophyllum aquaticum. After four weeks, the dry weight of parrot’s feather plants treated with diquat was lower than untreated plants (1–3 vs 6 g/pot). Daytime and night-time application of the herbicide resulted in similar results. Parrot’s feather shoots were propagated in 3.78 l pots and placed inside 246 l containers filled with water. Each herbicide rate (0.19 and 0.37 mg/l) was applied to three plants.

    (Summarised by: Ricardo Rocha)

  2. Parrot’s feather: Use of herbicides - carfentrazone-ethyl

    A small, replicated, randomized, controlled, laboratory study conducted in 2006 in the USA (Wersal et al. 2010), found that the application of the herbicide carfentrazone-ethyl reduced growth in parrot’s feather Myriophyllum aquaticum. After four weeks, the dry weight of parrot’s feather plants treated with carfentrazone-ethyl was lower than untreated plants (1–2.1 vs 4.6 g/pot). Daytime and night-time application of the herbicide resulted in similar results. Parrot’s feather shoots were propagated in 3.78 l pots and placed inside 246 l containers filled with water. Each herbicide rate (0.1 and 0.2 mg/l) was applied to three plants.

    (Summarised by: Ricardo Rocha)

Output references

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