Parrot’s feather: Suction dredging and diver-assisted suction removal
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Suction dredging consists of the use of high pressure water pumps to remove submerged vegetation. This method removes the plants with their root system and therefore reduces their capacity to regrow. The use of scuba divers allows for high species specificity and a combination of suction dredging and hand weeding has successfully eradicated small populations of other invasive aquatic plants (Hussner et al. 2017), including species of the same genus as parrot’s feather (e.g. Eurasian watermilfoil Myriophyllum spicatum; Boylen et al. 1996). The control of parrot’s feather using water jet ventilation is presented in ‘Removal using water jets’ and the use of manual and mechanical harvesting to control parrot’s feather are respectively discussed in ‘Manual harvesting (hand-weeding)’ and ‘Mechanical harvesting or cutting’. Control via mechanical excavation is discussed under ‘Mechanical excavation’.
Boylen C.W., Eichler L.W., & Sutherland J.W. (1996). Physical control of Eurasian watermilfoil in an oligotrophic lake. Hydrobiologia, 340, 213-218.
Hussner A., Stiers I., Verhofstad M.J.J.M., Bakker E.S., Grutters B.M.C., Haury J., van Valkenburg J.L.C.H., Brundu G., Newman J., Clayton J.S. & Anderson L.W.J. (2017) Management and control methods of invasive alien freshwater aquatic plants: A review. Aquatic Botany, 136, 112-137.