Water primrose: Environmental control (e.g shading, altered flow, altered rooting depth, or dredging)
Overall effectiveness category Awaiting assessment
Number of studies: 0
Background information and definitions
Environmental control which includes alterations to shade, water flow speed, rooting depth, and dredging, may provide useful tools for control of water primrose Ludwigia spp., particularly in combination with other treatments.
Promotion of competitive, perennial, native plants can also help reclaim water primrose infested habitats. For example, during attempts from 1996-2001 to control Peruvian primrose-willow Ludwigia peruviana in the Botany Wetlands, Australia, it was found that once the original Peruvian primrose-willow infestations were controlled, facilitation of competitive plants, and mulching with leaf and bark mulch, drastically reduced Peruvian primrose-willow recolonization (Chandrasena et al. 2002).
Chandrasena, N., Pinto, L. & Sim, R. (2002) Reclaiming Botany Wetlands, Sydney through integrated management of Ludwigia peruviana and other weeds. Proceedings of the Thirteenth Australian Weeds Conference, 134-137.