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Water Hyacinth Growing at a Faster Rate than Manual Harvesting
The non-native invasive alien species is growing faster than it is being cleared, local reports say.
Workers mainly used ropes to section off the water hyacinth into small clusters and then attempted to pull them ashore before taking them to local garbage dumps.
The manual method cost nearly VND700,000 ($33) per tonne, but the use of cutting machines, done the first time, cost just VND220,000 ($10) per tonne.
Just one month later, the immensely thick water hyacinth has blocked the flow of water and caused difficulties for waterway transport.
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