What ever you do don't spray ...
Published by Ross Chandler, Managing Director
What ever you do don't spray chemicals to kill the water Hyacinth. That will most likely lead to eutrophication of the lake killing the remaining fish stocks and making the water unsuitable for human and animal consumption. Mechanical harvesting is the best option until you have removed the major mass, then you may spray to kill minor infestations. Use the harvested material for compost, dry it and use it for fuel, or convert it to biochar and put that back on the farms. The attached ref: from New South Wales, Australia may help. It shows mechanical harvesters at work. http://www.dpi.nsw.gov.au/__data/assets/pdf_file/0005/505706/water-hyacinth-control-modules-full-accessible.pdf