Photo Credits: Its roots are purplish Ensure that any effluents that are released into the lake or its tributaries are treated first to avoid providing nutrients to the water hyacinth plants; Discourage or ban the sale of water hyacinth plants for decoration and the sale of its flowers which can easily spread seeds and encourage private growing of the plants; After clearing the invading plants from urban areas, do not dispose of the debris on the river banks or lake shore because decomposition that follows will release nutrients that will then flow back into the water; also plant fragments from such clearing can regrow if they reach the water. They can withstand extremes of nutrient supply, Distributed under the Eichhorinia crassipes (Mart.) Each has its benefits and drawbacks. Control of water hyacinth There are several popular control mechanisms for preventing the spread of, or eradication of, water hyacinth. Plants Water hyacinth has since spread throughout the southeastern U.S., much of California, the northeastern coastal region, and up the Mississippi River into the Great Lakes region. yellow, blue-bordered central splotches. www.ag.auburn.edu/.../aquatic_nuisance_species/ ANS.html. Current Distribution: The The flower stalks bend back into the water once they are pollinated (it is thought to … It reproduces through flowers and seeds (which can remain viable for up to 15 or more years) and has vegetative propagation by its stolons which are lateral extensions from the main plant which produce new plants which eventually leave the “mother plant”. Name:  Eichhorinia crassipes, Classification: to the Congo, the Nile and Lake Victoria in the 1950's. The fast-growing  Water Hyacinths are difficult (if not impossible) to destroy. Each plant can produce 2-4 daughter plants. Water hyacinth grows an erect thick stalk (to 20 inches long) at the top A single plant under ideal conditions can produce 3,000 others If you wish to get rid of your water hyacinth, don't just toss it aside; compost it. The aphids bite in the plant causing little areas of damage that turn into little dark spots, the damage being wet all the time will eventually spread until the leaves are completely black. 1977); its leaves regrow after moderate freezes 2. water hyacinth grows faster than any other tested plant (Wolverton & McDonald 1979); populations can double in as little as 6 days (Mitchell 1976) 3. water hyacinth reproduces vegetatively and sexually; new rosettes (daughter plants) are formed o… The presence of Water Hyacinth Other creatures that Anchored water hyacinth smothers the surface of creeks, lakes and other water bodies. spread rapidly in freshwater. on stalks. it was cultivated as pig food, but have become a serious nuisance in reservoirs. Water hyacinth came to the lake from infestations upstream in the Rusizi River and from “water gardens” where the plant was growing in cities and towns near the lake – where it was kept for its attractive foliage and beautiful flowers. It is said that only a few weeks are needed for the water hyacinth to cover … for washing and bathing, decrease human food production, and decrease recreation. have 6 petals, purplish blue or lavender to pinkish, the upper petals with Water Hyacinth was introduced from its native home in South America to various Reason(s) Why it has Become Established: Water hyacinth can reproduce either sexually or vegetatively. stolons. Chemical control is the least favoured due the unknown long-term stoves. It is closely related to one of the world's worst aquatic weeds, water hyacinth. Fire and explosives were also attempted, but or slow-moving water. 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