Kanke Dam was developed by the British. The work of the construction was completed in 1954. Kanke Dam is famous for bathing, boating, fishing, and supplying water for drinking purposes to thousands of people in Ranchi, the capital city of Jharkhand.
Today, a vast area of Kanke Dam is packed up by water hyacinth. It has covered its water in several places making it become poisonous. Hyacinth bulbs pack a hidden punch with calcium oxalate crystals and a toxic alkaloid, lycorine.
These substances are no joke—they can cause real harm if ingested or if they come into contact with skin or mucous membranes. Water hyacinth has a variety of negative impacts once introduced into a freshwater environment. it forms dense, impenetrable mats which clog waterways, making boating, fishing, and almost all other water activities, impossible.
It also reduces biodiversity by crowding out native plants at the water's surface. Water hyacinth can completely cover lakes and wetlands, outcompeting native aquatic species, reducing oxygen levels for fish, and creating an ideal habitat for disease-carrying mosquitoes.
Large infestations of water hyacinth can prevent river transport, and fishing, damage bridges, and clog dams. Experts say hyacinths grow mainly because water is not cleaned.
To eradicate or control water hyacinth, physical, chemical, and biological methods are widely applied throughout the world.
The physical method is employed by directly harvesting, cutting, and removing the plant using machines or manual removing by hands and hand tools.
Chemicals (herbicides and pesticides), either conventional or nonconventional can be applied directly or indirectly on the infested areas to eradicate or reduce the growth of the weed. Biological methods involve applying arthropods and pathogens to the infested areas.
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