Water hyacinth or Jal-kumbhi

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samu42

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Dear Dr. Sangwan,

Nice to read your intetest in bird life. Instead of adding more to the subject, I wish to tell that the weed water hyacinth (Eichhornia crassipes) is not a big problem and can easily be controlled with herbicides, without environmental contamination. It need some concerted efforts and mechanical methods like chaining/dragging are of no great help to check its manifestation. Even if we don't spend large sums on herbicides, there are biocontrol agents like water hyacinth weevil (Neochetina eichhorniae and Neochetina bruchi) which have been successfylly tried in many Indian lakes. A combination of both methods can provide effective control of water hyacinth and allow the best use of water bodies.

Good luck and best wishes
 
Dear Mr. Samunder Singh,
Thanks for enlightening us on the control of this menacing and ominous waterweed -the water hyacinth (Eichhornia crassipes). It has choked not only our small village ponds, it is becoming a problem for many of our important water bodies, including Bird Sanctuaries like Bharatpur and Harike Pattan National Parks.
We will be grateful to you if you could give us some details of the herbicides to be used, their dosage, the cost of per unit of area covered, any ill effects on the water organisms, because if the water organisms are killed, on which the birds feed, it will counterfoil our maneuver.
Please elucidate in some details on the biocontrol agents like water hyacinth weevil (Neochetina eichhorniae and Neochetina bruchi), how they are procured and used. If some cost effective and practical method for its control is found, it will be a boon for us all.
There are some other exotic weeds also, like the Congress Grass and Babool (Prosopis julifera) which are fast eating and replacing our native flora and fauna on which they survive.
Can you suggest something for them also?
With warm and due regards and all good wishes,
Dr. Partap Singh Sangwan
Sangwan Hospital
Uklana Mandi Distt. Hisar Haryana -125 113
Ph. 01693-233077, 233677, 235077, M-9416044077
pssangwan@rediffmail.com
 
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