Though acquatic weeds such as water hyacinth play a vital role in the acquatic ecosystem, congestion of the weeds in wetlands could hamper the general productivity of the ecosystem.

Water hyacinth growing in the lakes absorbs the nutrients (phosphorous, nitrogen) being released to the lake water from untreated sewage discharged in the lake, for their growth and reduces the nutrient concentration in the lake water. After a period of time these plants sink to the bottom of lakebed and decay affecting water quality.

ban weed killer: An environmental group in Argentina has petitioned the country

Even as the Madras Engineer Group (MEG) began its search for the body of six-year-old Abhishek, a whole lot of people including BBMP and local residents along Hennur Main Road heaved a big sigh of relief on Tuesday.

The reason being Hennur Lake, which is deep with weeds and has turned into a dumpyard would be cleaned finally!

May 24: Scientists have urged people not to eat the popular vegetable alligator weed, known locally as Seema thotakura or Seema ponneganti, as it can cause serious health hazards.

Nearly 4.25 million hectares are under threat from the deadly weed parthenium, which, if controlled, can raise India

JORHAT, May 17: The Department of Entomology, Assam Agricultural University, Jorhat, is organizing a national-level workshop on biological control of crop pests and weeds on May 29 and 30 at the University. This was informed by Dr A Basit, Principal Scientist, AICRP on bio-control and organizing secretary of the workshop.

K. Lakshmi

It is also being used to store water from Veeranam tank

Seeking Attention: Most parts of the Porur lake have turned green due to the growth of aquatic weeds.

CHENNAI: The Porur Lake, which is used as a storage point for city water supply, presents a pathetic picture with aquatic weeds covering a major portion of the lake bed.

- Volunteers launch a clean-up drive at water body hours before showers

It was double delight for the Dhakuria Lakes on a day that began with a two-hour clean-up drive and ended with the summer

BHUBANESWAR: Climate change will not only have a single manifestation of rapid and unpredictable temperature rise, but also has tremendous impact on agriculture