We had a very successful season as far as the algae with the lake looking fabulous through the spring and early summer! The City of Worcester, in conjunction with the ILWA, worked with ESS Group to monitor cyanobacteria/blue-green algae in the lake all summer. Only one treatment was necessary at the end of July.
Volunteers also took part in training with the Environmental Protection Agency, Department of Environmental Protection, many lake, pond and health professionals to learn about how we can help scientists and researchers track cyanobacteria blooms. Learn more at
We saw the nonnative, invasive weed naiad (najas minor) spread rapidly this summer. Naiad has been in Indian Lake for many years but traditionally has not been our most prominent nonnative invasive species.
In early September, we received numerous calls relative to algae in several coves. This was not algae but duckweed. If you look close, you will see the tiny leaves. It is commonly found in Little Indian and Kiver Pond.
While there is currently no way to eradicate the lake of nonnative, invasive weeds, management is key. Given the significant changes in the naiad growth, the ILWA hired SOLitude Lake Management to survey the main body of Indian Lake in it's entirety so we can incorporate these developments into management plans for next year. There is little doubt the greater clarity has played a role, however, it is important we have a handle on the extent of the growth in order to evaluate options for next year.