Check-out some recent before-and-after photos .....
Ottsville pond - before
This private pond had a historic issue with filamentous algae but very little other vegetation. Grass carp were stocked in the Fall. To assist the grass carp, physical removal then chemical control of remaining algae was conducted the following spring. Temporary aeration was provided to help with the decomposition of dying vegetation.
Cottage pond - before
This small pond had issues with excessive filamentous algae and cattails. The algae was addressed using physical removal by seining initially, then stocking grass carp and assisting with occasional chemical control as needed. Cattails were treated with a systemic herbicide (note the browning of cattails in the background in the picture on the left). After a couple of seasons, no additional treatment has been needed.
Physical removal of algae using a modified seine net (left) followed by stocking of
grass carp (right) are key components of our strategy to control filamentous algae.