Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants grass carp getting eaten

Concerning grass carp I find the PREFERENCE and the EFFECTIVENESS ratings in the MSU (Mississippi State University)C A R E S (Coordinated Access to the Research and Extension System)very accurate. Milfoil is listed as moderate and moderate.GC for example are commonly stocked for Duckweed control and the Preference is HIGH but the Effectiveness is LOW, see plants listed by common name and scientific name on Information Sheet IS1556 http://msucares.com/pubs/infosheets/is1556.htm