Copper Sulfate

  Copper Sulfate Granular crystals effectively controls many species of both filamentous (mat forming green) and planktonic (single cell blue-green) algae.  Copper Sulfate is also effective against roots growing into sewer lines without harming established shrubs and trees.  Key Features:   Controls smelly, ugly algae in ponds & lakes. Controls root growth in sewer connections. Works for both surface and bottom attached algae. Will not damage well established trees or shrubs. Granular formula.   *HomeandGardenSupply.com always recommends reading the entire product label before use, and following all necessary safety precautions, mixing instructions and proper application methods.