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Grubs And Leeches! Are They As Bad As They Sound?

You just landed a fish and noticed reddish spots near the tail. While removing the hook, you saw small specks around the fish’s mouth.  Bells and whistles sound.  Is my bass lake sick?  How did those slimy critters enter  my pond?  What can I do?

Those small spots are symptoms for a parasite—the yellow grub.  The black creatures are leeches.  Both parasites are organisms that live on or in another species known as the “host”. There are approximately 10 different categories of parasites.  Grubs and leeches are most visible.  Others are internal and found when cleaning fish.  Fish with grubs are safe to eat.  Just trim away the affected area and cook thoroughly.

Chemical treatment of parasites can be expensive.  A very effective management option to control grubs and/or leeches involves stocking redear sunfish.  The redear’s common name is “shell cracker”.  They have hard, movable plates in their throat that allow them to crunch exoskeletons like snails. Snails are hosts for grubs.  By eating snails, redear break the lifecycle of the grub.

Redear may reach 10-inches and provide great fishing action.  If you have observed above conditions in a lake with mature predators, stock 150 adult redear per surface acre.  If you’re stocking a new lake, include 250 fingerlings per acre with bluegill and fathead minnows.—Joshua Flowers

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