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This trap for codlin grubs are two, three, or more thin pieces of board that are twelve to twenty inches long and two to four inches wide with a screw through the center. Slips of wood are inserted between the board to keep them open so the grubs can enter. This was invented in the United States.

Apple or Codlin Grub Trap

This trap for codlin grubs are two, three, or more thin pieces of board that are twelve to twenty inches…