Not sure if anyone knows this or not, but that old carpet recent can catch all the worms you want,,,,, if just find an area in my yard that first of all hasn't been fertilized, that looks like good earth worm area, dark, cool, semi wet and throw that carpet remnant fiber side down and wet it with a hose,,, a few days later, flip the rug and se your worms,,,, worms eat the fibers and live that cool wet dark place to raise their young,mm worms all summer free! Just not so sure what kinda worms memphis have around these parts,,,, they look like snakes some are so big,,,, great for catfish of brim!!! They lovem. and they are a natural bait.....