Check mulch piles for jumping worms as these persistent pests have now comfortably established themselves in gardens and yards across Illinois. The worms are an invasive species that have been reported in 40 Illinois counties, said Chris Evans, a scientist with the University of Illinois Extension.
Anyone getting mulch from a community mulch pile should cover it with black plastic and let the sun bake it for two or three days before they use it in their yard, Evans advises. He suggests that having worms in the soil does not mean the garden is dead.
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