Jumping worms have been classified by the Minnesota Department of Natural Resources as an invasive species. These worms have been present in certain Minnesota soils for over 15 years. Jumping worms have been reported in many types of soil including poorly prepared compost. When properly made, compost will kill jumping worms as they cannot survive past 104 degrees. Freezing temperatures will kill off jumping worms; however, any cocoons or eggs deposited in soil that does not freeze, will often survive and begin the next life cycle in the spring.
While all terrestrial earthworms in Minnesota are considered invasive, you won’t see any jumping worms even into June. This is because the new hatch will not have matured by then. As mentioned, the older mature worms do not survive over winter as they only live in the top inches of soil which freezes in our climate’s winter. At this time, there is no known labeled way to control or kill them. Prevention is the only way to limit their spread.