There have also been instances where the nematodes have affected areas within the United States as well. Since 1953, Wisconsin has had to quarantine multiple areas after finding "Ditylenchus destructor" in local potato fields. The pathogen has also been seen in Idaho where it was a major concern initially, as potatoes are a major state crop. Other states that have had "Ditylenchus destructor" issues include Arkansas, California, Hawaii, Indiana, New Jersey, North Carolina, Oregon, South Carolina, Virginia, Washington and West Virginia. Fortunately, the United States has used very stringent control laws to avoid any widespread or major damage similar to that seen in the past.