This is very strange. All the crops Radopholus similis attacks seem to be sub-tropical and tropical, like banana, avocado, coconut, coffee, sugar cane. In the U.S., it attacks citrus in Florida, but not in California. It makes no sense for it to be present in other states of the U.S. And why would it be present in England and the Netherlands? No bananas grow there except perhaps for a few decorative ones in private greenhouses. Diane Whitehead Canada - where I am sure there are none of these nematodes. ------------------------------------------------------------------------------------------------------ On 17-Jan-10, at 8:42 PM, Fierycloud wrote: Netherlands and England are in the pest area, most tuberous root and rhizome can't ship to Taiwan. In U.S., only the Alaska and California are free from it. In Australia, only the Victoria and Tasmania are free from it.