This lack of understanding is an important aspect of the wart disease problem, because it affects the interaction between home gardeners and the disease. Controlling the Disease Disease control in such complicated process is fraught with difficulties. To help solve the problem, governments have legislated quarantine measures as a first level of control. Consequently, the disease is now subject to stringent quarantine regulation around the world, which prevent the entry of contaminated materials. Because the disease is already established in Newfoundland, quarantine measures are used to prevent the export of contaminated materials.
Soil adhering to vehicles is removed.
Although the focus is on prevention, plants must be protected from the fungus when it is already present in the soil. In an attempt to eradicate wart disease of potato, potato plants are now bred for resistance to the disease. This breeding program has been successful around the world. The wart disease problem is compounded by the fact that the fungus has developed numerous strains, known as pathotypes. About 20 occur around the world, including four known in Newfoundland.