The Widely Prevalent projects are updated by regional coordinators around the country. In addition to providing information for plant pathologists and diagnosticians, the lists are used by APHIS-PPQ to develop a list of organisms that are common in each state to help expedite the permitting process for obtaining research isolates. The APHIS-PPQ list will be available on the APHIS website.
A "Widely Prevalent" organism is an organism that:
Would raise no new regulatory concerns at the State or Federal level if it was identified.
Is widely distributed in any given five-year period in the State where the host plant(s) is grown. It does not have to be widely prevalent every year at every location.