Bad Clams By postpest Dec 24, 1938 Asian Clam First discovered Asian Clams in 1938 Dec 24, 1945 Asian Clam Started spreading through the 38 states from 1945 to 2011 May 23, 2016 Asian Clam Since the first spotting of Asian Clams, they are found in 38 states and the District of Columbia.
