Document Type



Virginia Institute of Marine Science

Publication Date





Oysters in lower Chesapeake Bay survived the ravages of Dermocystidium during some hot summers in the past decade only to be scourged by a new disease (MSX) which appeared in 1959. We had learned to live with Dermocystidium by avoiding infected seed and limiting the number of hot summers oysters were held in infested areas. Now we are faced with the more difficult problem of adjusting to MSX, which is a devastating killer of oysters. The beginning of a new season of planting seed is an appropriate time to review our knowledge of teh various diseases of oysters.



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