At PARC, decay was severe and over 95% of control
fruit were infected. Because infected fruit were not
removed periodically as in Hood River, gray mold was
quite advanced, and the type of infection (stem end, calyx
end, or puncture) could not be determined. None of the
treatments affected total gray mold (Table 2). Naturally occurring
snow-mold rot caused by an unidentified basidiomycete
infected over 42% of control fruit and was significantly
(P = 0.001) reduced by all hexanal and 1-MCP treatments
(Table 2). Naturally occurring blue mold caused by P.
expansum increased significantly (P = 0.001) in both treatments
containing hexanal while 1-MCP alone had no effect
(Table 2).