Ran out of fresh mulberry leaves today, had a bag of 150 in the crisper that were over 2 months old and were nasty , had been sealed in a zip lock bag and forgotten about.
Thought I'd left the bag only loosely sealed , but it was air tight and this was resulted in the spoiling of the leaves in the bag, the leaves from the same batch I finished off yesterday were still fine when used (loosely wrapped/sealed (NOT airtight).
Horrible , very slimmy and very mouldy so the entire bag went straight into the bin, bag and all.
Fortunately I still had some frozen blanched mulberry leaves in the freezer which looked despite 2 years old. If the silkworms eat some of them overnight , I've got enough frozen leaves to see me out til after Easter when I've 200 fresh mulberry leaves ordered , if they don't , I'll be making some chow tomorrow. (Got plenty to powdered chow as a backup if I need it.).
.... already chewing the thawed leaves .... so I think they are fine. A very good result.