I was told in my entomology class that most of the ladybugs will always try to leave, because they were collected at the other end of their yearly migration. Their tiny brains are certain that they need to go somewhere else, even if they're in a perfectly good garden.
(We also learned that the other end of the migration cycle is in mountain caves, where they are collected from vast heaps of inert insecta using shovels. Dude.)
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Date: 2008-06-20 04:29 am (UTC)(We also learned that the other end of the migration cycle is in mountain caves, where they are collected from vast heaps of inert insecta using shovels. Dude.)