Abstract

Larvae survived as well in sterilized as in unsterilized soil for 40 weeks; at 60 weeks, 77 percent of the larvae survived in unsterilized soil and 32 percent in sterilized soil. They lost more weight in sterilized than in unsterilized soil. Measurements of cast skins of larvae that molted more than once indicated that 5 larvae increased in size, 12 remained the same, and 1 became smaller. These findings support the theory that the occurrence of molting and the number of molts in insects are not rigidly regulated.

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