Abstract
Stages of Laspeyresia pomonella (L.) from the massreared colony were examined for 83 consecutive weeks. Females taken from oviposition cages were dissected and found to contain an average of 2.3 spermatophores per female, 91.7% had mated one or more times, and about 7% were damaged because of excessive mating which had caused early mortality. Average oviposition and average egg hatch were 92 eggs and 53% hatch on waxed paper and 111 eggs and 67% hatch on plastic pellets. The highest production of eggs (number laid per week per female) occurred in August; the lowest occurred in January. An average of 6 eggs was required to produce 1 moth, and each apple produced an average of 1.3 moths, although 17% produced no moths. Each female codling moth produced an average 16 normal moths.
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