Abstract
A satisfactory method for continuous rearing of Dioryctria abietella (D. & S.) has been developed. Larvae are maintained in petri dishes using paraffin-waxed, first-year pine cones as food. The duration of the life cycle was slightly over 1 month under summer conditions. Survival to the adult stage has ranged from 50% upward. In a 1-year period about 1,000 moths were reared, and 1,600 larvae developed to late instars before use in insecticide tests.

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