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A procedure for establishing a laboratory colony of the parsnip webworm, Depressaria pastinacella (Duponchel), is described. Because adults are initially in reproductive diapause, moths must be cold-treated for oviposition to occur. An artificial oviposition substrate and a semidefined artificial diet for larvae were developed to allow year-round rearing with minimal reliance on fresh plant material.
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Nitao et al. (1988) studied this question.
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