Population Studies on Cadra cautella in a Citrus Pulp Warehouse with Particular Reference to Diapause1

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Abstract
The maximum increases in almond moth population density observed in a citrus pulp warehouse were 25- to 50-fold, and subsequently the growth rates were reduced by a pathogen, parasite, and 2 egg predators, Generation time was 6–8 wk. Throughout the storage period, last-instar larvae entered diapause in increasing numbers. Diapausing larvae remained active after nondiapausing larvae of the same generation pupated. The spatial distribution of diapausing and nondiapausing last-instar larvae was the same and changed systematically during the storage period.

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