SURVIVAL OF APPLE MAGGOT LARVAE, RHAGOLETIS-POMONELLA (DIPTERA-TEPHRITIDAE), IN PICKED AND UNPICKED APPLES

Apple maggot eggs, Rhagoletis pomonella (Walsh), hatched equally well in apples on the tree and in picked fruit. Many larvae completed development in all different maturities of picked fruit and development and survival were similar in different cultivars. In contrast, larval mortality was high in apples remaining on the tree, particularly in fruit infested in late June and July. More larvae survived in the unpicked fruit of the earlier ripening, softer cultivars, Wealthy and McIntosh, than in the later ripening Rhode Island Greening and Rome apples. © 1979, Entomological Society of Canada. All rights reserved.