Cultivar Acceptance and Suitability for Preimaginal Development of the Strawberry Leafroller (Lepidoptera: Tortricidae)

Abstract

Preimaginal development and survival and female ovipositional responses of the strawberry leafroller, Ancylis comptana (Froelich), were similar on four commercial strawberry cultivars, Fragaria × Ananassa Duch. (‘Earliglow,’ ‘Honeoye,’ ‘Redcoat,’ and ‘Selva’) and wild strawberry, Fragaria virginiana Duch. All cultivars and F. virginiana were equally suitable for A. comptana preimaginal development. At 26°C and a photoperiod of 16:8 (L:D), developmental times ranged from 19.6 d on ‘Earliglow’ to 21.6 d on F. virginiana . Preimaginal survival ranged from 52% on ‘Redcoat’ to 68% on ‘Honeoye.’ No relationship was observed between ovipositional responses and trichome densities on the four cultivars and F. virginiana . In the laboratory, ‘Honeoye’ was slightly preferred by ovipositing females over ‘Earliglow,’ ‘Selva,’ and wild strawberry, but this preference was not apparent in field cage studies.