Spinach, Spinacia oleracea L. breeding lines and a commercial cultivar were evaluated for differences in green peach aphid, Myzus persicae (Sulzer), preference, developmental time, adult longevity and fecundity. Aphid preference varied significantly among the breeding lines and the commercial cultivar ‘Kent.’ Line F70 was the only line significantly non-preferred when compared with ‘Kent’. Significant differences in aphid developmental time, adult longevity and fecundity were detected. Aphids held on line F70 required a longer period to reach reproductive age and produced fewer young than aphids held on ‘Kent.’

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Author notes

2 Department of Horticulture

3 Department of Plant Pathology