Effect of Host Phenology on Ovipositional Preference of Winter form Pear Psylla (Homoptera: Psyllidae)

Authors

  • L. C. Stuart U.S. Department of Agriculture Agricultural Research Service Appalachian Fruit Research Station 45 Wiltshire Road Kearneysville, WV 25430
  • B. A. Butti U.S. Department of Agriculture Agricultural Research Service Appalachian Fruit Research Station 45 Wiltshire Road Kearneysville, WV 25430
  • R. L. Bell U.S. Department of Agriculture Agricultural Research Service Appalachian Fruit Research Station 45 Wiltshire Road Kearneysville, WV 25430

Abstract

In free-choice assays using budwood at similar stages of leaf emergence, winter form (WF) pear psylla (Cacopsylla pyricola Foerster form simulans) showed no ovipositional preference for psylla-susceptible 'Bartlett' (Pyrus communis L.) over psyllaresistant W6 (P. ussuriensis Maxim.) or NY10353 (P. ussuriensis x P. communis (hybrid). After budbreak, WF psylla oviposited on the host with foliage in the most advanced stage of leaf emergence.

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Vol. 86 (1989): Journal of the Entomological Society of British Columbia

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Articles

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