Techniques for detecting <i>Actinidia resistance</i> to leafrollers

Authors

  • C.E. McKenna
  • S.J. Dobson
  • P.G. Connolly

DOI:

https://doi.org/10.30843/nzpp.2006.59.4522

Abstract

Hayward and Hort16A kiwifruit are susceptible to attack by the brownheaded leafroller (BHLR) Ctenopseustis obliquana but the incidence and severity of damage to Hayward can be twice that of Hort16A Three bioassay techniques were tested for their ability to detect differences in the relative susceptibility of the two kiwifruit cultivars to BHLR larvae No differences were detected when larvae were reared on artificial diets containing Hayward or Hort16A plant material Significantly more larvae survived when reared on Hayward versus Hort16A leaf discs Caging larvae onto leaves and fruit resulted in significantly more damage to Hayward compared with Hort16A Measuring larval survival after 21 days on leaf discs or the incidence and severity of damage caused by larvae caged on leaves or fruit are both potential techniques for screening Actinidia plant material for resistance to leafrollers

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Published

2006-08-01

How to Cite

McKenna, C., Dobson, S., & Connolly, P. (2006). Techniques for detecting <i>Actinidia resistance</i> to leafrollers. New Zealand Plant Protection, 59, 51-56. https://doi.org/10.30843/nzpp.2006.59.4522

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