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New Zealand Plant Protection 69 (2016): 318

Longevity and fecundity of laboratory-reared Liotryphon caudatus, an ectoparasitoid of codling moth

V.A. Davis, W.R.M. Sandanayaka and J.G. Charles


Liotryphon caudatus was introduced into New Zealand to control codling moth (CM; Cydia pomonella) in the early 1900s. As part of ongoing research into the biological control of CM, a laboratory colony of L. caudatus was established from field-collected adults, reared on diapausing CM larvae. The longevity and fecundity of laboratory-reared L. caudatus adults were measured at 231C and 16 h photoperiod. Longevity in a non-host environment was measured by holding a newly emerged female and a male in a container with water and food. Survival of 18 pairs was monitored daily. The food and water in the containers were refreshed regularly. The fecundity and the longevity of females were measured by providing five diapausing CM larvae to each of nine mated females (age 7-10 days) in a similar container with food and water. The CM larvae were replaced every 48 hours until the females were dead. In the interactions between L. caudatus and Mastrus ridens, a recently released gregarious ectoparasitoid of codling moth, in apple-growing areas where L. caudatus has already established.

Related articles
pdfInterspecific competition between Mastrus ridens and Liotryphon caudatus, ectoparasitoids of codling moth Cydia pomonella
W.R.M. Sandanayaka, V.A. Davis and J.G. Charles (2016)
New Zealand Plant Protection 69: 310-317

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