caa a22 4500 388035463 CHVBK 20180307125003.0 cr unu---uuuuu 161130e199808 xx s 000 0 eng 10.1017/S0007485300042152 doi S0007485300042152 pii (NATIONALLICENCE)cambridge-10.1017/S0007485300042152 The bionomics of Listronotus bonariensis (Coleoptera: Curculionidae) in Canterbury, New Zealand [Elektronische Daten] A study was conducted in 1990-1995 in Canterbury, New Zealand to describe the phenology and seasonal abundance of all stages of the Argentine stem weevil Listronotus bonariensis (Kuschel), a New Zealand pest of Gramineae. Of note were major fluctuations in the densities of all stages from one season to the next which were not explained directly in terms of the availability of Neotyphodium lolii-free ryegrass tillers. The overwintering mortality rates of L. bonariensis were found to be linear and remarkably similar between seasons and locations in the absence of pathogens. This study also showed that care must be taken in the use of existing data to analyse the impact of the recently introduced South American parasitoid wasp Microctonus hyperodae Loan as a biological control agent of L. bonariensis; errors may exist because of earlier sampling biases. In spite of the confounding effects of seasonal variation in the L. bonariensis population, reduction in the size of the L. bonariensis first summer generation egg and larval peaks coincided with a build up of M. hyperodae. Copyright © Cambridge University Press 1998 Goidson S.L. AgResearch, PO Box 60, Lincoln, New Zealand Proffitt J.R. AgResearch, PO Box 60, Lincoln, New Zealand Baird D.B. AgResearch, PO Box 60, Lincoln, New Zealand Bulletin of Entomological Research Cambridge University Press 88/4(1998-08), 415-423 0007-4853 88:4<415 1998 88 BER https://doi.org/10.1017/S0007485300042152 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0007485300042152 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goidson S.L. AgResearch, PO Box 60, Lincoln, New Zealand NATIONALLICENCE 700 1- Proffitt J.R. AgResearch, PO Box 60, Lincoln, New Zealand NATIONALLICENCE 700 1- Baird D.B. AgResearch, PO Box 60, Lincoln, New Zealand NATIONALLICENCE 773 0- Bulletin of Entomological Research Cambridge University Press 88/4(1998-08), 415-423 0007-4853 88:4<415 1998 88 BER CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge