Evidence for diapause in indiginous New Zealand insects: A review

Morris, Michael

doi:10.1080/03014223.1989.10422910

Cited by 7 publications

(4 citation statements)

References 14 publications

(17 reference statements)

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“…This shape corresponds to a type 1 photoperiodic response curve for diapause induction (Beck 1980) with a critical daylength of around 14-15 h. This similarity in the shape of the photoperiodic response curve as well as the increase in larval duration and number of moults required for development could point to a larval diapause being present in P. excessana. Diapause in New Zealand insects Incidences of overwintering in New Zealand insects have been reviewed by Roberts (1978) and Morris (1989). While overwintering was found in a great many species, few conclusive cases of diapause were found.…”

Section: Discussionmentioning

confidence: 99%

Photoperiodic control of larval development rate inPlanotortrix excessana(Lepidoptera: Tortricidae): Evidence for larval diapause

Morris

1990

New Zealand Journal of Zoology

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The larval development rate and pupal weights of Planotortrix excessana Walker were monitored under seven different 24 h photoperiods. Larvae developed through 5-7 instal's with the extra instars being most common in females. Photoperiod had a significant effect on the duration of all instars, total larval period, and number of instars.The response for both larval duration and instar number was typical of insects in which diapause occurs during long days. Evidence for the presence of a photoperiodically induceddiapause is discussed. Disturbance oflarvae during head-capsule measurement significantly reduced pupal weight in both sexes but had no effect on larval duration.

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Section: Discussionmentioning

confidence: 99%

Photoperiodic control of larval development rate inPlanotortrix excessana(Lepidoptera: Tortricidae): Evidence for larval diapause

Morris

1990

New Zealand Journal of Zoology

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“…Gardiner (1970) reared 49 species of cerambycid on artificial diets and found that most species completed their life cycle in less than half the normal time under laboratory conditions. Further, daylength has been shown to affect the development of some cerambycid larvae and other New Zealand insects (Morris 1989;Yoshinori & Yukio 1997). Hence, although the majority of the larvae were reared in complete darkness (L:D 0:24 h) to match natural conditions within timber, one sample of larvae was reared under a 16:8 h L:D photoperiod.…”

Section: Introductionmentioning

confidence: 99%

Rearing huhu beetle larvae,Prionoplus reticularis(Coleoptera: Cerambycidae) on artificial diet

Rogers¹,

Lewthwaite

Dentener

2002

New Zealand Journal of Zoology

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Huhu beetle larvae, Prionoplus reticularis White, were successfully reared in the laboratory at 20°C L:D 0:24 h on an artificial diet containing pine sawdust. The larval period was reduced to c. 250 days compared with at least 2 years in the field. Mean larval weight increased from 1.38 mg (neonate) to 3639 mg (mature larvae) after 230 days on artificial diet. Most larvae entered diapause, which was successfully terminated by ambient field conditions in season but not by laboratory chilling regimes. The diet used may be suitable for other cerambycids, and especially useful for rearing field-collected larvae to provide adult beetles for taxonomic studies.

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“…Although diapause does not feature strongly in indigenous species, it is retained by exotic species in NZ (Morris 1989). Should the species in a biological control system have contrasting factors regulating diapause, then it is possible for a large mismatch, control failure and local extinction.…”

Section: Climate Variabilitymentioning

confidence: 96%

Potential effects of climate change on biological control systems: case studies from New Zealand

et al. 2012

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Biological control systems are integral to New Zealand's success as a nation reliant on exporting quality agricultural, forestry and horticultural products. The likely impacts of climate change projections to 2090 on one weed and four invertebrate management systems in differing production sectors were investigated, and it was concluded that most natural enemies will track the changing distributions of their hosts. The key climate change challenges identified were: disparities in natural enemy capability to change distribution, lack of frosts leading to emergence of new pests and additional pest generations, non-target impacts from range and temperature changes, increased disruptions caused by extreme weather events, disruption of host-natural enemy synchrony, and insufficient genetic diversity to allow evolutionary adaptation. Five classical biological control systems based on the introduced species Longitarsus jacobaeae, Cotesia kazak, Aphelinus mali, Microctonus aethiopoides and Microctonus hyperodae are discussed in more detail.

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Evidence for diapause in indiginous New Zealand insects: A review

Cited by 7 publications

References 14 publications

Photoperiodic control of larval development rate inPlanotortrix excessana(Lepidoptera: Tortricidae): Evidence for larval diapause

Photoperiodic control of larval development rate inPlanotortrix excessana(Lepidoptera: Tortricidae): Evidence for larval diapause

Rearing huhu beetle larvae,Prionoplus reticularis(Coleoptera: Cerambycidae) on artificial diet

Potential effects of climate change on biological control systems: case studies from New Zealand

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