Document Detail


The bionomics of an invasive species Sitona lepidus during its establishment in New Zealand.
MedLine Citation:
PMID:  20003608     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The egg, larval, pupal and adult abundance of the clover root weevil Sitona lepidus Gyllenhal (Coleoptera: Curculionidae) was monitored at three sites for the first ten years following the discovery of this exotic pest in the Waikato region of New Zealand. The species went through an initial boom and bust cycle at two sites, with populations reaching up to 1800 larvae m-2. Thereafter, winter larval populations were relatively stable, ranging between 450-750 m-2. Unlike in the Northern Hemisphere, S. lepidus was found to have two generations a year in the Waikato region of New Zealand. Pasture white clover content at the time of peak adult numbers was positively related to the subsequent peak larval populations for each generation. The factors contributing to the emergence of S. lepidus as one of the most important pasture pests in New Zealand are discussed.
Authors:
P J Gerard; S L Goldson; S Hardwick; P J Addison; B E Willoughby
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-12-14
Journal Detail:
Title:  Bulletin of entomological research     Volume:  100     ISSN:  1475-2670     ISO Abbreviation:  Bull. Entomol. Res.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-04     Completed Date:  2010-10-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984715R     Medline TA:  Bull Entomol Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  339-46     Citation Subset:  IM    
Affiliation:
AgResearch, Ruakura Research Centre, Private Bag 3123, Hamilton 3240, New Zealand. pip.gerard@agresearch.co.nz
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MeSH Terms
Descriptor/Qualifier:
Animals
Ecology*
Larva
Medicago / parasitology
New Zealand
Population Density
Population Dynamics
Rain
Seasons
Weevils / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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