Document Detail

Basic biology and small-scale rearing of Celatoria compressa(Diptera: Tachinidae), a parasitoid of Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae).
MedLine Citation:
PMID:  14704104     Owner:  NLM     Status:  MEDLINE    
The tachinid Celatoria compressa Wulp has been evaluated as a candidate biological control agent for the western corn rootworm, Diabrotica virgifera virgiferaLeConte, in Europe, where it is an invasive alien pest of maize. Special emphasis has been placed on understanding aspects of the parasitoid basic biology and on developing a rearing technique for a small-scale production of C. compressapuparia. The age of C. compressa adults was found to be the most crucial factor in achieving mating. Only newly emerged, 1-h-old females, mated successfully with 2- to 5-day-old males, achieving a success rate of 74%. After mating, a prelarviposition period of 4 days occurred. The 5-day-old C. compressa females inserted their eggs containing fully-developed first instars directly into adults of D. v. virgifera. Total larval and pupal developmental time, including a pre-larviposition period of 4 days, was 29 days under quarantine laboratory conditions (25 degrees C daytime, 15 degrees C at night, L:D 14:10, 50% +/- 10% r.h). Females of C. compressa were capable of producing on average 30 puparia throughout a female's mean larviposition period of 15 days. A large number of host attacks by C. compressa were unsuccessful, resulting in a mean larviposition success rate of 24% per female. Parasitoid females appear to have difficulties inserting the egg through the intersegmental sutures or membranes around leg openings of the host adults. Although the small-scale rearing technique of C. compressa presented is both time and labour intensive, C. compressa has been reared successfully for at least 20 successive generations without shifting the 1 male : 1 female sex ratio using a non-diapause strain of D. v. virgifera.
F Zhang; S Toepfer; U Kuhlmann
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Bulletin of entomological research     Volume:  93     ISSN:  0007-4853     ISO Abbreviation:  Bull. Entomol. Res.     Publication Date:  2003 Dec 
Date Detail:
Created Date:  2004-01-05     Completed Date:  2004-02-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2984715R     Medline TA:  Bull Entomol Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  569-75     Citation Subset:  IM    
CABI Bioscience Switzerland Centre, Rue des Grillons 1, 2800 Delémont, Switzerland.
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MeSH Terms
Age Factors
Beetles / parasitology*
Diptera / growth & development,  physiology*
Pest Control, Biological*
Sex Ratio
Sexual Behavior, Animal
Zea mays / parasitology

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

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