Document Detail

Host range, specificity, and virulence of Steinernema feltiae, Steinernema rarum, and Heterorhabditis bacteriophora (Steinernematidae and Heterorhabditidae) from Argentina.
MedLine Citation:
PMID:  10222175     Owner:  NLM     Status:  MEDLINE    
Infections were carried out in the laboratory to determine the host range, specificity, and virulence of Steinernema rarum, S. feltiae, and Heterorhabditis bacteriophora that were isolated from different regions of Argentina. All insect orders showed a remarkable susceptibility to the three nematode species, showing mortality values higher than 66%, except for Anoplura. The mortality of the insects of agronomic interest was more than 90%. As for insects of sanitary importance, S. feltiae and S. rarum caused 60% of mortality, whereas H. bacteriophora caused 80%. The results fluctuated when considering the buccal apparatus function of the insects. Nematodes completed their cycle in anoplurans, orthopterans, lepidopterans, and hymenopterans, while the development varied in coleopterans, homopterans, hemipterans, and dipterans. S. rarum developed completely both in immature and adult, while S. feltiae and H. bacteriophora developed preferably in immature. The three isolates are capable of parasitizing a wide host range under laboratory conditions; H. bacteriophora is more virulent than the evaluated Steinernema spp. against Galleria mellonella larvae; the pathogenicity and specificity depend on the bioecological characteristics of nematodes and hosts.
M M de Doucet; M A Bertolotti; A L Giayetto; M B Miranda
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of invertebrate pathology     Volume:  73     ISSN:  0022-2011     ISO Abbreviation:  J. Invertebr. Pathol.     Publication Date:  1999 May 
Date Detail:
Created Date:  1999-06-29     Completed Date:  1999-06-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0014067     Medline TA:  J Invertebr Pathol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  237-42     Citation Subset:  IM    
Copyright Information:
Copyright 1999 Academic Press.
Centro de Zoología Aplicada, Universidad Nacional de Córdoba, Casilla de Correo 122, Córdoba, 5000, Argentina.
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MeSH Terms
Insects / parasitology
Pest Control, Biological / methods
Rhabditoidea / pathogenicity,  physiology*

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