Document Detail


An analysis of using entomopathogenic nematodes against above-ground pests.
MedLine Citation:
PMID:  15301695     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Applications of entomopathogenic nematodes in the families Steinernematidae and Heterorhabditidae have traditionally been targeted against soil insects. Nonetheless, research over the last two decades highlights the potential of such agents against above-ground pests under certain circumstances. A general linear model was used to test for patterns in efficacy among 136 published trials with Steinernema carpocapsae Weiser, the most common species applied against foliar and other above-ground pests. The focus was on field and greenhouse assessments, rather than laboratory assays where relevant ecological barriers to infection are typically removed. The model showed differences in nematode treatment efficacy depending on the pests' target habitat (bore holes > cryptic foliage > exposed foliage) and trial location (greenhouse > field studies). Relative humidity and temperature during and up to 8 h post-application were also predicted to influence rates of nematode infection obtained. Conversely, spray adjuvants (both wetting agents and anti-desiccants) and nematode dosage applied (both concentration and use of consecutive applications 3-4 days apart) did not explain a significant amount of variance in nematode performance. With reference to case studies the model is used to discuss the relative importance of different factors on nematode efficacy and highlight priorities for workers considering using entomopathogenic nematodes to target pests in novel environments.
Authors:
S Arthurs; K M Heinz; J R Prasifka
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Bulletin of entomological research     Volume:  94     ISSN:  0007-4853     ISO Abbreviation:  Bull. Entomol. Res.     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-10     Completed Date:  2004-09-30     Revised Date:  2006-04-17    
Medline Journal Info:
Nlm Unique ID:  2984715R     Medline TA:  Bull Entomol Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  297-306     Citation Subset:  IM    
Affiliation:
Biological Control Laboratory, Department of Entomology, Texas A&M University, College Station, TX 77843-2475, USA. sarthurs@yarl.ars.usda.gov
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MeSH Terms
Descriptor/Qualifier:
Agriculture / methods*
Animals
Humidity
Insects / growth & development*
Linear Models
Nematoda / physiology*
Pest Control, Biological*
Soil / parasitology*
Temperature
Chemical
Reg. No./Substance:
0/Soil

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


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