Revista Colombiana de Entomología (2015) 41, 280-282

Paulo Henrique De S. Sabino, Alcides Moino Jr., Vanessa Andaló, Lidiany M.Z. Lima and Fernanda S. Sales (2015)
A method for measuring the concentration of CO₂ released by entomopathogenic nematodes
Revista Colombiana de Entomología 41 (2), 280-282
Abstract: This study aimed to standardize a method for measuring the concentration of CO₂ released by infective juveniles (IJ's), in order to assess their metabolic activity. The nematodes used in this experiment were Heterorhabditis amazonensis JPM4 and Steinernema carpocapsae All. A standardized gas chromatography (GC) method was used for CO₂ analysis. There was a linear increase in CO₂ concentration associated with increased numbers of IJs. Additionally, the CO₂ concentration obtained for S. carpocapsae was higher than that obtained for H. amazonensis. The standardized GC method was adequate to measure the concentration of CO₂ released by IJ's.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Alcides Moino Jr.

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Steinernema carpocapsae/Xenorhabdus nematophila (entomopathogen)			U.S.A. (SE)
Heterorhabditis amazonensis (entomopathogen)			Brazil (south)