Evaluation of entomopathogenic nematodes under laboratory and greenhouses conditions for the control of Spodoptera frugiperda

The increased corn planting grown in the late season crop and the use of a notillage planting system benefits the development of Spodoptera frugiperda, the main pest of corn crop. Thus, this study aimed to select entomopathogenic nematodes based on the mortality of S. frugiperda, and to adjust the n...

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Bibliographic Details
Published in:Ciência rural 2010-09, Vol.40 (9), p.1860-1866
Main Authors: Andaló, Vanessa, Santos, Viviane, Moreira, Grazielle Furtado, Moreira, Camila Costa, Moino Junior, Alcides
Format: Article
Language:English
Subjects:
Agrociencias
AGRONOMY
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Summary:The increased corn planting grown in the late season crop and the use of a notillage planting system benefits the development of Spodoptera frugiperda, the main pest of corn crop. Thus, this study aimed to select entomopathogenic nematodes based on the mortality of S. frugiperda, and to adjust the nematode concentrations in the laboratory and evaluate the action of these organisms in greenhouse conditions. Seventeen nematode populations were tested at concentrations of 100, 250, and 500 infective juveniles (IJ)/larvae. The obtained data were submitted to the polynomial regression test. In the greenhouse, corn sowing was performed in plastic buckets with soil, corn straw, and water. After 7 days, Steinernema arenarium or Heterorhabditis sp. RSC02, and the larvae were added (40 larvae, one larvae/repetition). The data were submitted to the variance analysis and the Scott-Knott test (P
ISSN:1678-4596
0103-8478
1678-4596
DOI:10.1590/S0103-84782010005000151