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  • Title: Steinernema glaseri Santa Rosa strain (Rhabditida: Steinernematidae) and Heterorhabditis bacteriophora CCA Strain (Rhabditida: Heterorhabditidae) as biological control agents of Boophilus microplus (Acari: Ixodidae).
    Author: de Oliveira Vasconcelos V, Furlong J, de Freitas GM, Dolinski C, Aguillera MM, Rodrigues RC, Prata M.
    Journal: Parasitol Res; 2004 Oct; 94(3):201-6. PubMed ID: 15480784.
    Abstract:
    The present study was carried out to evaluate the action of Steinernema glaseri Santa Rosa strain and Heterorhabditis bacteriophora CCA strain as biological control agents of Boophilus microplus. Engorged females ticks were distributed on Petri dishes containing different concentrations of infective juvenile (IJ) nematodes (0, 375, 500, 750, 1,500, 2,500, 5,000 and 25,000). The data showed a reduction of approximately 90% in the eggs laid at a concentration of 5,000 S. glaseri IJs and approximately 80% at a concentration of 1,500 H. bacteriophora IJs. The female mortality increased linearly with the increase in S. glaseri concentrations. However, in the tests with H. bacteriophora this linearity was not observed. The effectiveness of the treatment with both species of entomopathogenic nematodes was compatible with other control methods. The results show the potential of S. glaseri and H. bacteriophora as biological control agents for the control of B. microplus under laboratory conditions.
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