Development of a novel bioassay system to assess the effectiveness of entomopathogenic fungi against imported fire ants

Abstract A novel spray tower was developed for bioassay of biopesticide formulations. The virulence of Metarhizium brunneum and Metarhizium anisopliae ATCC 62176 was evaluated against imported fire ants. Both isolates were virulent but M. brunneum was more effective against imported fire ants. Results proved this apparatus was reliable, sensitive and accurate.

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