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Pathogenicity of the Entomopathogenic Fungus Metarhizium anisopliae (Deuteromycetes) to Ixodes scapularis (Acari: Ixodidae)

Elyes Zhioua, Marsha Browning, Paul W. Johnson, Howard S. Ginsberg and Roger A. LeBrun
The Journal of Parasitology
Vol. 83, No. 5 (Oct., 1997), pp. 815-818
DOI: 10.2307/3284273
Stable URL: http://www.jstor.org/stable/3284273
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Pathogenicity of the Entomopathogenic Fungus Metarhizium anisopliae (Deuteromycetes) to Ixodes scapularis (Acari: Ixodidae)
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Abstract

The entomopathogenic fungus Metarhizium anisopliae is highly pathogenic to the black-legged tick, Ixodes scapularis. Spore concentrations of 108/ml for engorged larvae and 107/ml for engorged females resulted in 100% tick mortality, 2 wk postinfection. The LC50 value for engorged larvae (concentration to kill 50% of ticks) was 107 spores/ml. Metarhizium anisopliae shows considerable potential as a microbial control agent for the management of Ixodes scapularis.

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