Fungal Insecticides
The emerald ash borer is an insect that attacks ash trees. It is in turn parasitized by a pathogenic fungus that holds promise as a biological insecticide. The parasitic fungus appears as white fuzz on the body of the insect.
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"OpenStax College, Biology. November 14, 2013."
http://cnx.org/content/m44629/latest/?collection=col11448/latest
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