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  • Title: Laboratory bioassays of entomopathogenic fungi for control of Delia radicum (L.) larvae.
    Author: Bruck DJ, Snelling JE, Dreves AJ, Jaronski ST.
    Journal: J Invertebr Pathol; 2005 Jun; 89(2):179-83. PubMed ID: 16087004.
    Abstract:
    Laboratory soil bioassays were performed at economic field rates for in-furrow (3.85 x 10(6)spores/g dry soil) and broadcast (3.85 x 10(5)spores/g dry soil) applications with three isolates of Metarhizium anisopliae (F52, ATCC62176, and ARSEF5520) and one isolate of Beauveria bassiana (GHA). All isolates tested were infective to second instar Delia radicum (L.). The conditionally registered M. anisopliae isolate (F52) performed best killing an average of 85 and 72% of D. radicum larvae at the high and low concentration, respectively. The mean LC50 and LC95 of F52 against second instar D. radicum was 2.7 x 10(6) and 1.8 x 10(8)spores/g dry soil, respectively. The use of F52 in an integrated management program is discussed.
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