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Main Title Susceptibility of the Convergent Lady Beetle ('Coleoptera: Coccinellidae') to Four Entomogenous Fungi.
Author James, R. R. ; Lighthart, B. ;
CORP Author Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR. Environmental Research Lab.
Publisher 1993
Year Published 1993
Report Number EPA/600/J-94/273;
Stock Number PB94-182375
Additional Subjects Beetles ; Pest control ; Fungi ; Bioassay ; Laboratory tests ; Susceptibility ; Coleoptera ; Exposure ; Concentration(Composition) ; Infection ; Test methods ; Mortality ; Reprints ; Hippodamia convergens ; Nontarget species ; Microbial pest control ; Beauveria bassiana ; Metarhizium anisopliae ; Preditors
Library Call Number Additional Info Location Last
NTIS  PB94-182375 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 5p
Many entomogenous fungi used as biological control agents of insect pests have broad host ranges and may infect nontarget organisms, potentially causing unanticipated environmental effects. The authors tested the susceptibility of a predatory beetle, Hippodamia convergens Guerin-Meneville, to five entomogenous fungi, all of which are being considered or used for pest control; Metarhizium anisopliae, Paecilomyces fumosoroseus, Nomuraea rileyi, and two strains of Beauveria bassiana. First-instar beetle larvae were exposed in laboratory bioassays to five concentrations of fungal preparations. M. anisopliae caused up to 97% mortality, an aphid-derived strain of B. bassiana caused up to 95% mortality, a beetle-derived strain of B. bassiana caused up to 75% mortality, and P. fumosoroseus caused up to 56% mortality. The authors conclude the M. anisopliae, B. bassiana, and P. fumosoroseus have the potential to infect H. convergens if used in crops where this predator occurs, whereas N. rileyi does not.