Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Standard Practice for Conducting Fungal Pathogenicity Tests on the Lepidopteran Egg Parasite 'Trichogramma pretiosum' (Hymenoptera: Trichogrammatidae).
Author Sewall, D. K. ; Lighthart, B. ;
CORP Author Corvallis Environmental Research Lab., OR.
Publisher 2 Aug 90
Year Published 1990
Report Number EPA/600/3-90/069;
Stock Number PB90-263849
Additional Subjects Fungi ; Lepidoptera ; In vivo analysis ; Bioassay ; Registration ; Tolerances(Physiology) ; Biological pest control ; Trichogramma pretiosum ; Dose-response relationships ; Virulence ; Test methods
Library Call Number Additional Info Location Last
NTIS  PB90-263849 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 12/03/1990
Collation 46p
As directed by Subdivision M of the Pesticide Assessment Guidelines, the entomogenous fungi being registered for use in the U.S. must be evaluated for nontarget effects on certain beneficial insects. Methods were developed and validated with the cosmopolitan entomogenous fungus Beauveria bassiana (ARSEF252) to evaluate the lethal effects of fungi on the beneficial wasp Trichogramma pretiosum Riley via direct contact. T. pretiosum challenged with B. bassiana (ARSEF252) produce dose responses with LC50's on day three of 10 to the fifth power to 10 to the sixth power and on day four of 10 to the fourth power to 10 to the fifth power conidia/ml. Procedures for conducting the bioassay, maintaining cultures of the insects used, and construction of special tools used in the bioassay are detailed.