Record Display for the EPA National Library Catalog


Main Title Factors Influencing Discrimination between Insecticide-Treated and Untreated Foods by Northern Bobwhite.
Author Bennett., R. S. ;
CORP Author Corvallis Environmental Research Lab., OR.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/195;
Stock Number PB90-140807
Additional Subjects Feeding stuffs ; Discrimination ; Insecticides ; Food contamination ; Feeders ; Mortality ; Carbamates ; Lethal dosage ; Reprints ; Colinus virginianus ; Parathion
Library Call Number Additional Info Location Last
NTIS  PB90-140807 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Tests were conducted to determine at what dietary concentrations northern bobwhite (Colinus virginianus) chicks (14 days old) could discriminate between pesticide-treated and untreated food using an organophosphate (OP) insecticide, parathion, and two carbamates, carbofuran and methiocarb. Results from subacute dietary LC50 tests (one feeder of treated food per cage) were compared to tests where birds were presented with two feeders (one treated, one untreated, 9:1). In all tests, mortality was inversely related to total food consumption. No relationship was found between mortality and the amount of active ingredient ingested/bird/day. Consequently, mortality was more a function of ability to locate untreated feeders than amount of chemical ingested. When alternative food choices exist, vulnerability to poisoning can be influenced by the number and relative abundance of those choices, as well as the bird's ability to detect the chemical.