Population Diversity of Encarsia formosa, a Biocontrol Agent in Glasshouses (Hymenoptera: Aphelinidae)
Nemec, Vaclav; Stary, Petr
Populations of Encarsia formosa Gahan 1924 reared from Trialeurodes vaporariorum (Westhoff 1887) from the United Kingdom ("historical population"), the Netherlands (commercial population), Sweden, Poland and Czechoslovakia (2 localities) were compared by disc gel electrophoretic analysis of esterase isozymes in the females (individual samples). All populations showed identical monomorphic patterns. Population diversity of E. formosa and E. tricolor Förster 1878 is compared.