The dispersion capacity of Trichogramma pretiosum, Riley 1879 in relation to eggs of Anticarsia gemmatalis, Hübner 1818, was studied in soybean, in Piracicaba, State of São Paulo, Brazil. The dispersion capacity of T. pretiosum 24 hours after release, was 8m and 77 m2. The results obtained indicate that the release for controling A. gemmatalis should be performed at 130 points/ha.
Trichogramma pretiosum; soybean; Anticarsia gemmatalis; biological control; Glycine max