In order to calculate the development time of C. flavipes in D. tabernella and D. Saccharalis, and their effectivity in the control of D. tabernella; 189 larvae of D. saccharalis and 160 larvae of D. tabernella were inoculated with parasitic wasp C. flavipes. In addition, 573180 specimens of C. flavipes were released in a treated area of 293930 m2 with of 71850 m2 kept as control, with no release of the parasitic wasp. The life cycle was shorter in D. saccharalis with 15.93 ± 0.41 days (n=189), than in D. tabernella with 16.99 ± 1.13 days (n=160), (Mann-Whitney, U-test, p=0.0000). C. flavipes was reached only in the treated area 8.18 ± 8.01 % of parasitism but not reduce the economical loss, with an infestation of 3.66 ± 1.35% (Mann-Whitney, U-test, p=0.7611). Other parasitoid of D. tabernella was found in the field, Paratheresia claripalpis Wulp (Diptera:Tachinidae) that reached higher parasitism than C. flavipes, affected 15.31 ± 5.44% and 15.30 ± 2.75% in both control and treated areas (Mann-Whitney, U-test, p=<0.05).