TY - JOUR T1 - Trichogramma in Brazil: feasibility of use after twenty years of research JO - Neotropical Entomology A1 - Parra, José R.P. A1 - Zucchi, Roberto A. SN - 1519-566X UL - 10.1590/S1519-566X2004000300001 VL - 33 Y1 - 2004 PB - Brasil ER -