The present study was carried out to predict in the field, the emergence of Trissolcus brochymenae (Ashmead) and Telenomus podisi Ashmead, egg parasitoids of Piezodorus guildinii (West.), using a degree-day method. The total emergence of T. brochymenae and T. podisi was observed after the accumulation of 211.2 degree-day and 229 degree-day, respectively. The accuracy in the prediction of more than 50% of the emergence of T. brochymenae was better than for T. podisi , and for both species that emergence occurred 2-3 days before predicted date.
prediction; degree-day; parasitoids; Piezodorus guildinii; Glycine max
