Analysis of the biological indices of Trichogramma pintoi at 23–25°C, depending on the storage duration of the extract at 4°C, revealed a decreasing trend in biological indices. The longer the extract was stored (28 days), the lower the biological index values. At 4°C, the biological indices varied as follows: fecundity: 22.1–24.8 eggs per female; hatching rate of individuals: 80.5–92.2%, female hatching rate: 51.0–56.0%, host-seeking ability: 79.2–90.2% in the mini-olfactometer, parasitism rate: 76.36–89.4%, static quality criterion: 9.0–12.8. At 26–30°C, a decreasing trend in biological indices was also observed. The longer the extract storage period (28 days), the lower the biological index values. At 26–30°C, the biological indices varied as follows: fecundity: 22.1–23.3 eggs per female, hatching rate of individuals: 75.5–85.0%, female hatching rate: 50.0–54.0%, host-seeking ability: 82.1–85.6% in the mini-olfactometer, parasitism rate: 76.9–87.0%, static quality criterion: 8.3–10.7.