The performance of the parasitoid species Aphidius transcaspicus Telenga on Hyalopterus amygdali Blanchard as the aphid host has been evaluated through a no-choice test. The experiments were carried out by measuring the prepupal and preimaginal development times, parasitism rate, emergence rate and sex ratio under controlled conditions. The effects of three constant temperatures between 20 and 27 °C (± 1 °C) and two host plants (almond tree, Prunus dulcis-winter host and reed, Phragmites communis-summer host) have been assessed. The results indicated that the highest prepupal (16.85 ± 0.293 days) and preimaginal (30.65 ± 0.254 days) development times appeared at 20 °C on P. communis and the lowest ones were also shown on the same host plant at 27 °C. In addition, the highest parasitism rate was observed on almond (62.78 ± 4.43% at 24 °C) while the lowest occurred on P. communis (30.38 ± 4.86% at 24 °C). The highest emergence rate was observed at 20 °C on P. communis (73.66 ± 5.03%) and on almond (61.64 ± 5.58%) whereas the lowest appeared at 27 °C on P. communis (27.50 ± 3.45%). Furthermore, the sex ratio was biased in favor of females on almond (0.360 ± 0.036 at 24 °C). However, it was slightly biased in favor of males on P. communis (0.547 ± 0.035 at 24 °C). Thus, the most favorable host plant and temperature for the development and multiplication of A. transcaspicus on H. amygdali was obviously almond tree and 24 °C (± 1 °C) respectively, among the tested plants and temperatures. Hence, these encouraging results could lead to carry on a release of this parasitoid in almond orchards.

通过无选择试验评估了拟寄生物种Aphidius transcaspicus Telenga 在作为蚜虫寄主的Hyalopterus amygdali Blanchard 上的表现。实验通过在受控条件下测量前蛹和成虫前发育时间、寄生率、羽化率和性别比来进行。评估了20 至 27 °C (± 1 °C) 之间的三个恒定温度和两种寄主植物（杏仁树、李子- 冬季寄主和芦苇、芦苇 -夏季寄主）的影响。结果表明，20℃时，白杨的预蛹期（16.85±0.293天）和成卵前期（30.65±0.254天）发育时间最长，同一寄主植物在27℃时发育时间最短。此外，杏仁的寄生率最高（24℃时为62.78±4.43％），而P.communis的寄生率最低（24℃时为30.38±4.86％）。20 °C 时，白杨(73.66 ± 5.03%) 和杏仁 (61.64 ± 5.58%)出苗率最高，而 27 °C 时，白杨(27.50 ± 3.45%) 出苗率最低。此外，吃杏仁的性别比例偏向于雌性（24°C 时为 0.360 ± 0.036）。然而，它稍微偏向于P. communis上的雄性（24 °C 时为 0.547 ± 0.035）。因此，在测试的植物和温度中，最有利于A. transcaspicus在H. amygdali上发育和繁殖的寄主植物和温度分别是杏仁树和24℃（±1℃）。因此，这些令人鼓舞的结果可能导致这种寄生蜂在杏仁园中继续释放。