He, X.Z., and Q. Wang. “Host Age Preference in <i>Aphidius ervi</i≫ (Hymenoptera Aphidiidae)”. New Zealand Plant Protection 59 (August 1, 2006): 195–201. Accessed May 29, 2024. https://journal.nzpps.org/index.php/nzpp/article/view/4541.