Willoughby, B.E., B. Cooper, K. Panckhurst, and D.J. Wilson. “Combining Chlorpyrifos and Diflubenzuron for Effective Management of Clover Flea (Sminthurus Viridus)”. New Zealand Plant Protection 55 (August 1, 2002): 258–262. Accessed August 29, 2026. https://journal.nzpps.org/index.php/nzpp/article/view/3949.