Bohinc, Tanja, and Stanislav Trdan. “Comparison of Insecticidal Efficacy of Four Natural Substances Against Granary Weevil (Sitophilus Granarius [L.]) Adults: Does the Combined Use of the Substances Improve Their Efficacy?”. Spanish Journal of Agricultural Research 15, no. 3 (December 21, 2017): e1009. Accessed August 13, 2022. https://revistas.inia.es/index.php/sjar/article/view/11172.