Bilal Saad Jalil 2026. Efficacy of Oregano Essential Oil as a Sustainable Biocontrol Agent Against Major Phytopathogens of Tomato and Onion in Karbala, Iraq: From In Vitro to In Vivo Assessment. University of Thi-Qar Journal of agricultural research. 15, 1 (Jun. 2026). DOI:https://doi.org/10.54174/08gq6590.