EVALUATION OF THE EFFICACY OF NATURAL COMPOUND AND CUPPER NANO PARTICLE COMPOUNDS IN CONTROLLING CERCOSPORA LEAF SPOT DISEASE OF SUGAR BEET. IJARR [Internet]. 2022 Jul. 12 [cited 2026 Apr. 17];7(7):43-5. Available from: https://www.ijarr.org/index.php/ijarr/article/view/563