EVALUATION OF THE EFFICACY OF NATURAL COMPOUND AND CUPPER NANO PARTICLE COMPOUNDS IN CONTROLLING CERCOSPORA LEAF SPOT DISEASE OF SUGAR BEET. INTERNATIONAL JOURNAL OF ADVANCED RESEARCH AND REVIEW (IJARR), [S. l.], v. 7, n. 7, p. 43–53, 2022. Disponível em: https://www.ijarr.org/index.php/ijarr/article/view/563.. Acesso em: 17 apr. 2026.