FREDERIKSEN RA. CURRENT STATUS OF THE DOWNY MILDEWS OF MAIZE IN THE AMERICAS. Agr. Nat. Resour. [internet]. 1976 Jul. 1 [cited 2026 Sep. 18];10(2):164-7. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/240746