FREDERIKSEN, R. A. CURRENT STATUS OF THE DOWNY MILDEWS OF MAIZE IN THE AMERICAS. Agriculture and Natural Resources, Bangkok, Thailand, v. 10, n. 2, p. 164–167, 1976. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/240746. Acesso em: 18 sep. 2026.