The efficiency of several fungicides, applied as seed dressing in the control of Fusarium moniliforme, Helminthosporium rnaydis, Aspergillus sp., Penicillium sp. and Colletotrichum graminicola in corn seeds was evaluated. The fungicides effect on control these pathogens was evaluated in laboratory (blotter test). The seedling emergency was evaluated in greenhouse, using the ?growing on test?. In the first experiment the used seeds were of the BR 201 hybrid, with natural incidence of 55.0% nith F. moniliforme, 6.5% with H. maydis, 91.5% with Aspergillus sp. and 53.5% with Penicillium sp. In the second experiment the used seeds were of the cv. CX-133, which showed, after inoculation, 44.0% of C. graminicola incidence. All chemical treatments reduced the incidence of the pathogens in corn seeds. The treatment more efficient in the control of F. moniliforme was the thiabendazole. For the control of H. maydis tolylfluanid M (100g a.i./100kg of seeds), iprodione + thiram and carboxin + thirarn were the best treatments. Aspergillus sp. and Penicillium sp. were better controlled when the seeds were treated with tolylfluanid M in both doses, thiabendazole and captan. The best treatment in the control of C. graminicola was captan (240g a.i./100kg of seeds). The effect of fungicides in the seedling emergency was observed. The treatments with pencycuron showed phytotoxic to corn, showing seedlings emergency and producing twisted, tickcned and over-developed leaves.