Yes, especially fungicides. A number of pathogens will attack germinating corn seed. Fusarium, Rhizoctonia, Helminthosporium, Penicillium, and Aspergillus are typical examples of pathogens waiting to attack corn seed in the soil. In cool, wet environments, Pythium can also be a problem, and other fungicides may need to be applied to the seed.
Seed insecticides are not as universally applied as fungicides, but they may be needed in certain management situations, i.e., rotating into pasture, alfalfa, etc.
