Host Range and Seed-Transmission Studies of Maize Chlorotic Mottle Virus in Grasses and Corn

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Abstract
Nineteen and 15 grass species were systemic hosts for Kansas and Peru serotypes, respectively, of maize chlorotic mottle virus. Host responses between serotypes were similar, with differences primarily in latent hosts. Maize chlorotic mottle virus was not found in 230 grass samples (representing 14 spp.) collected near fields of infected corn, suggesting that the virus does not overwinter in grassy weeds. However, maize dwarf mosaic strain B and wheat streak mosaic vius were found in those grasses and corn bait plants. Maize chlorotic mottle virus was not seed transmitted in 14 inbred corn lines, 5 corn hybrids, Panicum miliaceum, Setaria lutescens or S. viridis.