Host Range and Seed-Transmission Studies of Maize Chlorotic Mottle Virus in Grasses and Corn. D. L. Bockelman, Department of Plant Pathology, Kansas State University, Agricultural Experiment Station, Manhattan 66506. L. E. Claflin, and J. K. Uyemoto, Department of Plant Pathology, Kansas State University, Agricultural Experiment Station, Manhattan 66506. Plant Dis. 66:216-218. Accepted for publication 1 June 1981. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-216.

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 species) collected near fields of infected corn, suggesting that the virus does not overwinter in grassy weeds. However, maize dwarf mosaic virus strain B and wheat streak mosaic virus were found in those grasses and corn bait plants. Maize chlorotic mottle virus was not seed transmitted in 14 inbred corn lines, five corn hybrids, Panicum miliaceum, Setaria lutescens, or S. viridis.

Keyword(s): bait plant containers, brome mosaic virus, weed hosts.