Verticillium survives heat in Mojave Desert alfalfa
AuthorsDonald C. Erwin
Amy B. Howell
Hilgardia 52(4):24-26. DOI:10.3733/ca.v052n04p24. July 1998.
Verticillium albo-atrum, the cause of Verticillium wilt of alfalfa, was detected consistently in 1989 and 1990 in alfalfa stems collected from a farm in the Mojave Desert at air temperatures (up to 104°F) above the maximum (86°F) for its growth and sporulation. According to research in other areas of the United States and in Canada, infected alfalfa hay is a prime source of inoculum. Resistance to Verticillium wilt in nondormant germplasms was readily developed by selection in six germplasms that have been released.
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