Reservoir Weed Hosts of Tomato Spotted Wilt Virus. J. J. Cho, Department of Plant Pathology, University of Hawaii, HITAHR-Maui Research, P.O. Box 269, Kula 96790. R. F. L. Mau, Department of Entomology, University of Hawaii, Honolulu 96822; D. Gonsalves, Department of Plant Pathology, New York Agricultural Experiment Station, Cornell University, Geneva 14456; and W. C. Mitchell, Department of Entomology, University of Hawaii, Honolulu 96822. Plant Dis. 70:1014-1017. Accepted for publication 26 May 1986. Copyright 1986 The American Phytopathological Society. DOI: 10.1094/PD-70-1014.

Surveys were made in Hawaii’s major vegetable production areas including Waianae on Oahu, Kula on Maui, and Waimea on Hawaii to determine important reservoir plants of tomato spotted wilt virus (TSWV). More than 9,000 plant samples were collected and analyzed for TSWV by enzyme-linked immunosorbent assay. Forty-four plant species representing 16 families were found infected with TSWV. Twenty-five species are considered important reservoirs of the virus. Twenty-four new TSWV host recordings are identified.

Keyword(s): insect vector, thrips.