Abstract
In studies in India, individual adults of Bemisia tabaci (Gennadius) acquired cowpea mild mottle virus (CMMV) after an acquisition feed on infected soyabean plants and transmitted it within 5 min to healthy soyabean plants. Starvation before the acquisition feed had no influence on transmission, but starvation after the acquisition feed decreased transmission frequency. Irrespective of the length of the acquisition feed, the ability to transmit CMMV was retained for only 4 successive inoculation access periods of 5 min each, but adults that lost the ability to transmit the virus could acquire and transmit it again. CMMV was not detected by enzyme-linked immunosorbent assay in adults that had been provided with access to infected plants for 1-8 h.
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