Dispersal of Aphids and leafhoppers from Red Clover to Red Mexican Beans, and the Spread of Bean Yellow Mosaic by Aphids1234

Seasonal Occurrence and Abundance of Beet Leafhopper in the Potato Growing Region of Washington and Oregon Columbia Basin and Yakima Valley

“…With the exception of a few studies conducted several decades ago (Hills 1937;Hagel and Landis 1967;Hagel and Hampton 1970;Hagel et al 1973), little is known on the ecology and biology of important leafhoppers found in the Columbia Basin of Washington and Oregon, including the beet leafhopper. The main objective of the present study was to determine the occurrence and abundance of the beet leafhopper in and near potato fields in the Columbia Basin and Yakima Valley.…”

Attributes of Bean Yellow Mosaic Potyvirus Transmission from Clover to Snap Beans by Four Species of Aphids (Homoptera: Aphididae)

“…BYMV is one of 86 viral species currently accepted as members of the genus Potyvirus, with 86 others tentatively accepted as members of this genus (van Regenmortel et al 2000). Robertson and Klostermeyer (1961) described the dissemination of bean viruses (including BYMV) in central Washington; the scope of their studies was broadened by Hampton (1967), Landis and Hagel (1969), and Hagel and Hampton (1970). By 1962, 21 aphid species had been reported as vectors of BYMV (Kennedy et al 1962), including the four species evaluated in this study.…”

“…; and low hop clover, Trifolium procumbens L. Common vetch, Vicia sativa L., is also a host of legume viruses, including BYMV, and volunteer plants are abundant in western Oregon. BYMV N has most often been associated with white, alsike, and subterranean clovers, whereas BYMV S is more often associated with red clover (Hampton 1967, Hagel andHampton 1970) and crimson clover (R.O.H., unpublished) in the PaciÞc Northwest. Zaumeyer and Thomas (1947) also considered white sweet clover, Melilotus albus Medikus, abundant in the PaciÞc Northwest, as an important host of BYMV S .…”