Abstract
The Texas sugar beet-growing area was surveyed to determine the incidence of beet necrotic yellow vein virus (BNYVV), beet distortion mosaic virus (BDMV), and an unnamed soilborne sugar beet virus designated as Texas 7 (Tx7). In late 1990, 302 soil samples were collected from seven Texas counties and one New Mexico county from fields scheduled for 1991 production. Sugar beet seed was planted in the soil samples, and root tissue was later harvested and tested by ELISA. Of 174 soil samples screened for BNYVV, 19 were positive. Of 128 samples tested for BNYVV and Tx7, 12 were positive for Tx7, three were positive for BNYVV, and 23 were positive for both BNYVV and Tx7 [...]
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