摘要 : This finding indicates the environmental variation and progressive disease development. In the present investigation, influence of environment indicates that the incidence of okra yellow vein mosaic was increased from 0.5% to 49.5... 展开 This finding indicates the environmental variation and progressive disease development. In the present investigation, influence of environment indicates that the incidence of okra yellow vein mosaic was increased from 0.5% to 49.5% during June to October. However, the number of whiteflies was highest in the month of August. This indicates that the infection took place in August and severity was expressed in last week of September and October. 收起