However, the bacterium was isolated from Solanum dulcamara growing in the water system from which the infected potatoes were irrigated. |
Race 3 may be spread more easily with surface water when infected S. dulcamara grows with its roots floating in water. |
The species usually called nightshade in North America and the United Kingdom is S. dulcamara, also known as bittersweet and woody nightshade. |
Non-wilting S. dulcamara plants growing with stems and roots in water may show internal light brown discolouration of vascular tissues on transverse section of the stem base or underwater stem parts. |
Studies are also being carried on the possibilities for eradicating Solanum dulcamara from watercourse banks. |
A monitoring programme was implemented on potatoes and Solanum dulcamara, and during the last four years the bacterium was not found again. |