Susceptibility of Tobacco Plant to the Virus Diseases of the Crops and Weeds

Abstract

The viruses of 49 species of agricultural crops and weeds were inoculated on the “Bright yellow” tobacco plant by rubbing the leaf with emery, and 15 species among them were proved to be able to infect it. The severest symptoms was observed on it when infected with the virus from tomato, potato, indian corn, radish, cucumber, Clerodendron trichotomum or Commelina bengalensis.
In view of these results it may be considered that certain crops and weeds growing in or near tobacco field can carry the virus disease to the tobacco plant. The eradication of such wild host plants may be very important in controlling the virus disease of tobacco plant.