Experiments on the transmission of the ‘stripe’ disease of the narcissus are described. It was found that the disease is not seed transmitted but that it is transmissible by grafting and by juice inoculation with the use of an abrasive such as carborundum powder. Under field conditions transmission of the disease takes place above ground and not through the roots. The identity of the vector has not been established. The effect of the disease in reducing bulb growth and vigour has been examined. Controlling the spread of the disease by roguing is recommen