Two cereal virus diseases in Finland

Authors

• Katri Ikäheimo Agricultural Research Centre, Department of Plant Pathology, Tikkurila

DOI: https://doi.org/10.23986/afsci.71537

Abstract

In many regions in Finland damage to oats and to other spring cereals has been discovered at various times, and various views have been expressed as to the cause of this damage. In order to determine the virus diseases which were thought to take part in this damage, diseased plants and vector insects were collected from South and West Finland. The results of the experiments made with Rhopalosiphon padi L. indicated that it transmits a virus disease. On the basis of its symptoms, incubation time and vector, the disease was identified as cereal yellow dwarf. The results of the experiments made with Galligypona pellucida Fabr. indicated that it transmits a virus disease. On the basis of its symptoms, incubation time and vector, the disease was identified as European wheat striate mosaic.