TRANSMISSION OF THE STRAWBERRY MILD YELLOW EDGE AND STRAWBERRY CRINKLE VIRUS BY THE STRAWBERRY APHID CHAETOSIPHON FRAGAEFOLII
The occurrence of the strawberry mild yellow edge and strawberry crinkle virus in the Federal Republic of Germany was observed for the first time in 1974. In regard to the occurrence of the strawberry aphid Chaetosiphon fragaefolii in the Rhine area, transmission experiments were carried out in order to evaluate the risk of a natural spread of both viruses. The results obtained demonstrate that the isolates of the mild yellow edge and crinkle virus are transmitted by the strawberry aphid in all stages of development. However, the transmission efficiency of the vector is higher with the mild yellow edge than with the crinkle virus. The strawberry mild yellow edge isolate investigated seems to belong to a strain of the virus which is very readily transmitted by the strawberry aphid. For this reason a high risk for the spread of yellow edge exists in those areas of Germany where the strawberry aphid occurs.
Krczal, H. (1980). TRANSMISSION OF THE STRAWBERRY MILD YELLOW EDGE AND STRAWBERRY CRINKLE VIRUS BY THE STRAWBERRY APHID CHAETOSIPHON FRAGAEFOLII. Acta Hortic. 95, 23-30