Abstract
This paper reviews the plant viruses and virus vectors that have been detected in agricultural and horticultural crop plants and some weeds in Finland. The historical and current importance of virus diseases and the methods used for controlling them in cereals, potato, berry plants, fruit trees, ornamental plants and vegetables are discussed. Plant viruses have been intensely studied in Finland over 40 years. Up to date, 44 plant virus species have been detected, and many tentatively identified viruses are also reported. Control of many virus diseases has been significantly improved. This has been achieved mainly through changes in cropping systems, production of healthy seed potatoes and healthy stocks of berry plants, fruit trees and ornamental plants in the institutes set up for such production, and improved hygiene. At the present, barley yellow dwarf luteovirus, potato Y potyvirus and potato mop-top furovirus are considred to be economically the most harmful plant viruses in Finland.
Highlights
The historical and current importance of virus diseases and the methods used for controlling them in cereals, potato, berry plants, fruit trees, ornamental plants and vegetables are discussed
We summarize a few important milestones in plant virus research in Finland, and examine the historical and current significance of viruses and their control in crops grown in this country
The severe disease that affected oats growing at the coast of the Gulf of Bothnia in the 1950 (Jamalainen 1957) was shown to be caused by oat sterile dwarf virus (OSDV) transmitted by leafhoppers in a persistent manner
Summary
This paper reviews the plant viruses and virus vectors that have been detected in agricultural and horticultural crop plants and some weeds in Finland. Control of many virus diseases has been significantly improved This has been achieved mainly through changes in cropping systems, production of healthy seed potatoes and healthy stocks of berry plants, fruit trees and ornamental plants in the institutes set up for such production, and improved hygiene. This review lists the viruses and their vectors detected in agricultural and horticultural crop plants in Finland. We summarize a few important milestones in plant virus research in Finland, and examine the historical and current significance of viruses and their control in crops grown in this country
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