Abstract
Publisher Summary This chapter discusses the biology of soil-borne plant viruses. It lists and discusses the plant viruses that are found to be soil-borne. The viruses within each group, although presumably not related strains, have many common attributes. The modes of transmission of soil-borne viruses are discussed in the chapter. The transmission of no soil-borne virus has yet been elucidated in detail, but there is evidence that soil-inhabiting organisms transmit some. A thorough knowledge of the ecology of a disease and of its causal agent ideally should lead to the formulation of effective control measures. But only a small part of this information is available for soil-borne viruses and many of the control measures used are empirical. These measures comprise methods of preventing the introduction of viruses to new sites and of combating the viruses where they are already established. The chapter discusses the control measures on infested land that are of four types, all traditionally used to control soil-borne plant pathogens: crop hygiene, rotation of crops, soil treatment, and the use of disease-escaping varieties.
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