TY - JOUR
AU1 - Taylor, C. E.
AB - PANS Vol. 18 No. 3, September 1972 269 C. E. TAYLOR Scottish Horticultural Research Institute, lnvergowrie, Dundee, DD2 5DA, Scotland. Introduction The idea of soil being a source of infection pre-dates Beijerinck's (1898) conception of a 'contagium vivum fluidum' which is generally accepted as the birth of the science of virology. Rathay in 1882 observed that healthy grape-vines became diseased when planted on soils of old vineyards suffering degeneration, although it was not until 1929 that Petrie suggested that the disease, called arricciamento, was caused by a virus. This virus, now called grape-vine fanleaf, was the first soil-borne plant virus shown to have a nematode, X$hinema index, as a vector (Hewitt eta/., 1958). This discovery in California stimulated the search for nematode vectors of other soil-borne viruses that cause important diseases in a great variety of crops in many parts of the world. Only species of the dorylaimoid genera Xiphinema, Longidorus and Trichodorus have thus far been implicated as vectors (Table 1). The appearance of a patch or patches of diseased plants in a crop is often the first indication of the exist- In perennial crops these usually appear two to three years after ence of nematode-transmitted virus infection. 
TI - Nematode Transmission of Plant Viruses
JF - PANS Pest Articles & News Summaries
DO - 10.1080/09670877209411803
DA - 1972-09-01
UR - https://www.deepdyve.com/lp/taylor-francis/nematode-transmission-of-plant-viruses-0m30iOtGWB
SP - 269
EP - 282
VL - 18
IS - 3
DP - DeepDyve
ER -