DIAGNOSIS AND CONTROL OF ALLIUM VIRUS DISEASES IN VICTORIA, AUSTRALIA
A number of virus diseases have been identified in garlic and leek crops in Victoria. In garlic, the three most common viruses identified are garlic yellow streak potyvirus, onion yellow dwarf potyvirus, and garlic latent carlavirus. A mixture of these viruses was purified and a polyvalent antiserum was produced. The antiserum was used to develop an ELISA which was used in conjunction with other conventional tests to rigorously index for viruses in tissue cultured plantlets produced following heat treatment and meristem tip culture. Plantlets that indexed negative for all known viruses of garlic formed the basis of a high health scheme that provides virus-tested material to industry. In leek, the only virus problem identified in Australia to date is leek yellow stripe potyvirus. The virus has caused disease problems in crops where cultural practices facilitate the spread of the virus from infected to healthy plants. Control has been achieved through stringent hygiene measures adopted as part of the cultural practices.
Sward, R.J. and Brennan, A.P. (1994). DIAGNOSIS AND CONTROL OF ALLIUM VIRUS DISEASES IN VICTORIA, AUSTRALIA. Acta Hortic. 358, 295-298