Update on the situation of citrus tristeza closterovirus in Mexico
In 1983, citrus tristeza closterovirus (EPPO A2 quarantine pest) was detected for the first time in Mexico, in Tamaulipas State. Further findings were then reported in 1986 in Veracruz State in experimental plots. In 1992 and 1993, nursery plants were found contaminated by citrus tristeza closterovirus in Veracruz State. An official campaign has been set up and includes restriction on the movement of plants from the contaminated areas, surveys of nurseries and orchards in different parts of the country, eradication of the disease, extension and information, support to research programmes. In April 1994, eradication of the disease in the 14 nurseries and two experimental plots situated in Veracruz was completed, and more than a million plants were burned. In 1995, further surveys were carried out in commercial orchards in the States of Colima, Nuevo León, San Luis Potosí, Quintana Roo and Veracruz (including nurseries also in this State) but results were not given in this paper.
Sources
Nieves Ordáz, F. (1996) Medidas fitosanitarias aplicadas a los citricos en Mexico (Parte 2 de 3).
Boletín Fitosanitario, no. 43, 6-7.