儿菜是四川省稻菜种植模式下的经济作物之一,因其生长时间短、产量高、见效快,在全省种植面积较大。由于栽培模式变化和蔬菜重茬等诸多原因,近年来儿菜病毒病发生加重,发病率一般在5%~15%,严重田块可达到80%以上,一般损失5%~10%,重者损失80%以上,部分田块甚至出现绝收。为更好地防治儿菜病毒病并减少损失,笔者就儿 Pedigree is one of the cash crops under the rice planting mode in Sichuan Province. Because of its short growth time, high output and quick response, it has a large planting area in the province. In recent years, the occurrence of pedigree virus diseases has been aggravating in recent years due to many factors such as changes in cultivation patterns and vegetable stubble. The incidence rate is generally 5% to 15%. In severe fields, it can reach more than 80%, with a general loss of 5% to 10% 80% or more, some fields even appeared absolutely yield. In order to better prevent pedigree virus disease and reduce losses, I author