番茄病毒病是番茄上发生最普遍、为害最严重的病害之一，也是最难防治的病害。发病田块一般减产２０％～３０％，重者可减产５０％以上。番茄病毒病还可使番茄品质下降，风味降低，严重影响经济效益，是番茄生产中的重大障碍。１田间主要症状１）花叶症状。叶片上出现黄绿相间 Tomato virus disease is one of the most common and most damaging diseases in tomato and also the most difficult disease to control. Field generally reduce the yield of 20% to 30%, in severe cases can cut more than 50%. Tomato virus disease can also reduce the quality of tomatoes, reduce flavor, seriously affecting the economic benefits, is a major obstacle in tomato production. 1 field the main symptoms 1) Mosaic symptoms. Yellow and green leaves appear on the phase