How is the yellow leaf of tomato and roll leaf disease to return a responsibility? How to prevent and cure?

Consultation content: how is the yellow leaf of tomato and leaf roll disease to return a responsibility? How to prevent and cure? Answer content: Hello! Tomato yellow leaf and leaf roll disease: if the disease is accompanied by Bemisia Tabaci (small white moth), it is likely to be tomato yellow mosaic leaf curl virus disease (commonly known as TY virus disease). There are two ways to prevent and cure TY virus: 1. Plant disease-resistant varieties. For example, Zhe Fen 702 is a variety with good resistance to TY virus. two。 Thoroughly control Bemisia Tabaci. Bemisia Tabaci is the transmission agent of TY virus. If you wipe it out, the tomato will no longer suffer from the disease. Specific methods: 1. Cultivate insect-free (Bemisia Tabaci) seedlings and plant them in an insect-free greenhouse. Specific methods: ventilation vents and doors, covered with 60-mesh insect-proof screen. The yellow armyworm board was used to trap and kill adults and chemical pesticides were used to control Bemisia Tabaci. Applicable medicaments include: avermectin + paracetamol. Adult nymphs are wiped out together.