How to control tomato wilt?

Symptoms: The disease mostly occurs in the flowering and fruiting period of tomatoes. The diseased stem has a concave area from bottom to top, which makes a leaf turn yellow, brown and die; Some half leaf sequences or half leaves turn yellow; When the diseased stem is cut, the vascular bundle turns brown. When the humidity is high, a pink mold layer is produced in the affected area. In the worst case, the whole plant will die.

Control methods: ① Select disease-resistant varieties. Such as Dongnong 708, Dongnong 7 10, Dongnong 7 12, Hazella R 144, 189, Bailey, etc. ② rotate. Rotation for more than 3 years can effectively avoid the occurrence of Fusarium wilt. ③ Chemical control. Spraying 50% carbendazim wettable powder 500 times at the initial stage of the disease. In addition, 10% shuangxiaoling aqueous solution can be used to irrigate the roots for 200 times, each plant 100 ml, once every 7 ~ 10 days and continuously for 3 ~ 4 times.