The "introduction of greenhouse pest safety prevention and control technology" project of Tianjin Agricultural Machinery Department passed the on-site acceptance of experts. The introduced glass greenhouse soil borne pest control machine produces 100 grams of ozone per hour and can generate about 10 tons of ozone water per hour, which is used to irrigate leeks and so on. Among them, the pest control effect of leek maggots in glass greenhouse can reach 80%, which can greatly reduce the use of pesticides.

According to relevant experts, another technology introduced by the "introduction of greenhouse pest safety prevention and control technology" project: electrolytic acidic functional water generated by electrogenic functional water generation equipment has good control effect on cucumber powdery mildew and tomato leaf mold, and the control effect has reached more than 70%. In the past, no matter controlling leek maggots or other vegetable diseases and insect pests, the control methods of spraying pesticides and biological agents were generally adopted. The control methods were single. Some vegetable farmers needed to spray pesticides many times to control diseases and insect pests, which would have a certain impact on the quality and safety of vegetables. The imported glass greenhouse ozone generator and electric functional equipment are physical means of pest control, have no impact on the quality of vegetables in glass greenhouse, and are easy to operate, which is very suitable for the prevention and control of vegetable pests and diseases in greenhouse.