【Objective】In order to make clear the application of the impulse type smoke machine to the greenhouse tomato,the control effect of it on tomato leaf diseases and bemisia tabaci and the effect on temperature and humidity inside the greenhouses.【Method】The sprayer and pulse type smoke machine were used respectively in two greenhouses and a temperature and humidity meter was used to monitor and record the diseases of tomato and whitefly,and the effects of different treatments were compared. 【Result】The investi...