​If you spray the medicine inside a closed greenhouse, there is actually no difference between the operation effect of the mist sprayer and the spray pump. However, it is necessary to pay attention to the safety of the pesticide application and take good protection, especially the protection of the mouth, nose and eyes, to avoid any poisoning safety accidents.

The fog machine has been used for a long time. It has gone through many years from the initial low-pressure mist dispersing machine to the current high-pressure mist dispersing machine. The biggest feature of the mist disperser is that it has a good atomization effect, and a certain amount of wind will be generated with the spray of the liquid medicine, which can better allow the sprayed spray droplets to adhere to the front and back of the crop leaves. Due to the small diameter of the atomized droplets, it is also more conducive to the absorption of the medicament by the crop leaves. Especially the more common high-pressure mist dispersing machine on the market now has a higher injection pressure and a better operation effect. Moreover, in the case of the operation of the mist disperser, due to the relatively small water consumption, the corresponding dosage of the medicine will also be reduced to a certain extent. However, the sprayed medicament concentration is also higher than the sprayed medicament concentration of conventional sprayers. Therefore, when working under high temperature conditions, it is necessary to reduce the dosage to avoid critical situations.

The spray pump has two types: electric drive and gasoline engine drive. The booster pump is driven by a motor or a gasoline engine to spray the medicament in the tank into small droplets under high pressure. The atomization effect and application effect of the spray pump is actually the same as that of the mist disperser. However, because the spraying pump can drive the medicine in a plastic tube that is tens of meters long, the atomization effect of the medicine will not be affected, and the physical exertion and work load of the operator will be much smaller. Moreover, compared with the mist sprayer, the service life of the spray pump is longer. In some local development offices, it is also very good to install multiple equal-distance nozzles and hang balloons on plastic pipes of several tens of meters to improve work efficiency.