The greenhouse configuration will help determine the best choice of low-volume spray equipment. Match the pesticide to the equipment and pest .
Some pesticides are vapor active.
Some are systemic. For contact pesticides, where the pests reside on the plants will be a factor in control with some ULV sprayers. Some of the other sprayers seem to deposit most of the pesticide on upper surfaces. This can be important in control of pests such as whiteflies and spider mites - less important for aphids, thrips and leaf miners. Calculate the pesticide dosage correctly .