Handheld selection of ultra low volume sprayer

To select a suitable spray method

For ultra-low-volume spraying requires the use of oil pesticide spraying diluted liquid or only several times,knapsack power sprayer spraying 0.3 liters less per acre, the droplet diameter of 60 microns to 90 microns. Low-volume spraying, the use of pesticide emulsions, and diluted with water several times first times, mu spraying liquid from 0.3 to 30 liters, the droplet diameter of 100 micrometers to 150 micrometers.

Select the appropriate wind speed, wind direction and air temperature

Usually in 2-3 spray when the wind is better. Operator should try walking direction perpendicular to the wind direction, and to the nozzle in the wind, so that the operator of pesticide droplets drifting away.

Master nozzle height

Oil pesticide use ultra low volume spray nozzle from the crop height is generally 0.8 to 1.2 m; choice for low-volume spray pesticide emulsion when the nozzle from the crop height of about 0.5 meters.

Select pesticides and pesticide use

To improve the effectiveness of pest control should be selected within the absorption dose pesticides and stomach poison pesticides and two pesticides used in combination. Pesticide use, with a low volume spraying,foam sprayer the amount of pesticide per acre generally administered 2000 ml can get better control effect.