Spraying method is the most common method of application

Common methods of pesticide application spray, spray method, applicator method, poured France, drop casting, injection, painting method, dipping method, dressing method, bait method, fumigation, and a dozen.

Spraying method is the most common method of application, that a certain amount of pesticide with an appropriate amount of water dubbed liquid, spraying the liquid spray apparatus into droplets. This method is suitable for cream, liquid, wettable powders, soluble powders, and flowable agent pesticide formulations, both for foliar treatment, but also do soil treatment.

First, a spray method used

According to the amount of liquid per acre spray, spray mist often divided into high-volume, medium volume spraying, low volume spraying, low volume spraying and ULV other categories.

1. High-capacity spray

Coarse spray, also known as high-volume spray, they use a knapsack sprayer type 16 and 36 type motor sprayer spraying, spraying liquid volume per acre more than 40 liters, mostly for 50-75 liters, pesticides, diluted with water, liquid concentration is less than 1000ppm, median droplet diameter of 400 to 1000 microns, a specific spray method. Suitable for high-volume spray water rich agricultural areas and control of plant pests base for soil treatment control weeds, pests on foliage and has a good control effect, but prone to bouncing droplet, rolled leaves, pesticide loss of more that cause soil and water pollution.

2. In the capacity of the spray volume spray, also known as the constant spray, is the use of 16 workers and peasants backpack sprayer and 552 - Hepatitis shoulder-mount sprayer spraying, the spray nozzle aperture diameter of 1.3 to 1.6 mm, the liquid diluted with water , the concentration of 1000ppm or more per acre spray volume in 12.5 to 50 liters, a median droplet diameter of 250 to 400 microns, is a targeted spray. Volume spray is also used in many water areas, pesticide spraying high capacity utilization ratio.

3. Low-volume spray

Low-volume spray, also known as fine spray or mist. With 16 workers and peasants and 552 - Hepatitis sprayers, sprinklers spray containing 0.7 to 1.0 mm aperture diameter for fine spray. DFH type 18 with the use of high-speed air motor sprayer spraying the liquid into the fog often called Mist. Low volume spraying diluted with water and a 0.8% solution concentration to 3% of liquid per acre spray volume from 2.5 to 12.5 liters, a median droplet diameter of 150 to 250 microns, a specific spray and fruit tree sprayer spray drift of the phase combined spray method, to avoid large droplets produced by bouncing rolling phenomenon, and droplet dispersion among the plants, able to achieve an effective pest control droplet coverage density standards. And through plant uptake of pesticides, as well as the plant itself breathing infiltration, transpiration, spit water and other physiological functions, so that pesticides play a role in redistribution. Low-volume foliar spray for control crop pests and diseases, with good control effect, saving pesticide advantages, but not for chemical weed control. Because pesticide use higher concentrations of highly toxic pesticide spraying can not use this method.