Using aerosols to control greenhouse pests and diseases

Aerosols are a new technology for controlling pests and diseases in greenhouses. It is condensed into smoke particles by gasification of pesticides or directly disperses pesticides into smoke particles to prevent disease and eliminate pests. The control effect is obvious, which is superior to the control effect of spraying and powder spraying. However, the method of use is not good, and it does not receive good results. Therefore, the following technical measures must be mastered in the process of using aerosols.
Strictly sealed in the greenhouse to check the shed surface before using the aerosol, to make up the loopholes. The shed surface is closed tightly, and the stricter the control effect, the better.
Medication time It is advisable to ignite with the aerosol time in the evening. It is best to ignite the aerosols in the cloudy and snowy evenings. This is because under the sunlight, the surface temperature of the plant is the same as the temperature of the smoke particles, and the smoke is not easy to deposit and affects the efficacy.
Medication method Place the aerosols in the greenhouse to be evenly spaced. When burning, in the greenhouse from the inside to the outside, in order to ignite, and finally ignite the aerosols exported from the greenhouse, to be ignited with a dark fire. After all the lights, people have to leave the scene and close the greenhouse for the night. The next morning, the sheds were all ventilated, and people were allowed to enter the shed after the ventilation was over.
The dosage should be determined according to the size of the greenhouse, the degree of pests and diseases, and the effective content of the aerosol. In general, 30% chlorothalonil aerosol, 10% serotonin aerosol and 22% dichlorvos aerosol are used in an amount of 0.3-0.4 grams per cubic meter. If the pests are severe or the greenhouse is poorly enclosed, the amount can be increased appropriately. Generally, it is applied once every 7-10 days, and 2-3 times can be used for good results.
Safe storage The aerosol is flammable and easy to absorb moisture. Use the remaining aerosol to be placed in a safe place, protected from fire and moisture. Once damp, do not bake with fire, should be placed in a cool, ventilated place to dry slowly.
Source: Farmers Daily
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