After entering the winter, even the cloudy days and haze days increase, and the low temperature, low illumination and humidity in the shed provide favorable environmental conditions for the occurrence of diseases. In the winter, the use of aerosols for pest control will not increase the humidity in the shed, but will be more comprehensive and will not leave dead ends. It will also save time and labor, and the cost of medication will be low. Therefore, many vegetable farmers will choose to use aerosols in winter. To prevent and treat pests. In order to achieve the best use of aerosols, it is recommended that vegetable farmers pay attention to the following points:
Prevent medications in advance
The use of aerosols to prevent disease should be used early in the disease to control the disease. For example, in the early stages of the onset of gray mold, which is common in the winter, the amount of spores of pathogens is relatively small. At this time, the spores of pathogens can generally be controlled at a relatively low level, so as to avoid serious occurrence of gray mold in the future. In the initial stage of insect pests, medications are used. At this time, the pests have poor resistance to the drugs and the amount of occurrence is small, which facilitates control.
Choose the right time to use medication
Aerosols are best chosen for use in the evening or on cloudy days. This is because under sunlight, smoke is not easily deposited and affects efficacy. The aerosol agent uses the smoke as the carrier to achieve the purpose of medicine. Therefore, before using the smoke agent in the greenhouse, it is necessary to check the surface of the shed, make up the loopholes, and make the shed face close and tight. The effect of prevention and control is good. In addition, when vegetables grow weak, it is best not to use or reduce the use of aerosols to prevent phytotoxicity.
Safe medication details can not be less
When placing aerosols, it is important to take care that the chemicals are not close to vegetables, and to avoid excessive exposure of the plants to chemicals when they are discharged, causing phytotoxicity. The humidity in the shed is high when there is even a cloudy day, and it is best to place the medicine on a dry floor to prevent it from affecting the smoke effect. After all the smoke has been ignited, the vegetable farmer immediately leaves the shed and quickly closes the shed. Smoke time can not be too long, the normal smoke time is generally about 8 to 10 hours.
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1. Indoor devices: such as speakers, sockets, chargers, lamps, picture frames. The micro camera is ingeniously placed in these objects, so as to monitor the home environment and protect the personal and property safety in the home.
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Distinguish from functions:
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