Planting in greenhouses is very common nowadays. Rural areas can be said to be flooded with greenhouses. In the short span of decades, greenhouse cultivation has spread to thousands of households. Many people rely on greenhouses to grow their families. But people who have used greenhouses know that it is very prone to pests and diseases. Why is this? How should we prevent greenhouse pests and diseases? Let's take a look at it.
Why are greenhouses susceptible to pests and diseases?
But the most important thing to do in greenhouse cultivation is to need technology, science, and not to do it. In reality, some people who see greenhouse vegetable cultivation make money, they want to get more. In fact, this is often lost. This is because greenhouse cultivation. The management technology requirements are very high, so the greenhouse is not the same as the open-air planting. It is a small climate place, and the environment inside has its own changing rules, such as high temperature and high humidity. For these characteristics, the production of pests and diseases is powerful, so greenhouse vegetables are prone to pests and diseases, even several times in open-air cultivation.
How to prevent pests and diseases in greenhouses?
The traditional management is costly, such as the occurrence of pests and diseases, the commonly used foliar spray prevention method, the drawback of this prevention method is the large amount of use, increase the humidity in the greenhouse, thus preventing and controlling the star, not only laborious, laborious, costly, It also reduces income and has a lot of pesticide residues. So how do you prevent pests and diseases in the greenhouse?
First, you can use aerosol
The characteristics of the aerosol are: small diameter, wide diffusion, uniform distribution, no increase in air humidity, thorough sterilization, safe use and low cost. At present, the aerosols on the market are fungicides, insecticides, and complex smokers.
In use, it should be used according to different pests and diseases. If there is downy mildew, black spot disease, gray mold, powdery mildew, etc., you can use chlorothalonil and scleroside mixture, but it is necessary to remind you to observe the disease in time. To prevent it in advance, the effect is more obvious.
Second, you can use dust
Dust is a direct spray of powder, which is much smaller than the common pesticide powder used by farmers. The advantage is that it stays in the air for a long time, the effect is regular, the control effect is good, and the air humidity in the greenhouse is not increased. When using it, it should be noted that the greenhouse per hectare is about 15 kg, which is applied every 7 to 10 days.
It is best to use it within 2 hours in the morning or when the sun is falling. Remember to use it during sun exposure. Of course, the drawback of this method is that it has certain safety. Therefore, farmers must wear long sleeves, wear masks, protective caps, etc. Measures.
The above is about the prevention and control measures for pests and diseases in greenhouse cultivation. Nowadays, the rural greenhouses are flooding, and the country is already renovating the rural greenhouses. Therefore, if you consider greenhouse cultivation, you must follow the relevant requirements.
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