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Although fruit trees can't chat, like people, they will be affected by cold even when it rains, and it is very easy to have pests and diseases after rain, and it is very easy to have many pests and diseases after winter. Therefore, according to the weather conditions, it is the best policy to prevent risk management and control in advance and solve the disease in the germination. To put it simply, if you have a cold snap and you get a chill, maybe you can control it with a bowl of hot ginger syrup at home.
And once the cold evil invades inside.
If you have a fever and a cold and a lung infection, it may be that taking medicine and injections will not have any effect, and you must be hospitalized for infusion. Fertilizers are all medicinal, and it is unlikely that they will always be useful, after the safety interval, even if there are residues of chemical fertilizers, they will not cause adverse effects on the body, in other words, they can be ignored, everyone in the case of Apple picking, all of them have to pass the safety interval of the last chemical fertilizer, in fact, it is picked on the tree and everyone can eat it by simply cleaning up the floating ash, not to mention that it will take a while to pass through the hands of customers.
At different points in the growth and development of fruits, growers will spray different fertilizers, and the key purpose is to carry out the prevention of pests and diseases. Especially in the rainy summer season, pesticide spraying has become the norm, otherwise pests and diseases will soon occur. Today's customers have a high demand for fresh fruits, don't eat deformed fruits, don't want to eat them if they're not big, and don't eat them if they don't look good, so growers will always spray this apple company with a variety of fertilizers in the first time, how to improve their commercialization.
Apple production management mode is not the same, the quality will be different, in addition to the organic chemistry production and manufacturing standards to standardize the production management of the apple company, the application of chemical fertilizers in apple production at this stage is still quite extensive, especially in some of the main producing areas of the application of chemical pesticides has not been reduced, the application of high residue fertilizers has not been avoided, it is very easy to cause pesticide residues, not in line with the concept of innovative development.
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It must be pesticide used, so that the plant can better reproduce, and it must be cleaned, so as to avoid pesticide residues.
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The apples we usually eat have pesticides, but pesticides are a special medicine that we can wash with water a few times.
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Fruit farmers will definitely use pesticides when they are managed, but these pesticides have been metabolized, so there will not be a large number of pesticide residues, just wash them when eating.
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Pesticides are sprayed directly onto the surface of apples. At that time, there were many apple diseases, many insects, the number of spraying was also more, the effect of prevention and control was not good, and the quality of apples was difficult to guarantee. To eat an apple, you have to wash it several times with water before you can rest assured.
As. Since the fruit is ripe, the farmer has to pick the harvest to avoid losing the harvest. If such fruits are sold to customers, then there will naturally be customers who will eat fruits with pesticide residues, which will harm both others and themselves, in fact, there is no such chance.
Said that my fruit pesticide residues exceeded the standard. There is a national standard for pesticide residues in fruits, and only if they exceed the national standard will they cause harm to the human body. So I think pesticide residues as long as they don't exceed the national standard.
Generally there is no harm. Hope my question can help you. If you want to buy highly toxic pesticides, it's not easy to buy.
When spraying, the pesticide has been diluted, and it will be decomposed and oxidized by the sun when it stays on the fruit surface for a period of time, and the remaining pesticide to the stomach has no effect on us, unless it is eaten for a long time, it should have no effect.
With the improvement of the quality of living standards, people now pay more and more attention to health, and now the fruits and vegetables on the market are basically pesticide residues, and eating too much food with pesticide residues will have an impact on the human nervous system, especially the children who are in the development stage will be particularly affected. It is recommended that vegetables can be eaten raw, and those that can be peeled are peeled before eating. Lettuce and the like are better soaked in lightly salted water.
Wash the leeks with baking soda and soak them in water and rinse them 3 or 4 times to remove the residue is the most effective, which is also introduced on TV. Blanch other vegetables in boiling water after washing them for the best effect.
Fruits and vegetables are not carefully washed before eating, pesticides can not only kill pests, but also disrupt the human endocrine system, pesticide residues and plastic bags for packaging agricultural products will lead to an imbalance in human hormone levels and affect metabolism, therefore, fruits and vegetables must be carefully cleaned probably because soaking is an anaerobic state, which is conducive to improving the activity of nitrite reductase and reducing the activity of nitrite reductase, thereby increasing the content of nitrite in vegetables. In addition, prolonged soaking may also damage the leaves of vegetables, speeding up nutrient loss.
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If you want to wash the pesticides on the apples, then you should first soak the apples in clean water and soak them for a longer time.
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When eating apples, you should take care to peel off the skin. Although the peel is rich in nutrients, due to the widespread use of various pesticides by farmers during the growth period of apples, some pesticides must remain on the peel. Even apples that have been sprayed a little longer can still be toxic if the residual pesticides are still available.
Pesticides generally have a long residual life, some for several years or more than ten years. Pesticides left on apple peels are generally not washed away by rinsing them with water, so it is best to peel them. In order to reduce waste, you can blanch the washed apples in hot water, and then gently peel off the thin peel.
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Diseases and pests on apples are quite serious, such as red spiders, aphids and other pests, ring lines, brown spots, spotted defoliation, anthracnose, rot and other diseases.
Generally, insecticides such as avermectin, chlorpyrifos, and fenvalerate are mixed with fungicides and applied in a timely manner. Fungicides can be compounded with multibacterial, flusilazole, tebuconazole, thiophanate, etc. To the retailer will usually give a recommendation.
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Insecticides are sprayed with pesticides such as avermectin, imidacloprid, and larvaluric urea to control spider mites, aphids, leaf rollers, etc. Fungicides hit Bordeaux liquid, Dasheng, mycloconazole, etc., to prevent and ** defoliation, rot, brown spot and so on.
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Insecticides, bactericides, ripening agents.
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