How can I prevent and control diseases without pesticides when growing vegetables?

Preface: When planting vegetables, one of the most troublesome things is the appearance of pests and diseases, which have a great impact on the yield of vegetables and directly affect the economic income of farmers. In order to control pests and diseases, many people will spray pesticides, but pesticides will have a certain impact on the growth of vegetables.

Leeks are a very common vegetable, if you want to control pests and diseases, we can mash leeks, take out the branches and leaves of leeks, and then add neutral laundry detergent, mix with a bucket of water, and spray on the vegetables. At the same time, the juice of leeks will not change the taste of vegetables, and it also has a certain effect of controlling pests, because the juice of leeks is stuck by laundry detergent, which can increase the effect of use. However, this method is more suitable for young leaves of vegetables that are damaged by aphids and red spiders.

It is recommended that we do not spray pesticides when planting vegetables, although pesticides have been decomposed in the process of cooking, but there are still some residues on vegetables, if eaten directly, it will have a great impact on the human body. You can find the seedlings with more insects at night, and then put a plastic bag on the ground to start beating the seedlings, let the insects fall on the plastic bag, collect about 200 grams, mash them, mix them with a bucket of water, and spray them. <>

Many people want to grow vegetables, but they are busy with work and do not have time to manage these vegetables well. It is suggested that we can increase the frequency of going to the vegetable field, manage these vegetables more, and if we find pests, remove the young leaves that have been eaten by pests in time. If it really doesn't work, we'd better choose pesticides with lower toxicity, and choose reasonable pesticides according to the nature of vegetables to achieve the best control effect.

It is best to soak it in salted water when washing vegetables, which can sterilize.

When planting vegetables, it is also necessary to spray some farm fertilizer on the roots, and it is also necessary to weed to prevent diseases.

When planting vegetables, the control of pests and diseases must be divided into three aspects, biological control, chemical control, physical control, and you can also prepare your own insecticides, and the effect is also different. The grown greens are covered with insect nets, which can also achieve the effect of control.

The main reason for plant disease is that there are conditions suitable for the occurrence of disease in the process of plant growth, such as poor plant growth, poor stress resistance, humid plant growth environment, and various reasons such as pathogens hiding on soil or plants.

For this kind of situation, in addition to making the plant nutrient balance, soil roots to improve the plant's ability to resist stress, you can use the foliar spray fungus fertilizer method to reduce the occurrence of disease, of course, it is not a fungus fertilizer, here to recommend two models, one is a fungus fertilizer made of em bacteria, through foliar spraying can reduce the occurrence of plant diseases, the other is a selenium-rich fertilizer containing biological selenium, this kind of fungus fertilizer not only improves the plant disease resistance effect is better, but also can improve the quality and taste of the fruit, Contributes to the production of selenium-rich fruits.

For biological control of plant diseases, it is a better way to help improve plant growth and quality, and there is no pesticide residue, and the use is more assured, but this kind of method can only be based on prevention, once the disease occurs, it will not work, but if the disease occurs very serious, it is recommended that you add organic fluorine anti-resistance additives when spraying to solve the disease resistance and improve the effect of spraying.

Pesticides can be used, so that pests can be prevented, and often** food growth conditions, so that diseases can be avoided.

You can control the temperature, or control the planting situation, or you can understand the factors that prevent insect pests, and then eliminate insect pests.

You can choose lime water, you can also choose potassium permanganate solution, you can use brown sugar and rice vinegar to stir, tea seed cake water to remove insects, pepper water, onion water and so on.

We can use a variety of vegetable interval planting methods, so that it can have the effect of insect repellent, is a good physical pest control method, you can also use the plant ash precipitation liquid spray control, or directly sprinkle the plant ash on the leaves, in addition to the use of daily things at home to synthesize spraying liquid, such as washing powder, urea and water in the ratio of 1:4:400 diluted, stir evenly, spray on the vegetable leaf surface can control large green worms, aphids and other insect pests.

You can use garlic juice, plant ash, vinegar, olive oil to solve the problem, and choose the right thing according to the actual situation of the plant.

When spraying pesticides, we must pay attention to the number of times, do not spray too much, and when spraying pesticides, we must pay attention to safety issues, do not let ourselves be injured, and when spraying pesticides, we must pay attention to the problem of noisy time, do not spray pesticides at night in Qichang, but I think the most important point is that when spraying pesticides, we must bring the corresponding appliances.

Be sure to inject the density of the pesticide circle, pay attention to the variety of pesticides, pay attention to the ratio, pay attention to the spraying time, pay attention to the growth of plants, and choose the appropriate or state pesticides for treatment.

Attention should be paid to the conditions of drug selection, the standard of medication, the dilution of drugs, the problem of pesticide residues, and the temperature conditions.

The eight kinds of vegetables that do not use pesticides are leeks, potatoes, carrots, chrysanthemum, corn, celery, coriander, bitter chrysanthemum, and so on.

1. Leeks. <>

2. Potatoes. Speaking of potatoes, everyone should know that this is also a very common vegetable, its scientific name is potato, in France, potatoes are even called "underground apples", in the coastal mountains of Chile, it is even the main local food **, this vegetable, is basically free of pesticides.

3. Carrots.

Carrots are also called carrots, and only a few households in the village grow them, and when the carrots are ripe, they will always secretly pull a few of them, wash them, and eat them directly. This thing is buried in the soil, and it basically does not use pesticides.

4. Artemisia chrysanthemum. Artemisia chrysanthemum, formerly known as the "Emperor's Dish", refers to the fact that this dish used to be reserved for the royal family, but now it has become a home-cooked vegetable. This vegetable is also basically free of pesticides.

5. Corn. Recently, it is the season when corn is on the market in large quantities, corn is very delicious, sweet taste, adults and children love to eat, and it also belongs to coarse grain corn in addition to being directly boiled and eaten, you can also use it to cook dishes, poke the corn from the middle with small scissors, peel it into small corn kernels, blanch it after cleaning, and then put it in the refrigerator for storage, which is very time-saving.

6. Celery. Celery, divided into cress, celery, celery, this is a kind of vegetables that often appear on the table, it has a strong aroma, special taste of potatoes, and rarely provokes pests, pesticides are less.

7. Coriander. Coriander is also called coriander loss brother, this is a very common vegetable dish, whenever the autumn and winter eat hot pot, many people like to scald some coriander in the hot pot, the taste is very good, this vegetable because it has a special aromatic smell, pests rarely provoke it, so it is rarely pesticides.

8. Bitter chrysanthemum. Bitter chrysanthemum is a common vegetable in spring and summer, which can be fried and eaten, or eaten cold, and this vegetable is rarely pesticides.