There is a skill in planting vegetables and spraying, how to spray to effectively prevent pesticide

What do I do if I have vegetables, I have five to five medications? It's a matter of growing, and the vegetables are very good. How did I become so sensitive to a drug that exists in reverse.

I wanted to use medicinal fats to promote plant growth and prevent diseases, but I didn't expect it to harm plants. After the drug, only a few hours, some are veneers on the edge of the blade, some are the top of the inhibition plant. There is also some fat, all the blades are dry, and the loss is not small.

When fighting a disease, pesticides are always avoided, and drugs are usually frequent and frequent. Most drugs are caused by excessive doses, such as mixing several reagents, and during preparation, the stirring is uneven, some concentrations are large, and the plant is prone to the occurrence of drugs.

Is there a good remedy when medication is available? When the plant has a drug or fat, it can be sprayed with eosinophilic glycerol protein or layed, then glucose, urea, mixed spray, and used according to the described concentration to alleviate the drug and promote the growth of the plant.

Also, how can we avoid the occurrence of drugs when using pesticides? This is also a very critical issue.

Now we are in medicine, it is usually mixed with several agents or fertilizers. In this case, the reagent and fertilizer should be diluted separately, then mixed, and sequenced in the mixture. Usually, it is a fertilizer that completely dissolves the lens, such as dihydrogen phosphate, potassium nitrate, and must be completely dissolved when dissolved.

After the fertilizer is diluted, the insecticide or fungicide is then dissolved. Some farmers use compounds directly, some usually use, but in order to maintain the efficacy, in the mix, there are no more than three drug species in general. Therefore, farmers should pay attention to the ingredients contained in the pre-use medicine.

When formulating, pay attention to the solution of the farmer, preferably formulated according to the description. Some farmers say that there is no damage to the drug when prepared at low concentrations, but the effect is poor, so it will increase the amount. When making medicines, it is necessary to improve the effect of the drug, but also pay attention to spraying, for example, in winter sheds, high humidity, preferably in the morning temperature.

Sunny days are high in the morning, suitable for the growth of vegetables, absorb quickly, do not increase the humidity of the shed, and the preventive effect is also very good.

During the cultivation of vegetables, medicine does exist, but it is not a realistic reality. We should pay attention to the first and several agents, preferably separated after dilution. Second, to improve the efficacy, blind dosage is not a good way, pay attention to the method and time of medicine.

Thirdly, when there is a drug, it is necessary to reduce it in time.

Before spraying, clean up diseased leaves, branches, fruits, and plants, and bring them out for burning or burial. Choose hot weather for spraying. Choose the right pesticide and disease prevention agent, prescribe the right medicine, understand the instructions and functions of the drug, rotate the agent, prescribe the insect, take into account the killing of adult insects, egg killing, and rotation of drugs.

When spraying, focus on the back of the leaf, the fruit, the flower, the base of the stem and other parts.

It is not necessary to apply the pesticide to the leaves and rhizomes of the plant, but the most important thing is to hit the soil, so that pests will not breed. There is no way for those eggs to survive.

According to the temperature and its change trend, the spraying time is determined, and the air humidity is slightly dry; After spraying, the liquid can form a dry film on the surface of the target before sunset.

There is a skill in planting vegetables and spraying, I will tell you how to spray pesticides to effectively prevent pesticide damage, first, loosen the soil under the vegetables, and then spray pesticides, second, spray pesticides on the leaves of vegetables, spray them evenly, and then irrigate with clean water, so as to prevent pesticide damage.

First of all, it must be targeted, you can't say self-righteous, you still have to find someone with experience and understanding to do it. Secondly, the more the better, or even the less, the better, otherwise it will be harmful to the body, and it will also increase the resistance, so that it has no effect. Finally, try to choose a good time, do not hit before the rain, and control the amount of each time, so as not to cause soil pollution.

After the planting site is tidied up, directly plant garlic or leeks, after the young leaves grow, use human urine to match the appropriate amount of water to drench garlic or leeks, sprinkle plant ash on the compartment to control pests and diseases, or soak the plant ash with water, and spray the leaves with appropriate water to prevent pests and diseases. The fields are treated with pesticides and fungicides before vegetables are planted, and then ploughed with a torla. Basic soil pest control is good.

<> is to use pesticides to kill insects, which is harmful to the body, and some people choose to plant their own, but there are too many pests or the roots rot and die. How to grow healthy vegetables without pesticides There are two ways to plant vegetables, farmhouse fertilizer is indispensable, put some laundry detergent solution in farmhouse fertilizer has very strong adhesion, wettability and spreadability, after spraying on the pest, not only can make the winged pest's wing adhesion unable to fly and move, and the laundry detergent solution can quickly spread to the surface of the insect body, and form a layer of impermeability.

Regarding the prevention and control of vegetable diseases and pests, Chengdu New Chaoyang has launched a special "flower, fruit, and high-yield green prevention special **" for fruits and vegetables to help everyone produce high-quality, safe and high-quality agricultural products to increase production and income. 5 kg of peach tree, 100 grams of lime, soak in 3 times of water for 5 hours, squeeze the peach leaves dry and remove the slag, add 10 kg of water per kilogram, spray, can control cotton aphid, corn borer, rice insects. It can also be boiled with peach leaves and filtered.

Before planting, the soil is deeply turned to improve air permeability, and at the same time, comprehensive disinfection is carried out to eliminate possible pathogenic bacteria. In the process of management, according to the types and characteristics of vegetables planted scientifically, try to use organic fertilizer or a more general problem. Different vegetables, different seasons, different environments, different pest control measures are different.

It's hard to be specific. However, one thing is the same, prevention is the main thing, and treatment is the secondary. In early spring, the dead branches, fallen leaves, weeds, and bad fruits in the greenhouse or in the open field are cleaned up and manure or buried deep to eliminate the overwintering adults or nymphs and reduce pathogens.

In addition, at the appropriate time, remove the lesions on the branches of fruit trees and the pathogens remaining in the cracks.

In the early stage of the disease and before the need to spray, it is necessary to find the center of the disease, remove the central disease plant in time, and take away, bury deeply, dry, burn and spray the drug to prevent the spread of the disease; Insect control, the whole process of vegetable production can be hung yellow plate + sexual attractant to trap and kill, and the prevention and control of insect pests can be placed, sprinkled or sprayed with drugs to kill.

First of all, when spraying pesticides, we should dilute the pesticides, and secondly, we should also spray as little as possible with the center of the vegetables, and also spray the bottom of the vegetables.

It is necessary to make reasonable arrangements according to the specific situation of vegetables, so that it can be carried out preventively and will not be used indiscriminately.

According to the law of harm caused by pests and diseases, we should strictly grasp the best control time for vegetables and use drugs in a timely manner. For example, before sowing and transplanting vegetables, measures such as pesticide disinfection, soil treatment and mixing must be taken in seedbeds and sheds; When aphids, mite spots, and low-density lice appear, topical medication is used. It is usually used in the morning, in the afternoon in the summer, and before watering.

Under the condition of high temperature, sulfur preparations are prone to pesticide damage to tea mites and powdery mildew in melon vegetables, and there are differences in drug resistance in different vegetable types, varieties and growth stages. According to the toxicity of pesticides and the occurrence of pests and diseases, combined with the climate and seedling conditions, we should strictly control the dosage and concentration of pesticides, prevent vegetable pesticide damage and harm to natural enemies, and control pests and diseases below the level of economic harm.

Depending on the type of pest and disease, the appropriate time for medication is also different. Different types of pests and diseases, the onset time of infection is also different, and the time of medication is also different. Especially in pest control, it is necessary to flexibly adjust according to the activity of the pest.

For example, ground tigers, thrips and other pests are accustomed to feeding at night, and vegetable farmers choose to spray in the evening to ensure the efficacy; Bemisi tabaci and aphids mainly eat in the morning, and the effect of medication in the morning is good.

The humidity and dew in the greenhouse at night are the main period of disease invasion. Especially on cloudy days, we should pay attention to disease prevention. You can't stop spraying just because it's raining.

On cloudy days, as long as proper ventilation can be ensured, it can be properly sprayed to prevent diseases. When the outdoor temperature is low and ventilation is not possible, vegetable farmers may further increase the humidity in the shed, increasing the probability of disease. Products such as pesticides, dust agents, or air sanitizers can also be selected.

It has the effect of sterilization and insect control, and does not increase the humidity in the shelves. On the basis of a full understanding of the performance and use of pesticides, according to the type of pests and diseases, use appropriate pesticide types or dosage forms. When ibuprofen is effective against lice nymphs and not against aphids, pests of the same species; The resistance to aphid is effective against peach aphid, but the control effect of melon aphid is poor; Methyl frost is highly effective against all kinds of vegetable downy mildew, early blight, late blight, etc., but it has no effect on the prevention and control of powdery mildew.

After spraying for a period of time, observe the growth of vegetables, you will know the effect of spraying, and the correct way to spray vegetables is to spray on the roots, not on the leaves.

It can be sprayed when there is not much rain. This allows you to precipitate the potion and also increase your energy. So, just look at the weather forecast and spray.

When growing vegetables, insect pests are one of the important factors that hinder the normal growth of vegetables. If the vegetables are infested, the vegetables will not look good. Therefore, many vegetable farmers will spray pesticides to prevent insects, so what are the skills in it?

1. Tips for preventing aphids and leaf-eating pests.

Vegetable farmers should know about aphids and leaf-eating pests, they are very fond of eating young leaves of vegetables, and they also like to suck vegetable juice, they mainly concentrate on the back of vegetable juice or on the young branches. To deal with these two types of pests, you should use the way of drawing circles and dots to spray, that is, put a leaf of a plant on the nozzle of the sprayer to spray a circle, and then spray it on the tender head, so that the plant and the insect body can all come into contact with the agent, and have a better control effect. There are also some insects that they like to come out at night, so they can spray at night and not during the day, because they will not come out during the day.

2. Spray pesticides according to the growth characteristics of the host.

We all know that the growth characteristics of every plant are different, some plants like to grow during the day and bloom during the day, but some plants like to grow at night and bloom at night. For example, in the summer, the loofah blooms after 7 a.m., after which the petals are all closed. But the parasites of the loofah are all inside the petals, so pesticides should be sprayed when it is in bloom.

In this way, it can effectively play a role in preventing pests and diseases. It is best to spray pesticides at 9 a.m. so that the parasite can come into full contact with the agent and die.

3. Summary. Therefore, do not underestimate the process of spraying pesticides, although vegetable farmers spray pesticides very simply, but they have mastered the laws of parasites and plant growth, so they can spray pesticides at the most effective time, in order to effectively prevent pests and diseases. So if you spray pesticides at the right time, then you can kill the parasites, and if you spray pesticides at the wrong time, even if you spray more pesticides, the parasites will be able to escape.

The best way to do this is to pay attention to physical insect protection measures. Try to have a ventilated environment, pay attention to drainage and irrigation, avoid stagnant water in the field, apply fertilizer properly and use pesticides.

At this time, it is necessary to choose the right pesticide, and then when spraying pesticides, we must choose the right way, we must pay attention to the right distance and the right density, and then do not spray pesticides during the peak period, and pay attention to the appropriate type and dosage.

First of all, we must choose the right pesticide, but also should pay attention to the proportion and dosage of pesticides, we must pay attention to the properties of pesticides, and then prescribe the right medicine, pay attention to the amount of pesticides sprayed, should avoid rainy or windy weather spraying, spraying pesticides should also pay attention to protect themselves, do not spray on the **, should wear protective clothing.

The skills of vegetable spraying to prevent pests are as follows: install an insect-proof net, and during the growing period of vegetables, you can cover the trellis with a 50-mesh insect-proof net; Barrier prevention When the place where pests and diseases occur, farmers on the leaves, they need to pay attention to the changes in the leaves at all times, and if there is a situation of infection, it is necessary to remove the leaves in time to block the development of pests and diseases; From April to October every year, an insecticidal lamp can be installed in 30 to 50 acres of land in the United States, but it should be noted that the insecticidal lamp should be placed meters above the ground.

Choose pesticides with three certificates. There are certificates, licenses, and registration certificates, and such pesticides are often produced according to the corresponding inspection standards, and they are produced according to national standards. If we buy pesticides when we choose pesticides, it is very likely that we will buy some low-quality pesticides, and we may also buy some pesticides that do not meet national standards, so it is easy to have some adverse reactions when using.

In order to avoid buying bad pesticides, you must choose a regular store, and you must understand whether the label of the pesticide meets the national standards and whether it is within the shelf life. <>

Do not blindly increase the dose, and spray pesticides according to the proportion of the instructions. Some people want to be less smart, thinking that the concentration of pesticides is higher, so the effect of killing insects and some diseases may be better, in fact, this is a misunderstanding. Because the concentration of pesticides is too high, it will directly affect the growth of crops, after all, the concentration is too high, and if it is serious, it will directly affect the burning of seedlings, even if it is not very serious, it will also lead to pesticide damage.

Today's people are no longer satisfied with a single pesticide and will choose a mixed configuration to use it. When mixing the configuration, we must pay attention to the proportion and order of adding and adding, because the proportion and order are not right, there is likely to be some reaction, which will affect the growth of crops at that time. If you don't understand, you should consult a professional to avoid blind matching and undesirable consequences.

Try not to choose the spraying of pesticides in the high temperature period. It is not suitable to use pesticides in high temperature weather, because when spraying pesticides at high temperatures, pesticides will volatilize quickly, and will cause pesticide residues on crops, and will cause burn spots after sun exposure, which will cause yellowing of leaves, and even lead to leaf wilting, so this point must be paid attention to, pesticide spraying, should be selected in the morning or afternoon, on the one hand, the temperature is not so high, and then it should be noted that it can be sprayed when there is no wind and rain.