How to remove pesticide damage from fruit trees? What should I do if there is a pesticide damage to

You can use some products to relieve the damage of the drug, and the effect is fast.

Method. 1: Spray 6000 times potassium permanganate solution. Potassium permanganate is a strong oxidizing agent that oxidizes and decomposes a wide range of chemicals.

2: Rinse repeatedly with plenty of water. Most chemical agents are not resistant to water washing, if the concentration of pesticides is too large to cause pesticide damage, it is necessary to fill the sprayer with clean water, and repeatedly spray towards the leaves of fruit trees to wash away the chemicals remaining on the surface of the leaves.

3: Suspend the use of similar drugs. Before the pesticide damage is completely removed, try to reduce or stop the use of pesticides, especially the same type of pesticides, so as not to aggravate the pesticide damage.

4: Spray foliar fertilizer. After the occurrence of pesticide damage to fruit trees, you can choose Vosch Anfago to prevent and relieve pesticide damage. It is necessary to supplement some fast-acting chemical fertilizers in combination with watering, and then cultivate and loosen the soil, which can promote the normal growth and development of fruit trees as soon as possible.

If you want to remove the pesticides on the fruit, you can first soak the fruit in water, then rub some toothpaste on the surface of the fruit, and then rub all the toothpaste.

If you want to remove pesticide residues from the fruit, you can first rinse the fruit in water, then sprinkle some flour on the fruit, and evenly coat the fruit with flour.

Vinegar, vinegar is a very common condiment in daily life, and there are quite a lot of effects, such as decontamination and sterilization, etc., if you want to effectively remove pesticides from fruits, you may wish to choose appropriate vinegar in water.

Soaking in light salt water, if you want to remove the residue on the surface of the fruit, you can actually use light salt water to soak, first of all, you should first put the fruit in clean water and wash it about two or three times.

1. Stop using similar pesticides

After the occurrence of pesticide damage in the orchard, when determining which pesticide brings the harm, before the pesticide damage is completely removed, the use of pesticides should be minimized, especially the pesticide varieties and dosage forms that have been clearly caused by pesticide damage shall not be used again to prevent aggravated losses.

2. Rinse immediately with clean water

If the pesticide concentration is too large and causes pesticide damage, it is necessary to fill the sprayer with water and wash it repeatedly towards the leaves of the fruit tree to wash away the remaining pesticides on the surface of the leaves. The sooner and more timely this measure is taken, the better the results.

3. Appropriate pruning

After the fruit tree is damaged by pesticides, it is necessary to prune it in a timely and appropriate amount, cut off the dead branches, and remove the dead leaves to prevent the spread of the dead part or the disease caused by the infection of the disease.

4. Spray neutralization

If the pesticide damage causes albino of leaves, 3000 times of granular 50% sodium humate can be used for foliar spray; Or use the same method to mix 50% sodium humate into 5000 times the liquid for irrigation, and the leaves will gradually turn green after 3 5 days; If the pesticide damage is caused by the stone sulfur mixture, on the basis of washing, spray 400 500 times of rice vinegar solution to reduce the pesticide damage; If the pesticide damage is caused by the copper sulfate ions in the Bordeaux liquid, the aqueous solution of lime can be sprayed to eliminate the pesticide damage.

5. Timely top dressing

With plant cell activator, sodium nitrate phenol 2000 times plus urea mixed with foliar spray, the effect is more significant. The endogenous hormone of plant growth, brassin, has the effect of increasing the vegetative growth of plants, and also has an ameliorating effect on the pesticide damage of fruit trees. Increasing the application of fast-acting fertilizer can improve the stress resistance of the tree and alleviate the degree of pesticide damage.

No matter what kind of pesticide damage, foliar spraying of urea solution plus potassium dihydrogen phosphate mixture, spraying once every 15 17 days, spraying 2 3 times in a row, can reduce the pesticide damage.

Under normal circumstances, the suitable temperature for pesticides is 20-30, and the minimum temperature does not exceed 32. Before ten o'clock in the morning, after three o'clock in the battle, the spraying force was calm. Some pesticides, such as stone sulfur mixture, dimethoate, etc., are harmful to pests and diseases at low temperatures, and the consequences are serious.

But most of the pesticides are sprayed in the case of too dry weather and too high temperature, due to the high temperature, the water evaporates quickly, the pesticide concentration is easy to increase, and the concentration of the fruit tree is easy to increase, and the temperature of the fruit tree is too high, which is easy to cause pesticide damage. In general, listen to the weather forecast before spraying pesticides. If there is rain on the day, it can not be sprayed, especially before the rainy season, sprayed copper ions before spraying, and after rainfall, copper ions are concentrated, and pesticide damage will occur.

Golden apples use Bordeaux liquid during the dry season, which tends to produce a large number of rust spots every year. <>

Some pesticides are mixed with sprays, but they should not be mixed, such as sulfur mixtures and Bordeaux solutions, which will increase water-soluble copper, and spray on fruit trees is most likely to cause pesticide damage. Within 7-10 days after spraying the stone sulfur mixture, the Bordeaux liquid can be sprayed first, and the use of stone sulfur sprayed within 20-30 days after spraying the Bordeaux liquid is prohibited. The liquid medicine should not be too much, nor should it be suitable for antibacterial special and fumeishuang, and it should also be used when mixed with inorganic phosphorus pesticides.

Natural enemies are more sensitive to the reaction of pesticides, so they should be used as little or as little as possible to protect natural enemies and maintain the ecological balance in the field. <

The weed-sensitive period is sensitive to herbicides for weeds growing on seeds, and the seedling and seedling stages are sensitive to herbicides, so this period is often the best time for herbicides. When using broad-spectrum herbicides, the pesticides should be applied under the condition that the growth period of lush weeds is relatively sensitive, and the weeding effect is obvious and the validity period is long. Be careful with safety spacing.

In accordance with the standards for the safe use of pesticides, apply pesticides within the safety interval to avoid excessive pesticide residues and adverse consequences. <

First of all, it is necessary to pay attention to the appropriate time, when using pesticides, we must pay attention to the rotation of a variety of pesticides, pay attention to the composition of pesticides, should pay attention to the concentration of pesticides, and then use pesticides, we must protect personal life safety, you can also choose liquid spray pesticides.

Generally speaking, pesticides should be sprayed on fruit trees before there are pests and diseases, and spraying should be carried out regularly, and they can be sprayed once every half a month, which can improve the disease resistance of fruit trees.

It is necessary to find the right pesticide for spraying, be sure to prepare in advance, match it according to the appropriate proportion, pay attention to safety, need to take protective measures, wear gloves, glasses, and wear a mask.

These pesticides should be added to water in a certain proportion, and then poured into a large kettle and sprayed on the fruit trees, which is also relatively common and beneficial to the growth of fruit trees.

Apples, pears and other crops flower dew red period of the use of medicine is mainly to prevent and control powdery mildew, flower rot, mildew, black and red spot disease and other diseases and gold tortoise shells, red spiders and other pests, this medicine can be good to eliminate all kinds of pests and diseases in the bud, for the whole year to lay a good foundation for pest control.

Urine lotion to kill red spiders, aphids generally use 300-500 grams of urea plus 100 grams of washing powder per mu, mix with 50 kg of water, mix and stir well, make urine lotion mixture for spraying, can effectively control red spiders, aphids and other pests on fruit trees, and can play a certain top dressing effect.

Under general conditions, there are four methods for controlling fruit tree diseases and pests, namely manual control, biological control, physical control and chemical control methods, and their specific contents are:

Artificial control refers to the combination of cultivation management, through fertilization, soil turning, pruning, thinning flowers and fruits to eliminate pests and diseases, or according to the characteristics of pests and diseases to eliminate pests and diseases by manual killing, removal, scraping. This method is used a lot in production, and almost every pest and disease control is used. For example, in winter, clean up the fallen leaves and fruits, scrape the rough bark, cut the diseased branches, and kill the longhorn beetle, tea-winged bugs, beetles, and scaphoid caterpillars in the growing season.

Biological control refers to the biological control of pests and diseases using living natural enemies. At present, China is mainly used for the prevention and control of pests, and the natural enemies that can be artificially propagated and released in large quantities are Bacillus thuringiensis, microsporidia, entomopathogenic nematodes, insect viruses, Beauveria bassiana, red-eyed wasps, ladybugs, lacewings, predatory mites, etc. Physical control uses various physical factors (light, electricity, heat, wind) or equipment to control pests, including trapping, trapping, blocking, and the use of irradiation technology.

For example, black light attracts insects, fruit trees are painted white to repel pests from laying eggs, and sweet and sour liquid and sexual attractants are placed in moth trap vessels. Chemical control is a method of using various chemical substances to control pests and diseases. At present, it mainly refers to the prevention and control of chemical pesticides.

There is no one-size-fits-all clever way, only prevention is the mainstay, timely prevention and control, such as removing deciduous weeds and dead branches in the orchard in winter, spraying 5 Baumé stone sulfur mixture before germination, spraying Bordeaux liquid before the rainy season, and paying attention to observation during the high incidence period of the high temperature season in the rainy season, so as to prevent the damage.

Suspend similar drugs as much as possible before the drug harm is completely removedReduce the use of pesticidesIn particular, the use of similar pesticides should be stopped so as not to aggravate the damage. Due to the high summer temperatures, fruit trees are prone to diseases and plagues, only need to spray the fruit trees multiple times, comparatively, apple trees need to be sprayed with pesticides three times before bagging, and there are few pesticides after bagging, especially after spraying Bordeaux liquid for a long time. Pay attention to the mix of fertilizers and medicines.

This is something to be noted throughout the year. When foliar fertilizers, fungicides and insecticides are mixed, attention should be paid to the interaction between them to avoid reactions and reduce the efficacy.

Most pesticides are not suitable for high-temperature spraying, because when pesticides are sprayed on fruit trees at the highest temperature, various diseases and plagues are easy to decompose and flood in the summer of high temperature and high humidity, fruit producers should pay attention to personal safety, spray in summer, and avoid heat stroke and poisoning; We must also pay attention to the sensitivity of the branches and leaves and fruits of fruit trees to pesticides, and only a more comprehensive consideration can reduce many unnecessary problems.

In the event of drug poisoning or damage to the fruit tree, the growth of new shoots can be slowed or stagnant. In severe cases, it will lead to the black death of heart leaf sprouts, spots, tricks, yellow spots, punching, punching, curling, falling leaves, falling fruits, and falling branches, which will not only reduce the photosynthesis of fruit trees, but you will also reduce or delay the flowering and colonization of fruits.

Misleading farmers into spraying pesticides has caused a lot of problems, which not only increases the investment costs of fruit farmers, but also everyone knows that the summer temperatures are relatively high and the climate is relatively humid. This is the time when fruit tree pests and diseases are rampant. In order to stabilize the yield, fruit producers will definitely spray pesticides on the fruit trees to prevent and ** diseases.

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The main cause of pesticide damage is caused by the incorrect way of applying chemical agents, especially some stone fruit trees are very sensitive to many pesticides and react violently, thus causing pesticide damage.

In production management, often due to many factors such as improper selection of pesticides, too high concentrations, wrong mixing of pesticides, or serious problems in the quality of selected pesticides, unnecessary pesticide damage will occur after application, thereby affecting the growth and development of fruit trees, branches and leaves, flowers and fruits, and ultimately reducing the quality and yield of fruits.

The symptoms of leaf and fruit damage are the most obvious, no germination or too late in early spring, the leaf hairs on the back of the leaves are brown or even dead, the tips and edges of the leaves are seriously scorched, sometimes the whole leaves and inflorescences turn brown and wither, some leaves appear many dead patches, and some leaves shrank and deform, thicken, harden and become brittle.

In such a situation, we should immediately remove it with water, and then cut down the fruit trees that were killed, so as not to affect other occupations.

It is to spray it with water to make the trees particularly clean, that is, to make the trees very good and grow well.

Wash away pesticides with water as much as possible to reduce damage to the trees and save losses.

1. Remove the dead branches and fallen leaves, and cut off the diseased and insect branches.

Many of the pathogens and pests that harm fruit trees overwinter in dead branches and leaves and wild grasses, and then breed on the trees the following year. For example, the overwintering sites of germs such as apple brown spot, gray spot and pear scab are among the stumps and weeds.

Most of the pathogens of apple anthracnose, grape white rot and peach brown rot overwinter on the residual fruits, and the larvae of pear tumor moth and apple apical leaf curl moth mostly overwinter on branches.

Therefore, it is necessary to remove the fruit trees and their nearby dead branches, fallen leaves and other garbage and debris, concentrate or burn, and combine winter pruning to effectively eliminate these overwintering pests and diseases, and take the cut diseased and insect branches to the orchard to be made or burned, so as to eliminate pests and diseases from the source.

2. Scrape the bark and white.

After leaf drop, apples, pear rots, ringworms, pear heartworms, apple moths, and hawthorn spider larvae and adults mostly overwinter in the rough bark and cracks of the trunk.

Scraping off rough skin, warped skin, and diseased skin can receive good results in the prevention and control of pests and diseases.

The best time to scrape the skin is in late autumn and early winter, and the depth of scraping is to scrape the rough skin and diseased skin, exposing the light brown cortex, and then apply lime fluid on the trunk.

When scraping, a plastic sheet is laid under the tree to collect the scraped bark so that it can be taken out of the orchard for making or burning.

3. Deep ploughing of tree trays and winter irrigation.

The tree disc refers to the soil that is centered on the trunk of the tree and enclosed by the canopy.

By deep ploughing the orchard soil in autumn and winter, bacteria and pests hiding in the soil for overwintering can be turned out of the ground, allowing birds to peck at and freeze to death. At the same time, it can also bury the dead leaves and dead grass pests on the ground, and these pests are not easy to get out of the soil and suffocate the following year. The ploughing depth should be about 30 cm.

Winter irrigation in the orchard can cause the soil temperature and oxygen content to drop sharply, which is very beneficial for killing root eggs and reducing the degree of pupal emergence.

Precautions when scraping the skin.

First of all, the tools should be disinfected, and every time the bark with disease spots is scraped, the tools should be disinfected with alcohol before use, so as to avoid the spread of germs caused by humans.

Secondly, the bark should be scraped properly, the bark of large trees should be scraped white, and the small trees should be green, and should not be scraped to the xylem.

After scraping, the trunk is painted white, which on the one hand kills the insects and diseases that overwinter in the cracks of the bark, and on the other hand, prevents the plants from frost damage.

Apply the main stem and the lower part of the main branch to be even, and whiten it twice for better results, once in late autumn to early winter, and the other in late winter to early spring of the second year.

When coating the trunk, it is appropriate not to run, not to warp or fall off after drying. In this way, it is conducive to the prevention and control of sunburn, and also to treat trunk diseases and pests. Whitening should be done on sunny days, and whitening in rainy and snowy weather will reduce the effect.