How to deal with pesticide damage caused by pesticide spraying on fruit trees

Reduce losses, reduce pesticide damage, after the pesticide damage is sprayed with auxin or other agents that can alleviate the pesticide damage, it is not necessarily the cause of the pesticide itself, and there are many pesticide hazards caused by improper use of pesticides.

The cause of pesticide damage is not necessarily the cause of the pesticide itself, first of all, to determine the cause of the pesticide damage, if it is because of the pesticide reason, you can negotiate with the pesticide dealer for compensation, after the pesticide damage is sprayed with auxin or other agents that can alleviate the pesticide damage, reduce the damage of the pesticide and reduce the loss. To protect their legitimate rights and interests, go to the local agricultural bureau or industrial and commercial bureau to determine whether they are using Europe improperly.

1) The bud is obviously enlarged period, that is, the light rod medicine is sprayed with high concentration of fungicides and insecticides during this period, and the trees and trees should be sprayed thoroughly. It mainly controls a variety of overwintering bacteria and pests.

2) Flower budding stage.

Spray higher concentrations of fungicides and insecticides at the budding stage of flowers, mainly to prevent and control flower rot.

3) Flowering period.

Fungicides and insecticides are sprayed one week after flowering to prevent a variety of diseases and aphids, red spiders, pear psyllids, etc.

4) Late fruit picking.

Spray a higher concentration of fungicides and insecticides before defoliation after fruit picking, mainly to eliminate overwintering pests and diseases, and reduce the damage in the second year.

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.

Pesticide damage to fruit trees can be divided into acute and chronic. Acute pesticide damage manifests itself within a few hours to a few days after spraying, such as spots on the leaf surface (fruit), yellowing, loss of green, wilting, leaf rolling, defoliation, fruit dropping, and knotted clusters. Chronic pesticide damage takes a long time to manifest itself, such as weakened photosynthesis, delayed flower bud formation and fruit ripening, dwarf deformity, and deterioration of flavor and color.

Once the fruit tree is found to have suffered pesticide damage, the following measures should be taken immediately to rescue: Spray 6000 times potassium permanganate solution. Potassium permanganate is a strong oxidizing agent that oxidizes and decomposes a wide range of chemicals.

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. 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. Spray foliar fertilizer. After the occurrence of pesticide damage to fruit trees, 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.

At the same time, foliar sprays of urea and potassium dihydrogen phosphate could improve the nutritional status of fruit trees and enhance the absorption capacity of roots.

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.

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.