What should we pay attention to when applying systemic pesticides?

The agent can inhibit the application of the fungus after infecting the plant, which can inhibit the growth of the fungus, and even cause death, reduce the damage of the plant, and restore health. Most of the pesticide fungicides with typical efficacy are systemic agents, which have strong systemic effects. However, systemic fungicides have a two-way systemic conduction effect, especially for the best effect.

Bacteria are not susceptible to resistance to protective fungicides, whereas they are easily resistant to systemic fungicides. Therefore, it is recommended to use both. <

Systemic insecticides generally refer to those that can be absorbed by crops and conducted in the body to achieve the purpose of controlling pests and diseases. For example, tricyclazole has good systemic ability, and is quickly absorbed by rice after application, so it can be applied in the rain gap), and enters the surface layer of rice leaves through in vivo conduction to prevent the germination and immersion of rice blast spores, and the inhibitory effect of the drug on isolated rice blast pathogens is weak. Due to its good systemic properties, it has a good control effect on brown planthoppers that mainly occur at the base of rice, and its control effect is better than that of other insecticides that only have contact killing characteristics.

It is not necessary for the drug to have a strong systemic ability to work, but also to have a high level of activity. <

Read the product leaflet carefully before mixing pesticides. It is necessary to operate in strict accordance with the methods required in the product manual. Pesticides should not be mixed with too many pesticides.

There can be no more than 3 kinds of systemic fungicides, otherwise the inaccuracy of their interaction will be greatly increased, and the possibility of failure or drug damage will also increase. Need for medication rotation: Medication rotation can delay the development of harmful bacteria.

When applying pesticides, pesticide varieties should be rotated frequently to delay the emergence of resistance. The spraying should be uniform, and most of the systemic agent is mainly transmitted to the upper part of the plant, and rarely to the down. Therefore, it must be uniform in the process of use, and there can be no heavy spraying without leakage.

First of all, we must prescribe the right medicine, choose the right pesticides, pay attention to the proportion and dosage of pesticides, when spraying pesticides, we must wear protective clothing, avoid contact with **, should avoid rainy weather or windy weather, it is best to choose to use pesticides on sunny days, so that it will not affect the effect of pesticides.

Pay attention to external diseases, the alternate use of pesticides, pay attention to the mixed use of pesticides, prescribe the right medicine, pay attention to the time of application, pay attention to the dosage of pesticides, and so on, these are the principles to be adhered to.

We must choose targeted pesticides, do not abuse pesticides, but also ensure that there is enough moisture in the soil, and must use pesticides within a reasonable time, and we must grasp the outside temperature.

These adhere to the principle is to read the instructions carefully, do not mix too many pesticide varieties, mix the pesticides to use as soon as possible, to spray evenly, to alternate the use of medicine, to choose the right time to use.

How to use pesticides rationally? What should I pay attention to?

Pesticides are all too familiar to farmers, as they are often used in farming. So how to use pesticides rationally? What should I pay attention to?

The first point is to choose the right dosage form. Choose the appropriate dosage form according to different types of pest control and use methods. To control borers and underground pests, as well as to control perennial weeds, choose slow-release, long-lasting and intrinsically attractive pesticide pests.

Different dosage forms of pesticides have different physicochemical properties. Some are sustained-release but have a long effect, some are fast but have a short period of effect, some have a large particle size, and some have a small particle size.

The second point is to choose the appropriate way to use it. Fumigation and fumigation can be used to prevent and control crop pests and diseases growing in closed environments such as greenhouses, and the use period is generally determined according to the development period of pests such as diseases, insects and weeds, crop growth progress and pesticide varieties. There are many ways to use pesticides to prevent underground pests or pests that harm the base of crops on the ground.

Any kind of pesticide must be used in accordance with the recommended dosage of the pesticide label, and should not be increased or decreased at will.

The third point is to grasp the dosage and spraying quality. Arbitrarily increasing the dose is easy to cause drug damage, resulting in excessive pesticide residues in agricultural products. Attention should also be paid to the quality of the spraying, which must be evenly sprayed to achieve the control effect.

Try to avoid the sensitive period of natural enemies to pesticides, that is, you can not use it early or late, and you can not miss the favorable period for the prevention and control of diseases, insects and weeds. If this panicle bush is used early in the disease, the drug is used. Must be used in accordance with the recommended dosage on the pesticide label.

Fourth, pay attention to drug rotation to delay the development of drug resistance. Long-term continuous use of a single pesticide variety can easily make pests and weeds resistant to drugs. The rotation of pesticide varieties with different mechanisms of action is an effective method to delay pest resistance and ensure the control effect.

Strict spacing rules are observed. The pesticide interval is the number of days from a single application to the harvest of the hosiery. In order to ensure that the residues of agricultural products do not exceed the standard, agricultural products cannot be harvested during this period.

There are many aspects that need to be paid attention to in the use of pesticides, and the following is a brief introduction.

The first point is to wear protective equipment as much as possible when using pesticides to prevent pesticide poisoning. We all know that many types of pesticides are toxic, and even some pesticides are highly toxic. For example, some pesticides will cause itching, redness, swelling, allergies and other reactions after contact, if the pesticide accidentally penetrates into the wound, it may cause serious poisoning.

Some pesticides are volatile and may burn the respiratory tract when they enter the body's respiratory tract, or even cause people to go into shock due to shortness of breath. Therefore, in the process of using pesticides, we must wear protective equipment to prevent our own contact with pesticides, and also wear masks to prevent poisoning due to excessive pesticide inhalation.

The second point is that pesticides should be sprayed in the right weather conditions, and using pesticides in the wrong weather conditions may not yield satisfactory results. In fact, under what circumstances pesticides should be used is also a technical job, such as using pesticides before a thunderstorm, then due to the dilution of pesticides by rain, it will definitely reduce the efficacy of pesticides, and the purpose of using pesticides cannot be achieved. Or if pesticides are used in hot weather, the effectiveness of the pesticides will also be affected due to the evaporation of water.

In addition, if the temperature is very high, it will also increase the risk of poisoning for workers, which will lead to some production safety accidents.

The third point is to pay attention to the ratio between pesticides and water, otherwise the dilution of pesticides is not normal, and the efficacy will definitely not be normal. Many people may think that increasing the concentration of pesticides when using pesticides will quickly kill many pests and weeds and improve economic benefits. However, if some pesticides are used in excess, they will not only kill pests and weeds, but also kill crops as well, which is definitely not worth the loss.

Moreover, this will also increase the amount of agricultural residues in crops, affecting our food safety. Of course, if you deliberately reduce the dosage because you are afraid of pesticides, it is not advisable, which will definitely reduce the efficacy and fail to achieve the use effect.

During use, you should pay attention to wearing gloves, and then dilute it with water, preferably in the morning, so that the effect will evaporate faster.

Well water must not be used, protective measures must be taken, the concentration of pesticides should be paid attention to, pesticides should also be used in a targeted manner, and pesticides should not be abused.

Pesticides are essential items in agricultural production, but pesticides need to be used according to the instructions, used in a certain proportion, and the pesticides that have not been used up should be properly preserved.

First of all, it is necessary to pay attention to the appropriate medication standards, and then after the emergence of serious pests and diseases in crops, we must use agriculture in a timely manner, and we must understand the basic operation, and we must do a good job of personal protection.

1) When dispensing, the dispensing personnel should wear rubber gloves and must weigh the liquid medicine or powder according to the dosage and measuring tool on the instructions. Do not increase the dose arbitrarily. The seeds should be mixed with tools, and it is strictly forbidden to mix the medicine by hand.

Mixed seeds should be sown mechanically as much as possible. If sowing by hand, protective gloves must be worn to prevent poisoning.

2) When dispensing medicines, stay away from residential areas or drinking water sources. Strictly prevent pesticides from being lost or accidentally eaten by people, animals and poultry.

3) When using a manual sprayer for spraying, check whether the switch, joint, nozzle, etc. are tightened before spraying. The liquid medicine in the medicine barrel should not be too full, so as not to shake out the barrel and pollute the applicator body; Spraying should be carried out alternately, and the left and right sides should not be sprayed at the same time; It is forbidden to spray when the wind is strong at noon and the temperature is high; After spraying, clean the sprayer, gauge, etc., and store them in the designated place. The rinsed waste should be disposed of away from homes, water sources, and crops.

Containers used to measure pesticides must not be used for other purposes.

4) Fields that use highly toxic pesticides should be clearly marked, and grazing, mowing, and digging wild vegetables are prohibited for a certain period of time.

5) It is forbidden to use drugs for frail and sick, ** patients, and pregnant women. Children should not be brought into the pesticide spraying site when taking medicine.

6) If the sprayer has symptoms such as headache, dizziness, nausea, vomiting, etc., he should immediately leave the application site and send him to the hospital for diagnosis and treatment in time. (1) Accurately check the pesticide application area, and calculate the dosage and application solution according to the pesticide dosage recommended by the pesticide label or the recommendation of the plant protection technician.

7) Operate in the shed and accurately measure pesticides with special weighing instruments. After taking pesticides, seal the original pesticide packaging and store it safely. Pesticides should always be kept in their original packaging before use.

8) It should be used and matched, and should not be stored for a long time; If it is stored for a short period of time, it should be sealed and kept by a special person.

9) The dosage of pesticide application solution should be determined according to different application methods, control objects, fruit tree varieties, growth periods, etc.

10) The preparation of pesticides should be made of clean water without impurities, and the water should not be directly taken from the equipment used to prepare pesticides.

11) Pesticides should be prepared in accordance with the pesticide formulations and methods recommended on the pesticide label.

12) Dilution should be carried out by the "secondary method": Pesticides diluted with water: first dilute the pesticide preparation with a small amount of water into the "mother liquor", and then dilute the "mother liquor" to the required concentration.

Solid carrier dilution of pesticides: pesticide preparations are evenly diluted into "master powder" with a small amount of dilution carriers (fine soil, fine sand, solid fertilizer, etc.), and then diluted to the required amount.

13) The preparation of ready-to-use pesticides shall be carried out in accordance with the provisions of the pesticide label or under the guidance of technical personnel.