How to operate pesticides in the process of use?

Diseases, insects and grasses have different resistance to pesticides at different stages of development. In terms of pests, the resistance of third-instar larvae is generally weak. In terms of diseases, the resistance of dormant spores of pathogenic bacteria is stronger, but the resistance is weakened when the spores germinate.

In terms of weed damage, weeds are more sensitive to drugs at the germination stage and the initial growth stage, and their resistance to drugs gradually increases with growth.

Pesticides should be selected from a safe, efficient production and economic perspective to prevent unnecessary pesticide damage. For example, the organophosphorus pesticide applied to rice, although the toxicity of chlorpyrifos is small, but the effect on cereal crops is great, so we must be cautious when choosing pesticides. For example, to control rice red-eyed bees, it can be sprayed on the leaf surface before planting, when spraying, it is necessary to pay attention to prevent the liquid medicine from spraying on the leaves, and when spraying after control, it is best not to cover it with plastic film.

The selection of pesticides should be considered from the pathogenic organisms of pests and diseases, the habits of host insects, the sensitivity to pesticides, and the impact of pesticides on the ecological environment, etc., and should not pursue yield and economic benefits one-sidedly. For example, rice koji virus mainly harms stems and leaves and causes diseases, so low-toxicity pesticides such as linaline phosphorus should be selected, such as Yidaofeng. Use pesticides where they are used.

For example, pesticides are used on vegetables and other crops, which can not only kill germs, but also kill insect eggs, and pesticides should not be used on humans and animals. Don't use pesticides indiscriminately. If pesticides are more harmful to fish, birds, rodents and insects, pesticides should be properly disposed of frequently.

Always check whether pesticides are packaged in complete and clean containers, and do not store pesticides in damp, airtight places. If the quality of the selected pesticide is not good, it will not only fail to play the role of prevention and control, but also make the pesticide residue more and more large, bringing unnecessary losses to agricultural production. The use of pesticides should be appropriate.

First of all, it is necessary to dilute it with water, and when using it, you should pay attention to the proportion, you should pay attention to the ingredients, do not use it when the temperature is particularly high, you must prescribe the right medicine, and wear protective clothing.

Put the pesticide in a safe place, and then spray it in a targeted manner, be sure to stay away from the water source, and put the pesticide in a container for operation, which is very safe and very effective.

In the process of using pesticides, we must do a good job of personal protective measures, we must wear protective clothing, avoid contact with **, spray pesticides must pay attention to the proportion and dosage of pesticides, should avoid rainy weather and windy weather, choose to spray pesticides on sunny days, so that it will not affect the effect of pesticides.

The use of chemical pesticides to control diseases, insects and weeds is a necessary measure in agricultural production. On the basis of mastering the performance of pesticides, the following principles must be paid attention to in order to use pesticides scientifically, reasonably and safely. What should I pay attention to during use?

We have summarized the following points in the hope that it can be helpful to you.

The scientific and rational use of pesticides should start from the following aspects:

1. Abide by the rules for the safe use of pesticides. It is strictly forbidden to use pesticides that are highly toxic, highly toxic, high residue or have three characteristics (carcinogenic, teratogenic and mutagenic) on edible agricultural products.

According to different crop types and different safety requirements, the use of certain pesticides, such as permethrin and dicofol, is further restricted or banned because of the EU's increase in the standard for imported tea.

2. Follow the pesticide safety interval. The safety interval is the time between the last application and the harvest and before the use of the crop, that is, the time required from the time of spraying to the time when the residue is reduced to the maximum allowable residue.

3. Safety protection measures. Personnel who apply pesticides must take safety precautions to prevent poisoning of pesticide applicators. The remaining liquid medicine of discarded and expired pesticides, the cleaning solution of pesticide application equipment, and empty containers should be disposed of centrally and safely.

4. Reduce medication. Through tillage measures, some pests and diseases can be eliminated, creating conditions that are not conducive to the occurrence of pests and diseases, and at the same time improving the ability of crops to resist pests and diseases. For example, carry out pastoral cleaning, treat sick and disabled bodies, and reduce the number of pests and diseases; Reasonable dense planting, increase ventilation and light transmission in the field, remove water in time, and reduce the humidity in the field; Scientific formula fertilization makes crops grow robustly and improves their ability to resist diseases and insects.

1. Check whether the main content of the label is qualified and true.

2. Check the factory time to see if the product is within the shelf life. The shelf life of general products is 2 years, and for individual varieties is 3 years.

3. Check whether the "three certificates" are complete and true.

4. Check the appearance of the product. Different pesticides have different characteristics that can be identified by shape and color. Qualified emulsifiable concentrate products should be uniform and translucent, with no emulsifiable concentrate on the top and no precipitation on the bottom. Powders or wettable powders should not agglomerate and be in powder form.

5. Check the "Pesticide Registration Announcement" or log in to the China Pesticide Information Network for checking.

1.The type of pesticide that uses the gate feng shui

According to the different crops of different farmers have different diseases, the appropriate selection of the required types of pesticides to ensure the right symptoms, otherwise, not only the actual effect is poor, but also will continue to consume pesticides, delay the opportunity for prevention and control, and cause damage to agriculture.

2.Moderate medication

Diseases, insects, and weeds with different development processes have different resistance to pesticides. At the level of pests and diseases, generally speaking, the juveniles before the 3rd instar have weak drug resistance, and it is recommended to take the drug before the 3rd instar, and the actual effect is good. At the level of pests and diseases, the spores of the pathogen are dormant and the resistance of the spores becomes weaker when they germinate.

At the level of weed damage, weeds are more sensitive to drugs in the germination stage and new generation, and then the resistance to pesticides gradually increases with growth and development. Therefore, when applying pesticides, it is necessary to investigate and analyze the meteorological forecast according to the total number of diseases, insects, grasses and nemesis, so as to take drugs immediately when the control index value is taken.

3.Strictly control the dosage

The highly recommended dosage on the pesticide label or instructions for use is generally clarified through continuous experiments, and can not be adjusted at will in the application to prevent crop fertilizer damage or harm to the prevention and control effect.

4.The medication should be evenly proportioned and thorough

Most of the systemic insecticides and pesticide fungicides used today are dominated by the transmission to the upper end of the main stem, and very little is transmitted downward, so it must be evenly proportioned and thoughtful when spraying, and it is not necessary to spray when the open field cultivated crops are windy, so as to ensure that the better control effect is obtained.

5.Effective blending of pesticides

When mixing and mixing pesticides, it is important to follow the standard: two or more pesticides may cause a chemical reaction when mixed. Because this kind of chemical reaction may cause the dissolution of related components to be ineffective, and may even cause harmful substances, resulting in fertilizer damage.

For example, carbamates, pyrethroid insecticides and dithiohydroxybenzoic acid compound pesticide fungicides are more sensitive to alkaline standards and should not be mixed with alkaline pesticides or chemicals. Most of the organic chemical sulfur pesticide fungicides are more sensitive to acidity and cannot be mixed with acid and alkaline pesticides.

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What is the method that must be followed for the use of pesticides?

1) Application of high-efficiency, low-toxicity and low-residue pesticides. To prevent banana diseases, it is advisable to use green plant-derived insecticides, microbial strain-derived insecticides, fungicides, insect naphthalene acetic acid, mineral-derived insecticides, fungicides and their low-toxicity and low-residue pesticides.

2) Do not use pesticides manufactured without approval and consent and prohibit the use of pesticides. Do not apply pesticides that have not been filed and approved by relevant national units; Do not use toxic, hazardous chemicals and high residues or pesticides that are strictly prohibited in China.

3) Strictly abide by the national rules for the application of pesticides. Refer to the relevant pesticide application rules and requirements in GB4285 and GB T8321, and strictly grasp the amount of use, quarterly application frequency, application method and safety interval. For pesticides that are not required in the specification, they should be applied in strict accordance with the requirements in the instructions for the use of the pesticides.

Do not increase the amount and concentration value arbitrarily. For medium-level toxic pesticides that are limited to application, the lower limit of the allowable concentration value should be applied for different pest control objectives.

4) Pay attention to the replacement of pesticides. In the production and manufacturing of bananas, it is advocated to replace the application of different types of pesticides to avoid the emergence of drug resistance of pathogenic bacteria and insect pests.

5) Continuously improve the pesticide application technology. Grasp the regularity of disease and the effective period of different pesticides, select the appropriate pesticide type, the best prevention stage and high-efficiency pesticide application technology to achieve the best practical effect. At the same time, we should grasp the toxicity of pesticides, apply selective pesticides, and reduce the harm to people, animals, and nemesis, as well as the environmental pollution of commodities and the natural environment.

6) Strictly grasp the safe medication interval. For pesticides with limited application, the interval between the last dose and banana picking should be more than 10 days after its expiration date; The interval between the last dose of pesticides and the harvesting of permitted pesticides should be more than 20 days.

The way to follow is to be sure to choose the right brand, and the pesticide must be placed in a safe place, never let children touch it. Attention is also needed. When spraying pesticides, don't spray pesticides if the weather is bad.

The first point must be followed is to pay attention to it, what to use first and then what not to spray indiscriminately, the second point should be to pay attention to the whole process when spraying pesticides, do not make a mistake.

The methods that must be followed are to wear appropriate protective clothing, to use pesticides when no one is around, not to raise the machine too high when using pesticides, and not to use excessive pesticides.

It must be used reasonably, we must pay attention to safety, pay attention to the ratio of pesticides, and we must choose the right pesticides.