Does the overnight use of a good pesticide affect the efficacy?

It doesn't affect it, but you need to shake it again, especially with the stirring at the bottom, because there will be precipitation after overnight.

1.Generally, after the prepared pesticide is separated overnight, it also has a certain effect on the next day, and the specially prepared medicine for beating fruit trees will generally not lose its effective effect within 4 days.

2.If the prepared pesticide is overnight, due to the overnight time, some agents will precipitate, when spraying and using again, it is necessary to thoroughly stir it to mix evenly, and pay attention to the bottom of the liquid in the barrel to stir, so as not to affect the use effect.

It will affect the efficacy of the drug.

After dilution of aqueous solution, the longer the time is placed, the more the efficacy is reduced, and the worse the effect of pests and diseases after spraying.

General pesticides, since the date of production of the manufacturer, most of them have a quality assurance period, or one year or two years or three years or longer, etc., after dilution with water, the quality assurance period of pesticides will become very short, that is, we say "pesticide failure", after diluting with water to become a suitable pesticide solution, it is recommended not to store for more than 24 hours, and to avoid high temperature, strong light, placed in a cool place, can have a more secure extension of the efficacy.

Some pesticides are diluted and placed for a slightly longer time, and there is a phenomenon of flocculents, which has a great impact on the efficacy of pesticides. This requires us to pay attention to some problems when choosing to configure pesticides, choose the corresponding pesticides, reasonably arrange the time for spraying pesticides, and try not to delay for too long.

Precautions for configuring pesticides

1. The pH of the pesticide should be seen before preparing the pesticide.

Acidic pesticide fertilizer and alkaline pesticide fertilizer can not be mixed, these two pesticides and fertilizers with diametrically opposite pH will produce flocculent or precipitate after mixing, because of the chemical reaction played by these two.

As a result, the consequence is that the efficacy is greatly affected, some will even block the sprinkler, spraying is labor-intensive and time-consuming, and there is no effect, so that the prepared pesticides, within a few minutes, the efficacy is basically exhausted, and there is no good effect in timely spraying. When choosing pesticides, you should carefully read the instructions for use and figure out the pH of the pesticides that need to be mixed.

For example, stone sulfur mixtures that exhibit alkaline properties.

Can not be mixed with Bordeaux leaves, plant ash.

Water and the like are alkaline and cannot be mixed with all acidic pesticides. For example, organophosphorus insecticides, pyrethroid insecticides, carbamate insecticides, fungicidal agents, acaricides, etc., can not be mixed with alkaline pesticides, which are not only prone to chemical reactions that cause drug failure, but also may cause drug damage.

Like some mancozeb.

Anti-alum, Fumei double.

Dymori United, methyl tobuzin.

It cannot be mixed with the same preparation, and if it is mixed, it will cause the efficacy to be reduced.

2. Pay attention to the expiration date of pesticides, expired pesticides, the efficacy is not ***, whether you spray immediately after the configuration or spray after delaying the time, the effect of the drug is very poor.

3. Using the secondary dilution method, each pesticide should be mixed with a small amount of water first, and then mixed with the total amount of water needed after dissolving, and constantly stirred, so that the diluted pesticide is uniform and can improve the control effect. In general, when preparing pesticides, it is better to mix no more than three pesticides.

If used overnight, it will not affect the efficacy of the drug. Because the active ingredient of the pesticide has not changed. So it won't make a difference.

It has an effect and will reduce the efficacy of the drug. When using, you need to use more than that.

As long as this is redeemed, it will not affect the next day, but you must pay attention to keeping it at night to avoid other people in the family from accidentally not moving.

Alkaline water is not good mixed with pesticides. Does it have an effect on the effect? Yes, this reduces efficiency. It is necessary to increase the amount of water when using it.

Generally, the effect period is best within 4 hours, and it can be used for four or five days, but the efficacy is not guaranteed.

Pesticides refer to chemical agents used in agriculture to control pests and diseases and regulate plant growth. It is widely used in agriculture, forestry and animal husbandry production, environmental and household health pesticide and epidemic prevention, industrial products mildew and moth prevention, etc. There are many varieties of pesticides, which can be mainly divided into insecticides, acaricides, rodenticides, nematicides, molluscides, fungicides, herbicides, plant growth regulators, etc.

According to the raw materials, it can be divided into mineral pesticides (inorganic pesticides), biological pesticides (natural organic matter, microorganisms, antibiotics, etc.) and chemical synthetic pesticides; According to the chemical structure, there are mainly organochlorine, organophosphorus, organic nitrogen, organosulfur, carbamate, pyrethroids, amide compounds, benzoic acid, organometallic compounds, etc., which are all organic synthetic pesticides.

According to the processing dosage form, it can be divided into powder, wettable powder, emulsion, emulsifiable concentrate, cream, paste, colloidal agent, fumigant, fumigant, fog agent, granule, microparticle agent and oil.

Classification and dosage form.

The broad definition of pesticides refers to the chemical synthesis of a substance or mixture of several substances produced by organisms, other natural products and the application of biotechnology for the prevention, eradication or control of diseases, insects, grasses and other harmful organisms that endanger agriculture and forestry, and for purposefully regulating, controlling and affecting the metabolism, growth, development and reproduction processes of plants and pests.

In a narrow sense, it refers to a class of drugs that are used to kill insects, sterilization, and harmful animals (or weeds) in agricultural production in order to protect and promote the growth of plants and crops. In particular, it refers to pesticides used in agriculture to control pests and diseases, regulate plant growth, and control weeds.

How long does it take for the pesticide to expire after it is prepared, the key depends on what pesticide and water quality, if the water quality is neutral or slightly acidic, the pesticide will be placed for a longer time after it is prepared; If the water quality is alkaline or acidic, the storage time is shorter; If it is a single agent, it will be placed for a long time, and the mixed pesticide will be placed for a short time. In short, after the pesticide is prepared, whether it can be used for 4-5 days depends on the specific situation. However, you can do a small area test first, and then use it again the next day if there is no drug damage, which is safer.

If it's not worth a few dollars, just pour it out (don't pour it into the river).

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How long does it take for <> pesticides to expire after they are prepared? Can I still use it for four or five days? Urgently

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<>Smile source slow] can the pesticide be used overnight?

Hello, the prepared pesticide can be put for three months, 4 or 5 days is OK. Most of the pesticides are mixed together in a slippery state, and there will be no chemical closure changes, so there is no problem in retaining them, and they can be fully stirred when they are used next time. It should be noted here that solid pesticides are easy to sink down, so they must be stirred and mixed before use.

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<> several medicines in one piece, will it be counterproductive overnight?

No, it reacts as soon as you put it down. Placement is no problem.

I didn't take the medicine for the watermelon today, and will it react to the watermelon tomorrow, mainly because the medicine is filled with water.

No. No problem.

Because the medicine is mixed together and reacts, there is no problem with how long it can be left behind.

Isn't it not very effective?

No, just cover it.

Then I asked a few people and said that they would not use it after 12 hours, no.

The lid can be left out for 3 months.

Okay, got it.

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Pesticide solutions are most effective in the first few hours after mixing, and gradually decrease over time. If the mixed pesticide is left overnight, its efficacy may be affected to varying degrees due to volatilization, decomposition or inactivation after contact with air, especially for some drugs containing volatile or unstable components.

At the same time, pesticides and historical deficit solutions placed overnight will also face problems such as poor storage conditions and microbial contamination, resulting in reduced or complete loss of efficacy.

Therefore, in order to ensure the effectiveness and safety of pesticides, it is recommended to mix sufficient amounts of potions as needed before use, and try to avoid storing them for too long. If you need to store it overnight, you can choose to store it in a closed container, and stir or shake it properly before use to restore the uniformity and activity of the liquid medicine.

Summary. The pesticide can still be sprayed overnight, but its efficacy will be affected. Most of the pesticides are liquid, and some pesticides are ready-to-use.

The rest of the pesticide spraying is separated overnight, can it still be used tomorrow?

The pesticide can still be sprayed overnight, but its efficacy will be affected. Most of the pesticides are liquid, and some pesticides are ready-to-use.

Some can be used after a period of time. If the pesticide is placed in a relatively closed container such as a sprayer, its volatilization will be limited, so it can be reused at intervals. Although pesticides can still be sprayed overnight, it is recommended to spray them as soon as possible.

How long does it take for a pesticide to expire after it is prepared, the key depends on what pesticide it is and the water quality.

If the water quality is neutral or slightly acidic, the pesticide will be placed for a longer time after preparation; If the water quality is alkaline or acidic, the storage time is shorter; If it is a single agent, it will be placed for a long time, and the mixed pesticide will be placed for a short time.

Dilution factor = dilution and water addition of commercial pesticides.

Water dilution factor = active ingredient content of commercial pesticide Concentration of active ingredient in liquid medicine 1, conversion of pesticide active ingredient amount and commercial quantity: pesticide active ingredient amount = pesticide commodity dosage Pesticide commodity concentration (%)

For example, if you use grams of the active ingredient per hectare, you need 300 grams of EC.

2. Parts per million concentration (milligram kilogram) and percentage concentration (%) conversion: parts per million concentration (milligram kilogram) = percent concentration 10000

For example, 40% dimethoate EC is converted to 400,000 milligrams per million kilograms.

Not only look at the water quality, but also look at what kind of agent, what dosage form, generally, the water agent can be stored longer, and the suspension agent is worse, the chelated state has to be used with the matching, it is recommended that the current use is used, do not retain, and dispose of it directly and safely if it is not used up.