How to use pesticides with water? How long does it take for a pesticide to become ineffective after

Depending on the type of pesticide, it is different, for example:

1. Acetochlor.

Solubility in water: 223 mg l(25) dissolved in a variety of organic solvents. 20 periods do not decompose within the year.

2. Alachlor.

Solubility in water 242mg l(25) can be dissolved in ethanol, ether, acetone, chloroform and other organic solvents, decomposition temperature 105, decomposition under strong acid and alkali conditions.

3. Atrazine.

The solubility at 20 is: water 33 mg l, chloroform 28 g l, acetone 31 g l, ethyl acetate 24 g l, methanol 15 g l. Stable in neutral, weakly acidic, weakly alkaline media.

4. Meolachlor.

Solubility water 488mg l (25), miscible with benzene, xylene, toluene, octanol and dichloromethane, hexane, dimethylformamide, methanol, dichloroethane, insoluble ethylene glycol, propanol and petroleum ether, stable at 300, hydrolyzed in strong acid, strong alkali and strong inorganic acid.

5. Grass net.

Solubility of water 33 mg l (25) acetone 300, ethanol 140, hexane, toluene 200, n-hexanol 110 (g l, 25), 20 neutral medium, slightly acidic and alkaline medium stable, hydrolyzed in hot acid and alkali, decomposed under ultraviolet light,.

The total water ratio of pesticides is generally 1:100, and the specific couple should refer to the instructions.

How long does it take for pesticides to fail after mixing with water generally depends on the type of pesticide, because different pesticides will have different invalidation times after mixing with water, for example, dichlorvos will generally fail about 10 days after mixing with water, while dichlorvos will generally fail about 10 hours after mixing with water.

Precautions: Most pesticides will have precipitation and delamination after 24 hours, which will affect the use effect, so pesticides are generally suitable for use with the mix. There are many types of pesticides, and the expiration time of different pesticides is different after mixing with water.

For example, dichlorvos will be completely dissolved with water and lose its effect after 30 days, so it needs to be used up as soon as possible after mixing with water, and the longer it is stored, the worse its efficacy will become.

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.

Summary. How long does it take for pesticides to expire after mixing with water, depending on the type of pesticide, such as dichlorvos will expire about 10 days after mixing with water, and dichlorvos will expire about 10 hours after mixing with water.

How long does it take for pesticides to expire after mixing with water, depending on the type of pesticides, such as dichlorvos attack section in about 10 days after mixing water, enemy killing in about 10 hours after the lack of reputation water will be invalid.

Note that no matter what kind of pesticide it is, it must be used as soon as possible after dilution, otherwise the efficacy of the drug will be affected by the bureau. Usually there will be precipitation after 24 hours, and there will be delamination, which will affect the effect of spraying.

It is best to store pesticides for no more than 24 hours after mixing with water, and they are generally ready to use. If you have a lot of liquid medicine at one time, you should store it in a cool place. Before reuse, the source should be transported and stirred well.

The longer the storage time after mixing with hail crack beam water, the weaker the medicinal effect will be.

Hello, happy or branched to answer your questions. If your pesticide is 100ml, then use 100ml * 2000 times = 200000ml and subtract 100ml, then divide by 500 grams, which is equivalent to how many catties of shirt spike water! Generally, it doesn't matter if it is reduced or not, there is not much difference.

Formula: Compare the pure as 50ml of pesticide dilution 2000 times the solution to calculate: 50:

x=1:2000 is OK if x=how much is obtained. Hope mine is helpful to you.

Summary. Dear, glad to answer 1According to the input amount indicated on the pesticide package, put the three pesticides into the barrel in proportion; 2.

Dilution with water to adjust the dilution ratio until the blending ratio indicated on the package is reached; 3.After adding water, stir the mixture evenly and filter the solution to avoid the accumulation of impurities; 4.Pour the mixture into the spray box to complete the use of pesticides with water.

The three pesticides should be mixed with water together, and how should they be mixed with water?

Dear, glad to answer 1According to the input amount indicated on the pesticide packaging, the three pesticides are put into the barrel in proportion; 2.Dilut with water to adjust the dilution ratio until the mixing ratio indicated on the package is reached; 3.

After adding water, stir the mixture evenly and filter the solution to avoid the accumulation of impurities; 4.Pour the mixture into the spray box to complete the use of pesticides with water.

I don't understand.

I said that the amount of water should not be increased, and it should not be increased.

Dear, you mean that the three pesticides have different amounts of water, and you need to mix the three pesticides together.

When several pesticides are mixed, water is not added once for each drug, but the same water is used for all kinds of drugs to calculate the concentration.

I'm Kai Hu said that a kind of Yanlu pesticide is mixed with 30 catties of water, if another pesticide is added, is it still 30 catties of water? If it is a single exchange, it should be 60 catties of water, so is my two pesticides together with 30 catties of water or 60 catties of water?

Kiss, it's all those 30 catties of water.

You don't need to add water for every medicine, you can use a bucket of water.

Together, are the three pesticides still not in a big concentration with 30 catties of water?

Pro, the order of pesticide mixing is mu fan dry micro fertilizer, water-soluble fertilizer, wettable powder, water dispersible granules, suspension agent, microemulsion, water emulsion, water agent, emulsifiable concentrate, added in turn, in each mixed use of the Xun Cave in front of the sedan car, the agent needs to be evenly stirred.

If you follow this step, you won't have a problem.

Generally, no more than three pesticides can be mixed.

Summary. 1.Remove the percentage sign of the original drug content; 2.

again x10; 3.the concentration after re-dilution; 4.The obtained data is that 1 gram of the original drug needs to be added with water (kg) Example 1:

One gram of 20 Qibao is diluted into 5ppm, and it needs to be mixed with water 20 (to the percentile) 10 5 (diluted concentration) 40 (kg) Example 2: One milliliter of CPPU is diluted into 2ppm, and the amount of water needs to be mixed with kilograms In fact, it is just one sentence: multiply the percentile by 10 and divide by the required concentration, which is the kilogram of water that needs to be added to one gram of the original drug.

The second algorithm: active ingredient (mg) divided by the required concentration = amount of water (kg).

How much water per gram of pesticide raw drug.

1g40 pounds.

1.Remove the percentage sign of the original drug content; 2.again x10; 3.

the concentration after re-dilution; 4.The data obtained is that 1 gram of the original drug needs to be added with water (kg) Example 1: One gram of 20 Qibao is diluted into 5ppm, and it needs to be mixed with water 20 (to the percent sign) 10 5 (diluted concentration) 40 (kg) Example 2:

One milliliter of CPPU is diluted to 2ppm, and it needs to be mixed with kilograms of water in one sentence: multiply the percent sign by 10 and divide it by the required concentration, which is the kilogram of water that needs to be added to one gram of the original drug. The second algorithm:

Active ingredient (mg) divided by required concentration = amount of water mixed with kg (kg).

For example, 98 percent of the original drug should be mixed with less water per gram to have an effect.

1g40 pounds, the same.

Dinotefuran, 95% of the original drug, how much water is suitable for each gram!

100g to 50 liters of water.