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Anonymous users2024-02-16The failure time of pesticides in confined spaces can be affected by a variety of factors, such as the type of pesticide, concentration, temperature, humidity, and the size and ventilation of the confined space. Therefore, it is not possible to give an exact time.
The expiration time of different types of pesticides will vary. For example, pesticides that have been mixed with water must be used within a specified period of time, otherwise they may be wasted. After some powder drugs are mixed with water, they must be used in time, and after a long time, the more weakened the medicinal properties will be, and the more effective they will be.
After the water drug is mixed with water, it can be used for a longer time, and it is also possible to use it within a month.
In addition, the size of the confined space and the ventilation situation can also affect the failure time of pesticides. The larger the space and the better the ventilation, the faster the pesticide will fail. Conversely, the smaller the space and the worse the ventilation, the slower the pesticide will fail.
In short, when using pesticides in confined spaces, we should try to follow the instructions for the use of pesticides to ensure the effectiveness of pesticides and the safety of human health. At the same time, attention should be paid to the ventilation of confined spaces to slow down the failure rate of pesticides.
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Anonymous users2024-02-15Hello: I am Jihua's traveling life, a native of Baoding, Hebei. Your question:
How long does it take for pesticides mixed with good water to become ineffective? "I am honored by your question and hope it is helpful to you. First:
Pesticides that have been mixed with good water are generally used within two hours according to scientific requirements to avoid neutralization, precipitation and other reactions that lead to unsatisfactory effects, but the effect of use within 24 hours in practical application is not large, and some can be a little longer. However, there are also some pesticides that must be used from time to time, and must be used up within the specified time, otherwise they will be wasted.
Second: a variety of pesticides mixed with water, there will be a chemical reaction, 24 hours of use is the best.
Third: After the powder drug is mixed with water, it must be used in time, and the longer the time, the more the medicinal properties will be weakened and the drug will lose its efficacy.
Fourth: After the water agent is mixed with water, it can be a little longer, within a month! It can also be used.
Fifth: pesticides are used in time after being mixed with water, the medicinal properties are the strongest, and the medicinal properties are degraded and weakened for a long time, but they will still have some effect. If there are no special circumstances, try to cash out and avoid unnecessary losses! That's mine, I hope I can help you!
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Anonymous users2024-02-14Different crops are suitable for different types of blocking drugs, and it is best to understand the objects and methods of blocking drugs before use (land preparation should be flat, the dosage should be accurate, and the application time should be equal), so as not to affect the growth of crops.
What are the pesticide blocking drugs? Common blocking drugs are acetochlor, prochlor, butachlor, (refined) metolachlor, phenthiachlor, pendimethalin, fluoralin, isoproturon, oxachlor, azinone, benzsulfuron-methyl, pyrisulfuron-methyl, ethoxyflufen, etc., and many have been used in recent years, such as profenone, flukesulfachlor.
The commonly used direct seeding blocking drugs on rice are prochlor and benzylpyroxachlor, which are mostly used before seedlings after sowing, sprayed 2-4 days after rice germination and sowing, and can also be sprayed before sowing or sprayed with stem and leaf herbicides at the 2 leaf and 1 heart stage. Benzyl B, benzyl butyl, and benzyl benzyl can be used for transplanting, seedling throwing, and machine transplanting, which are used after rice throwing and regreening. If you want to strengthen the closed broad-leaved grass, you can add benzsulfuron-methyl and pyrisulfuron-methyl, and pay attention to covering the seeds.
The blocking drugs suitable for wheat include acetochlor, isoproturon, green melon, benzylsulfuron, thiensulfuron, and compound green wheat isoproturon, fluorothiazyl pyridyl fur, isolon, propyl chloropyropyro, etc., which are mainly closed before seedlings after sowing. Wheat is sensitive to acetochlor, and the dosage should not be too large for soil sealing, and there should be no stagnant water; With the increase of weed species, it is generally necessary to mix two single doses or choose compound preparations, so as to achieve the effect of efficient control of a variety of grasses and broad-leaved grasses.
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