When is the correct time to use pesticides?

Eagles, three-legged and other parasites.

Beetles and other parasites, as well as underground parasites, try to spray insecticides in the morning and evening.

It's morning or evening time. Depending on the reason of time and the law of parasite activity, the methods of using insecticides include mixing, spraying time when spraying, etc. The time to use the pesticide must be selected before 10 a.m. (whistling) or after 4 p.m.

In general, the time of use is 9-10 a.m., the next evening or on an empty stomach.

Because insect repellents are very toxic, they can be used on an empty stomach to improve the insecticidal effect. After taking anthelmintic medication, try to eat more fiber-rich foods such as cabbage, apples, bananas, etc. After 4 p.m., anti-insect drugs are usually taken on an empty stomach.

It is best to take it in the middle of meals or before bedtime, as the food in the gastrointestinal tract is almost empty. At this time, taking the drug may increase the direct contact of the drug with the insect body and prolong the time of insect resistance. The longer the foliar fertilizers and pesticides (including fungicides) remain in the leaves after application, the slower the evaporation rate and the better the overall effect.

Therefore, when the rust fungus dries in the morning or the intensity of sunlight weakens in the evening, this is due to climatic characteristics and the regularity of the parasite's daytime activity, and the pesticide must be applied at a favorable time.

The appropriate time to apply pesticides is from 9 a.m. to 10 a.m. and after 4 p.m. Because after nine years, the dew on the leaves of crops is dry, and pesticides are used to control crop parasites. In order to obtain the best insecticidal effect, special attention should be paid to the time and place of use, in addition to choosing the appropriate drug and using it at the right time.

The above is a detailed interpretation of the problem, I hope it will help you, if you have any questions, you can leave me a message in the comment area, you can comment with me more, if there is something wrong, you can also interact with me more, if you like the author, you can also follow me, your like is the biggest help to me, thank you.

In the high temperature season, choose a sunny day after about 9 o'clock in the morning and after 4 o'clock in the afternoon, the effect of spraying is better, because after 9 o'clock in the morning, the dew has dried, the temperature is not too high, and the activity of pests and diseases is vigorous, so the effect of spraying is the best at this time; After 4 p.m., nocturnal pests are active, and spraying can effectively kill pests at this time.

Around two o'clock in the afternoon is best.

The expiration date of an insecticide spray can be seen according to the environmental conditions. If it is to kill mosquitoes and flies, it is recommended to consider the comprehensive situation of the surrounding environment, if the surrounding environment is good, it can get twice the result with half the effort, on the contrary, it is necessary to first consider the treatment of the surrounding environment.

Insecticide refers to a kind of agent that kills pests, such as beetles, flies, grubs, nose worms, jumping worms and nearly 10,000 other pests. The use of pesticides has gone through several stages: the first to be discovered are natural pesticides and inorganic compounds, but they have a single effect.

1. Large dosage and short duration of effect; Organosynthetic insecticides, such as organochlorines, organophosphorus and carbamates, are characterized by high efficiency and high or low residues, and many of them have high acute toxicity to mammals.

1. Usually after spraying insecticide, the insects in the area sprayed with insecticide will die one after another in about 10 minutes, if you want to have a better insecticidal effect, it is recommended to close the doors and windows for half an hour.

2. After using insecticides, it is recommended to enter the room after spraying every three hours, and the window should be opened immediately after entering the room, and the door also needs to be opened, which is conducive to ventilation, and the air can be blown away by entering the room, thereby reducing the impact on the human body. It's best to wait until you go out before you go out, so you don't have to count the time and the insecticidal effect will be better.