Why do sprayers that have been sprayed with herbicides have to be cleaned properly?

Sprayers that have been sprayed with herbicides must be rigorously cleaned before they can be used to spray other pesticides.

A farmer friend of mine once killed a row of Chinese cabbage with a sprayer after paraquat was sprayed without cleaning.

Before spraying pesticides with herbicides, 50 100 grams of edible alkali or about 250 grams of white lime must be used, mixed with 10 15 kg of water, and the sprayer switch should be turned on after mixing evenly, and the switch should be turned off after the nozzle is out of the water. Soak the sprayer in this strong alkaline aqueous solution for 2 hours, and then wash it twice with water before it can be used to spray other pesticides.

The principle is: at present, most pesticides are acidic substances, and alkaline edible alkali or white lime will be neutralized. Inactivates herbicides that remain inside the sprayer. In this way, the cleaned sprayer can be used to spray other pesticides, and there will be no pesticide damage.

Cleaning the herbicide sprayer is actually very simple, that is, scoop half a scoop of water into the sprayer, shake it a few times, and pour out the water; Scoop some more water into the sprayer, turn on the spray switch, and spray the water inside. It doesn't need to be too troublesome, all herbicides must reach a certain concentration to produce efficacy, and it is not that they contain a little ingredient to be harmful. Remember that every time you spray herbicide, you must clean it immediately after spraying, and most of the causes of pesticide damage are caused by forgetting to clean the sprayer.

If all the sprayers are disassembled and cleaned repeatedly, it is inevitable to make a big fuss and it is unnecessary. Just clean water twice. Absolutely!

Sprayers that have been sprayed with herbicides must be cleaned. Herbicides are divided into incicisions, such as glyphosate, etc., and selective; According to the application method, it is divided into ground sealing and foliar spray. To know the type of herbicide used, do a good job of washing.

Herbicides are more acidic, you can first use alkaline surface to clean once, and then use washing powder (liquid) to clean 2 to 3 times. Finally, rinse with water.

When washing the sprayer, it is necessary to clean not only the medicine box, but also the spray bar and nozzle.

Because there is a residue. Herbicides are chemicals that wilt grasses and contain toxins that can cause damage to crops if not washed.

Cleaning the sprayer that has been sprayed with herbicide is to prevent drug residues. Avoid accidentally injuring healthy plants when spraying fertilizer. The second is to prevent the sprayer from being corroded by herbicides. Affect use.

It will volatilize cleanly, do not need to wipe, leave the room quickly after spraying, and open the window for ventilation after two hours, which can speed up the emission of pesticides.

Insecticide is a kind of agent that kills pests, such as beetles, flies, grubs, nose worms, jumping insects, 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 pesticides such as organochlorines, organophosphates and carbamates.

Precautions for the use of pesticides.

1. When buying insecticides, you should first put them in a place where children can't touch them (for fear that children will eat them by mistake, eyes and other harmful places).

2. After use, put it first, pay attention to ventilation, wash your hands immediately after use, and do not spray at people or food.

3. Do not hit, damage, or burn, put it away from the source of the fire, and do not put it into the fire. Do not use pesticides in households with pregnant women.

4. There are all kinds of insecticides on the market, and you should pay attention to distinguish them when buying them (some are not suitable for bedrooms, for example: mosquito coils are also insecticides).

There is no need to clean up, leave the room as soon as you finish spraying, and ventilate when you come back to speed up the distribution of insecticides.

On the ground floor, what are you talking about?

In principle, pesticides are just as volatile everywhere. You should mean to ask, if you want to kill things in the house, is the effect of the insecticide sprinkled on the window not good? It is better not to spill on the window.

After the insecticide is sprayed, it does not need to clean the sprayed area, it will volatilize on its own.

Whether it is indoor or outdoor insecticide, no one should approach after spraying the drug, because the drug residue will be dispersed after about 6 hours. If you are an office worker, you can kill insects before going to work in the morning, and you can live after work. If it is an outdoor insecticide, it is best to choose the morning, because the amount of ** at this time is relatively small.

In the process of spraying volatilization, it slowly combines with the floating matter in the air, and will not disperse for a long time, at this time, if people breathe indoors, they will inhale the air containing insecticides, which is very bad for the body, so they can not go in immediately after spraying insecticides.