What are the matters needing attention for spraying pesticides in summer? How to use a medicine box to spray?

Summer is the time for the rapid growth of crops, and it is also the time for the high incidence of diseases and insect pests. What are the precautions for spraying pesticides in summer? How to use a medicine box to spray?

What are the matters needing attention for spraying pesticides in summer?

First, the temperature is high at noon in midsummer, the application of pesticides is easy to cause drug poisoning, which is harmful to human health. Therefore, the application time should be arranged before 9: 00 in the morning and after 4: 00 in the afternoon, and the control effect of pesticide is the best.

Second, many pests come out in the evening. Pests such as rice borer are afraid of heat and light. When the temperature is high and the light is strong at noon, they hide, resulting in poor effect of pesticide application under high temperature at noon.

Third, the application of pesticides at high temperature at noon, due to crop transpiration, increases the burden of crop water supply and causes drug damage to the tender leaves of crops.

Fourth, the liquid is volatile at high temperature at noon, which reduces the efficacy and control effect.

Fifth, do not use sewage dispensing, there are many impurities in the sewage, the dispensing with it is easy to block the sprinkler, but also can destroy the suspension of the agent and produce precipitation.

Sixth, do not use well water to dispense medicine, which contains more mineral substances. When these minerals are mixed with pesticides, they are easy to produce chemical action, form precipitation and reduce the efficacy.

Seventh, do not abuse pesticides, according to the types of crops, control objects and drug performance and the use of corresponding pesticides, really achieve the corresponding medicine, the abuse of pesticides will often cause drug harm.

Do not spray before harvest the residual period of high-toxic pesticides is about 60 days, and that of high-efficiency and low-toxic pesticides is about 15 days. Spraying before harvest is easy to cause food poisoning.

How to use a medicine box to spray?

First, add water to the medicine box, open the lid, and add the right amount of water to ensure that it can be used in one piece of land.

Second, add pesticides according to the appropriate proportion, how many pesticides per mu of land should be added appropriately.

Third, carry the medicine box, carry the medicine box on your back, and carry the two ropes over your shoulders.

Fourth, spraying pesticides, the left hand pressure up and down the pesticide box to increase the pressure in the box, the right hand holding the spraying rod to the vegetables, compared for a while the pesticide will be sprayed out.